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Results for "

Cysteine peptide

" in MedChemExpress (MCE) Product Catalog:

標的別:	Amyloid-β (1) Connective Peptide (1) ADC Linker (3) Amino Acid Derivatives (3) Antibiotic (2) Apoptosis (3) Bacterial (7) Biochemical Assay Reagents (11) Cathepsin (2) Complement System (1) CXCR (1) Deubiquitinase (1) DNA/RNA Synthesis (3) Drug Derivative (6) Drug-Linker Conjugates for ADC (1) EGFR (1) Endogenous Metabolite (5) Exosomes (1) Factor Xa (2) Ferroptosis (1) Fluorescent Dye (7) Fungal (1) HIV (5) HPV (1) Influenza Virus (1) Integrin (4) Kallikrein (1) Liposome (4) MARCKS (1) NF-κB (1) Parasite (2) PKA (1) PKC (1) Proteasome (1) Radionuclide-Drug Conjugates (RDCs) (1) Reactive Oxygen Species (ROS) (3) Reference Standards (1) Ser/Thr Protease (2) TGF-beta/Smad (1) Toll-like Receptor (TLR) (1) Tyrosinase (1)
研究分野別:	Cancer (18) Cardiovascular Disease (8) Infection (15) Inflammation/Immunology (10) Metabolic Disease (2) Neurological Disease (5)
クリックケミストリー:	TCO (1)
Oligonucleotides:	Pegylated Lipids (1)

阻害剤およびアゴニスト

蛍光色素

生化学アッセイ試薬

ペプチド

天然物

クリックケミストリー

オリゴヌクレオチド

Targets Recommended: ASCT Calpain RXFP Receptor Formyl Peptide Receptor (FPR) Peptide-Drug Conjugates (PDCs) Natriuretic Peptide Receptor (NPR) Connective Peptide CGRP Receptor Amyloid-β

製品番号	製品名	Target	研究分野	構造式

HY-D0843

N-Ethylmaleimide 35+ Cited Publications NEM	Cathepsin Deubiquitinase Apoptosis	Others
N-Ethylmaleimide (NEM) derives from maleic acid, it can alkylates free sulfhydryl. N-Ethylmaleimide is an irreversible cysteine protease inhibitor. N-ethylmaleimide specific inhibits phosphate transport in mitochondria. N-Ethylmaleimide inhibits prolyl endopeptidase with an IC₅₀ value of 6.3 μM. N-Ethylmaleimide can be used to modify cysteine residues in proteins and peptides .

HY-P1351

Angiopep-2-Cys	Biochemical Assay Reagents	Cancer
Angiopep-2-cys is a conjugate of Angiopep-2 hydrochloride (HY-P2341) and cysteine. Angiopep-2 hydrochloride is a brain peptide vector. The conjugation of anticancer agents with the Angiopep-2 peptide vector could increase their efficacy in the treatment of brain cancer .

HY-D0098

Fluorescein-5-maleimide 5 Publications Verification N-(5-Fluoresceinyl)maleimide	Fluorescent Dye	Others
Fluorescein-5-maleimide (N-(5-Fluoresceinyl)maleimide) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm .

HY-P10533

**Cysteine peptide**	Tyrosinase	Others
Cysteine peptide is a tyrosinase inhibitor with skin-whitening, antioxidant and multi-regulatory activities. Cysteine peptide inhibits enzyme activity and blocks melanin transport, effectively reducing UV-B-induced skin erythema and pigmentation. Cysteine peptide synergistically maintains skin health by quenching ROS, resisting oxidative stress and promoting pheomelanin production. Cysteine peptide safely prevents daily ultraviolet damage and supports moderate sun exposure for vitamin D synthesis. Cysteine peptide also acts as a plant signaling factor to regulate vegetative growth, development and stress resistance responses .

HY-128945

CL2A	ADC Linker	Inflammation/Immunology Cancer
CL2A is a claevable complicated PEG8- and triazole-containing PABC-peptide-mc linker. CL2A is cleavable through pH sensitivity, giving rise to bystander effect, and binds the antibody at a cysteine residue via a disulfide bond. Labetuzumab govitecan used this linker .

HY-113110

Cysteinylglycine L-Cysteinylglycine; Cys-Gly; H-Cys-Gly-OH	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis	Cardiovascular Disease Cancer
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) is a dipeptide formed by the peptide bond linkage between cysteine (Cysteine) and glycine (Glycine). Cysteinylglycine is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine reduces ferric iron to ferrous iron, drives the redox cycle of iron, generates reactive oxygen species (ROS), stimulates oxidative reactions, induces lipid peroxidation of human plasma LDL lipoproteins, and causes oxidative damage to DNA bases. Cysteinylglycine can be used as a biomarker to evaluate ischemic heart disease, breast cancer and other conditions .

HY-W087027

Maleimide-NOTA	Radionuclide-Drug Conjugates (RDCs) Biochemical Assay Reagents Integrin	Cancer
Maleimide-NOTA is a chelate. Maleimide-NOTA can be site-specifically coupled to the hPD-L1 nanobody bearing the Cys-tag. Maleimide-NOTA can specifically conjugate to A20FMDV2 (HY-P1654). The [ ⁶⁸Ga]Ac-CG6 formed by the conjugation of ⁶⁸Ga radiolabeled Maleimide-NOTA with A20FMDV2 can be used for PET imaging of αvβ6 integrin-positive pancreatic ductal adenocarcinoma .

HY-D2906

Alexa fluor 647 maleimide	Fluorescent Dye	Others
Alexa fluor 647 maleimide is a bright, far-red-emitting fluorescent dye for labeling of protein SH groups (Ex/Em = 656/670 nm). Alexa fluor 647 maleimide can be used to attach AF 647 fluorophore to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides). Alexa Fluor 647 maleimide is promising for research of cell biology, neuroscience, and disease diagnostics .

HY-P4093

Cys-Penetratin	Biochemical Assay Reagents	Others
Cys-Penetratin is a cysteine-containing cell-penetrating peptide with sequence CRQIKIWFQNRRMKWKK. Cys-Penetratin can Cys-Penetratin can be used for the research for the research of drug delivery .

HY-151696

TCO-PEG3-maleimide	ADC Linker	Others
TCO-PEG3-maleimide (TCO-PEG3-NEM) is a click chemistry reagent. TCO-PEG3-maleimide efficiently binds TCO (trans-cyclooctene) moiety to thiol-containing molecules (such as antibodies, cysteine-containing peptides) .

HY-P11308

Cys-GE11	EGFR	Cancer
Cys-GE11 is an N-terminal modified GE11 (HY-P10128) with cysteine (Cys) added. Cys-GE11 can be coupled through the thiol group of Cys. Cys-GE11 can be linked to PEG-P (TMC-DTC) through the N-terminus of cysteine to form a targeted polymer. Cys-GE11 can target cells with high EGFR expression (such as SMMC-7721 cells). Cys-GE11 can significantly enhance drug enrichment at the tumor site and exhibit low toxicity .

HY-D2381

AF 488 maleimide	Fluorescent Dye	Others
AF 488 maleimide is a thiol-reactive dye used to label SH groups of proteins, which can attach the AF 488 fluorophore to cysteine residue-containing proteins and peptides as well as other thiolated molecules. AF 488 maleimide enables real-time visualization of dynamic pilus extension and retraction in live bacterial cells via epifluorescence microscopy (Ex/Em = 470/520 nm) .

HY-142021

Z-Leu-Arg-AMC	Cathepsin Parasite	Infection Inflammation/Immunology
Z-Leu-Arg-AMC is a fluorogenic peptide substrate for cysteine proteases (e.g., Cathepsin) (Ex=350 nm，Em=460 nm). Z-Leu-Arg-AMC is preferentially cleaved by Cathepsin K and S under weakly acidic conditions, while its hydrolysis relies on residual Cathepsin S activity at neutral pH. Z-Leu-Arg-AMC serves as a substrate for recombinant Sphenophorus levis Cathepsin L, falcipain-2, falcipain-3, berghepain-2, knowlepain-2, vivapain-2, as well as falcipain-2 chimeras and constructs. It enables quantitative detection of cysteine protease activity in human inflammatory bronchoalveolar lavage fluid via fluorescence generation. Z-Leu-Arg-AMC can be used in research related to pulmonary inflammatory diseases and malaria .

HY-165613

Pam2Cys Dipalmitoyl-S-glyceryl-Cysteine; S-[2,3-Bis(palmitoyloxy)propyl]Cysteine	Toll-like Receptor (TLR) Influenza Virus NF-κB	Infection Inflammation/Immunology
Pam2Cys (Dipalmitoyl-S-glyceryl-cysteine; S-[2,3-Bis(palmitoyloxy)propyl]cysteine) is a TLR2 agonist and immunostimulant. Pam2Cys binds to TLR2 to activate dendritic cells and trigger the TLR2-dependent NF-κB signaling pathway. Pam2Cys also induces dendritic cell maturation by upregulating the expression of cell surface MHC II molecules. Pam2Cys activates innate immune signaling pathways, drives pro-inflammatory and antimicrobial responses, enhances the expression of macrophage activation markers, increases phagocytic activity, induces the release of IL-12 and pro-inflammatory cytokines, and polarizes macrophages into a pro-inflammatory, antimicrobial phenotype without interfering with IL-10-induced macrophage polarization. Pam2Cys also serves as the lipid moiety in synthetic lipopeptide vaccines and possesses self-adjuvant properties. Pam2Cys enhances the immunogenicity of conjugated peptide segments and induces cellular and humoral immune responses. However, it does not activate CD4 T cells in mouse splenocyte cultures when used alone. Pam2Cys activates pulmonary TLR2 signaling pathways, triggers innate immune responses, recruits neutrophils and macrophages, induces the secretion of various cytokines, alleviates symptoms and damages associated with influenza A virus infection in mice without impairing adaptive immunity. Pam2Cys can be used in studies related to tuberculosis and influenza A virus infection .

HY-137199

Pro-Phe-Arg-AMC	Biochemical Assay Reagents	Others
Pro-Phe-Arg-AMC is a synthetic peptide substrate of Cysteine peptidases (CPs) .

HY-114174

Fmoc-Ala-Glu-Asn-Lys-NH2 3 Publications Verification	Amyloid-β	Neurological Disease
Fmoc-Ala-Glu-Asn-Lys-NH2 is a selective asparagine endopeptidase (AEP) inhibitor peptide and suppresses amyloid precursor protein (APP) cleavage. AEP, a pH-controlled cysteine proteinase, is activated during ageing and mediates APP proteolytic processing .

HY-P2315

Human β-defensin-1 HβD-1	Antibiotic Bacterial	Infection
Human β-defensin-1 (HβD-1) is a cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by all epithelial surfaces, but also by circulatory cells and cells of the reproductive tract. Human β-defensin-1 has antimicrobial activities against a broad-sperm bacteria .

HY-D2186

BTD probe-1 1 Publications Verification	Biochemical Assay Reagents	Others
BTD probe-1 is a benzothiazine-based chemoproteomic probe and selective protein S-sulfenic acid (Cys-SOH) labeling agent. BTD probe-1 labels protein S-sulfenic acids in vitro in cell and tissue samples, and in situ in intact cells, enabling detection or enrichment of modified proteins/peptides. BTD probe-1 exhibits no cytotoxicity in cells at concentrations ≤1 mM. BTD probe-1 enables global, site-specific mapping and quantification of cysteine S-sulfenylation in complex proteomes with lower input material .

HY-E70364

IgdE protease	Biochemical Assay Reagents	Inflammation/Immunology
IgdE protease is a cysteine protease, which is initially isolated from Streptococcus agalactiae. IgdE protease digests monoclonal antibodies (mAbs) of the IgG1 type specifically at their upper hinge region, produces Fc/2, hinge peptide dimers, and Fab fragment. IgdE protease can be used in disulfide bonds and free thiol analysis, as it requires no reducing agents for cleavage .

HY-P1801A

Cys-TAT(47-57) TFA Cys-[HIV-Tat (47-57)] TFA	HIV Drug Derivative	Others
Cys-TAT(47-57) (Cys-[HIV-Tat (47-57)]) TFA, TAT (HY-P0281) derivative, is a Cysteine (HY-Y0337)-tagged cell-penetrating peptide (CPP) derived from the HIV TAT protein. Cys-TAT(47-57) TFA can be used for the research for the research of drug delivery .

HY-W012166

N-Succinimidyl bromoacetate NHS-Bromoacetate	Biochemical Assay Reagents	Infection
N-Succinimidyl bromoacetate (NHS-Bromoacetate) is a heterobifunctional crosslinking reagent, mainly used to modify the ɛ-amino group of lysine side chains. By covalently linking its bromoacetyl moiety to the ɛ-amino group of lysine in peptidomimetics, N-Succinimidyl bromoacetate enables their conjugation with thiol-modified nanoparticles via thioether bonds. N-Succinimidyl bromoacetate also performs bromoacetylation modification on carrier proteins, which then forms stable thioether bonds with the thiol groups of cysteine in peptides, thus efficiently preparing soluble peptide-protein conjugates with high substitution ratios. N-Succinimidyl bromoacetate can be used to prepare activated Sepharose derivatives for affinity chromatography, protein affinity labeling reagents, and peptide-protein immunogen conjugates with non-immunogenic linkages. N-Succinimidyl bromoacetate is applicable to studies related to HIV-1 infection and glioblastoma multiforme .

HY-P4087

Cys(Npys)-(Arg)9	HIV	Infection Cancer
Cys(Npys)-(Arg)9 is a synthetic cationic cell-penetrating peptide with a reversible thiol-reactive nitropyridyl (Npys) group. Cys(Npys)-(Arg)9 efficiently mediates the internalization and delivery of various "cargo" such as proteins and antibodies by forming reversible disulfide bonds with surface-exposed cysteine residues. Cys(Npys)-(Arg)9 endows TALEN proteins with cell-penetrating activity, enabling gene knockout in mammalian cells and protein transduction in wheat microspores. Cys(Npys)-(Arg)9 can be conjugated with antibodies to form cationized IgG for enhancing endosomal escape of oligonucleotides, or form siRNA delivery complexes. When the molar ratio of Cys(Npys)-(Arg)9 to loaded molecules is higher than 1:1, it exerts certain cytotoxic effects on cells. Cys(Npys)-(Arg)9 can be used in studies related to oral squamous cell carcinoma and HIV infection .

HY-P5681

Human α-Defensin 6	Bacterial	Infection Inflammation/Immunology
Human α-Defensin 6, a 32-residue cysteine-rich peptide, can inhibit bacterial invasion and contribute to the mucosal immunity. Human α-Defensin 6 forms ordered self-assembly fibrils and nanonets that surround and entangle bacteria after stochastic binding to bacterial surface proteins. Human α-Defensin 6 also inhibits C. albicans biofilm formation .

HY-W736950A

H-L-Cys(MDNPE)-OH hydrochloride	Amino Acid Derivatives	Others
H-L-Cys(MDNPE)-OH hydrochloride is a cysteine derivative with a short peptide sequence attached to the thiol group of cysteine.

HY-P5969

Cys-V5 Peptide	Biochemical Assay Reagents	Others
Cys-V5 Peptide, a tag peptide, is the V5 Peptide with an N-terminal cysteine. Cys-V5 Peptide can be used to label proteins

HY-D1423

Dibromobimane	Fluorescent Dye	Others
Dibromobimane is a thiol-selective fluorescent imaging agent. Dibromobimane is used to crosslink cysteine- and homocysteine-containing peptides .

HY-177205

DSPE-PEG2000-CRPPR	Biochemical Assay Reagents	Others
DSPE-PEG2000-CRPPR is a polyethylene glycol (PEG) conjugate composed of DSPE and Heart-homing peptide (CRPPR) (HY-P10641). DSPE-PEGs are modified with the CRPPR peptide to bind cysteine-rich protein 2 (CRIP2) as well as FITC-labeled superparamagnetic iron oxide nanoparticles .

HY-P4101

Cys(Npys)-TAT (47-57)	HIV	Infection
Cys(Npys)-TAT (47-57) is a peptide fragment of TAT peptide and it is able to interact with plasmid DNA electrostatically. Cys(Npys)-TAT (47-57) is corresponding to the transduction domain of TAT with an activated cysteine residue C. TAT is a small nuclear transcriptional activator protein encoded by HIV-1 .

HY-P11286

A7RC	Complement System	Cancer
A7RC is a multifunctional peptide used in tumor-targeted therapy, with Cysteine added to the C-terminal of the A7R peptide (sequence: ATWLPPR). A7R (HY-P1663) is a ligand of the NRP-1 receptor, regulating intracellular signal transduction related to tumor vascularization and tumor growth .

HY-126809A

Bz-Pro-Phe-Arg-pNA hydrochloride Bz-PFR-pNA hydrochloride	Factor Xa	Others
Bz-Pro-Phe-Arg-pNA (Bz-PFR-pNA) hydrochloride is a chromogenic peptide substrate for plasma and glandular Kallikrein, cysteine proteinase (Cruzipain) and Trypsin. Bz-Pro-Phe-Arg-pNA hydrochloride can be used in Factor XII assay .

HY-P1801

Cys-TAT(47-57) Cys-[HIV-Tat (47-57)]	HIV Drug Derivative	Others
Cys-TAT(47-57) (Cys-[HIV-Tat (47-57)]), TAT (HY-P0281) derivative, is a Cysteine (HY-Y0337)-tagged cell-penetrating peptide (CPP) derived from the HIV TAT protein. Cys-TAT(47-57) can be used for the research for the research of drug delivery .

HY-172721

Cy3B maleimide	Fluorescent Dye	Others
Cy3B maleimide is a mono-reactive dye containing maleimide group, which can selectively and efficiently attach Cyanine3 fluorophore (an analog of Cy3) to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides). Cy3B is an improved version of Cy3 dyes with significantly increased fluorescence quantum yield and photostability.

HY-E70018

Picornain 3C	Endogenous Metabolite	Infection Metabolic Disease
Picornain 3C is a protease found in picornaviruses, which cleaves peptide bonds of non-terminal sequences. Picornain 3C is an intermediate between the serine peptidase chymotrypsin and the cysteine peptidase papain. Picornain 3C shows endopeptidase activity by selectively cleaving Gln-Gly bonds in the polyprotein of poliovirus and with substitution of Glu for Gln, and Ser or Thr for Gly in other picornaviruses .

HY-P2313

Human β-defensin-2 HβD-2	Antibiotic Bacterial	Infection
Human β-defensin-2 (HβD-2) is a small cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by a number of epithelial cells.Human β-defensin-2 has antimicrobial activity against gram-negative bacteria and Candida, but not gram-positive Staphylococcus aureus . Human β-defensin-2 can be used for the study of colitis .

HY-113110A

Cysteinylglycine TFA L-Cysteinylglycine TFA; Cys-Gly TFA; H-Cys-Gly-OH TFA	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis	Cardiovascular Disease Cancer
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) TFA is a dipeptide formed by the peptide bond connection of cysteine and glycine. Cysteinylglycine TFA is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine TFA can reduce trivalent iron to divalent iron, driving the redox cycle of iron, generating reactive oxygen species (ROS), stimulating oxidative reactions, inducing lipid peroxidation in human plasma LDL lipoproteins, and causing oxidative damage to DNA base. Cysteinylglycine TFA can be used as a biomarker to assess ischemic heart disease and breast cancer, etc ^[1][2][3][4].

HY-P4087B

Cys(Npys)-(Arg)9 acetate	HIV	Others
Cys(Npys)-(Arg)9 acetate is a synthetic cationic cell-penetrating peptide with a reversible thiol-reactive nitropyridyl (Npys) group. Cys(Npys)-(Arg)9 acetate efficiently mediates the internalization and delivery of various "cargo" such as proteins and antibodies by forming reversible disulfide bonds with surface-exposed cysteine residues. Cys(Npys)-(Arg)9 acetate endows TALEN proteins with cell-penetrating activity, enabling gene knockout in mammalian cells and protein transduction in wheat microspores. Cys(Npys)-(Arg)9 acetate can be conjugated with antibodies to form cationized IgG for enhancing endosomal escape of oligonucleotides, or form siRNA delivery complexes. When the molar ratio of Cys(Npys)-(Arg)9 acetate to loaded molecules is higher than 1:1, it exerts certain cytotoxic effects on cells. Cys(Npys)-(Arg)9 acetate can be used in studies related to oral squamous cell carcinoma and HIV infection .

HY-P11316

DBCO-tag peptide P1	Biochemical Assay Reagents Drug-Linker Conjugates for ADC	Others
DBCO-tag peptide P1 is a cysteine-containing peptide tag. DBCO-tag peptide P1 selectively reacts with dibenzocyclooctyne (DBCO) to yield stable dibenzocyclooctenyl thioethers. DBCO-tag peptide P1 enables site-selective mEGFP labeling and antibody (such as Trastuzumab (HY-P9907)) labelling without impairing the protein binding function. DBCO-tag peptide P1 can be used for ADC synthesis and mEGFP labeling research .

HY-159703

Glu-Cys Glutamyl-Cysteine; PSSGlu-Cys	Endogenous Metabolite	Others
Glu-Cys (Glutamyl-cysteine; PSSGlu-Cys) is a dipeptide composed of L-glutamic acid (HY-14608) and L-cysteine (HY-Y0337) joined by a peptide linkage .

HY-P11541

CTP-Cys	Amino Acid Derivatives	Others
CTP-Cys is a cysteine attached to CTP (HY-P4094) for peptide conjugation .

HY-134517

Fmoc-HoCys(ACM)-OH	Amino Acid Derivatives	Others
Fmoc-HoCys(ACM)-OH, a homolog of cysteine, is synthesized from L-methionine. Fmoc-HoCys(ACM)-OH also can be used for the synthesis of solid phase peptide .

HY-128945A

CL2A TFA	ADC Linker	Inflammation/Immunology Cancer
CL2A TFA is a claevable complicated PEG8- and triazole-containing PABC-peptide-mc linker. CL2A TFA is cleavable through pH sensitivity, giving rise to bystander effect, and binds the antibody at a cysteine residue via a disulfide bond. Labetuzumab govitecan used this linker .

HY-P5320

TAT-BH4 (Bcl-xL)	Apoptosis	Others
TAT-BH4 (Bcl-xL) localized mainly at the mitochondria, prevents apoptotic cell death. TAT-BH4 (Bcl-xL) is a fusion peptide that combines the N-terminal cysteine conjugated protein transduction domain of HIV TAT protein (amino acids 49 to 57) with the Bcl-xL BH4 peptide. TAT-BH4 can be used for research of diseases caused by accelerated apoptosis .

HY-P10428

E6AP-mimicking peptide	HPV	Infection
E6AP-mimicking peptide (compound 13) is a high-affinity, selective, irreversible and potent peptide-based covalent HPV16 E6 inhibitor targeting the 16E6 oncoprotein using a cysteine-reactive acrylamide warhead. E6AP-mimicking peptide has a K_i of 17 nM. E6AP-mimicking peptide targets all residues appearing in the binding pocket of E6 to disrupt the binding interface of 16E6 and E6AP. E6AP-mimicking peptide selectively binds and crosslinks to MBP-16E6 in PBS or a protein mixture .

HY-P4370

Hepcidin-20 (human)	Bacterial Fungal	Infection
Hepcidin-20 (human) is a histidine-containing, cysteine-rich, β-sheet structured peptide. Hepcidin-20 (human) shows antifungal activity. Hepcidin-20 (human) inhibits biofilm formation and bacterial cell metabolism of polysaccharide intercellular adhesin (PIA)-positive and PIA-negative strains .

HY-113110R

Cysteinylglycine (Standard) L-Cysteinylglycine (Standard); Cys-Gly (Standard); H-Cys-Gly-OH (Standard)	Reference Standards Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis	Cardiovascular Disease Cancer
Cysteinylglycine (Standard) is the analytical standard of Cysteinylglycine. This product is intended for research and analytical applications. Cysteinylglycine is a dipeptide formed by the peptide bond linkage between cysteine (Cysteine) and glycine (Glycine). Cysteinylglycine is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine reduces ferric iron to ferrous iron, drives the redox cycle of iron, generates reactive oxygen species (ROS), stimulates oxidative reactions, induces lipid peroxidation of human plasma LDL lipoproteins, and causes oxidative damage to DNA bases. Cysteinylglycine can be used as a biomarker to evaluate ischemic heart disease, breast cancer and other conditions .

HY-P5377

Abz-HPGGPQ-EDDnp Cathepsin K substrate	Ser/Thr Protease	Others
Abz-HPGGPQ-EDDnp (Cathepsin K substrate) is a biological active peptide. (Cathepsins are a class of globular lysosomal proteases, playing a vital role in mammalian cellular turnover. They degrade polypeptides and are distinguished by their substrate specificities. Cathepsin K is the lysosomal cysteine protease involved in bone remodeling and resorption. It has potential as a drug target in autoimmune diseases and osteoporosis.This FRET peptide can be used to monitor selectively cathepsin K activity in physiological fluids and cell lysates. Abz-HPGGPQ-EDDnp [where Abz represents o-aminobenzoic acid and EDDnp represents N -(2, 4-dinitrophenyl)-ethylenediamine], a substrate initially developed for trypanosomal enzymes, is efficiently cleaved at the Gly-Gly bond by cathepsin K. This peptide is resistant to hydrolysis by cathepsins B, F, H, L, S and V, Ex/Em=340 nm/420 nm.)

HY-P5071

EcAMP3	Bacterial	Infection
EcAMP3 is a hairpin-like peptide. EcAMP3 has antifungal and antibacterial activity. EcAMPs precursor family contains seven *identical cysteine* motifs**: C1XXXC2(11–13)C3XXXC4 .

HY-133975

Isoleucylcysteine	Bacterial	Metabolic Disease
Isoleucylcysteine, a dipeptide composed of isoleucine and cysteine, is an intermediate peptide in bacitracin biosynthesis .

HY-P3920

Cys-Kemptide	PKA	Cancer
Cys-Kemptide is a cysteine-terminated substrate peptide that can used to measure protein kinase A (PKA) activity .

HY-P6009

Cys-αvβ6-BP	Integrin	Cancer
Cys-αvβ6-BP is a cysteine-terminated αvβ6 binding peptide .

製品番号	製品名	Type

HY-D0098

Fluorescein-5-maleimide

5 Publications Verification

N-(5-Fluoresceinyl)maleimide

蛍光色素

Fluorescein-5-maleimide (N-(5-Fluoresceinyl)maleimide) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm .

HY-D2906

Alexa fluor 647 maleimide

蛍光色素

Alexa fluor 647 maleimide is a bright, far-red-emitting fluorescent dye for labeling of protein SH groups (Ex/Em = 656/670 nm). Alexa fluor 647 maleimide can be used to attach AF 647 fluorophore to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides). Alexa Fluor 647 maleimide is promising for research of cell biology, neuroscience, and disease diagnostics .

HY-D2381

AF 488 maleimide	蛍光色素
AF 488 maleimide is a thiol-reactive dye used to label SH groups of proteins, which can attach the AF 488 fluorophore to cysteine residue-containing proteins and peptides as well as other thiolated molecules. AF 488 maleimide enables real-time visualization of dynamic pilus extension and retraction in live bacterial cells via epifluorescence microscopy (Ex/Em = 470/520 nm) .

HY-D2186

BTD probe-1

1 Publications Verification

蛍光色素

BTD probe-1 is a benzothiazine-based chemoproteomic probe and selective protein S-sulfenic acid (Cys-SOH) labeling agent. BTD probe-1 labels protein S-sulfenic acids in vitro in cell and tissue samples, and in situ in intact cells, enabling detection or enrichment of modified proteins/peptides. BTD probe-1 exhibits no cytotoxicity in cells at concentrations ≤1 mM. BTD probe-1 enables global, site-specific mapping and quantification of cysteine S-sulfenylation in complex proteomes with lower input material .

HY-D1423

Dibromobimane	蛍光色素
Dibromobimane is a thiol-selective fluorescent imaging agent. Dibromobimane is used to crosslink cysteine- and homocysteine-containing peptides .

HY-172721

Cy3B maleimide

蛍光色素

Cy3B maleimide is a mono-reactive dye containing maleimide group, which can selectively and efficiently attach Cyanine3 fluorophore (an analog of Cy3) to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides). Cy3B is an improved version of Cy3 dyes with significantly increased fluorescence quantum yield and photostability.

HY-P11316

DBCO-tag peptide P1

蛍光色素

DBCO-tag peptide P1 is a cysteine-containing peptide tag. DBCO-tag peptide P1 selectively reacts with dibenzocyclooctyne (DBCO) to yield stable dibenzocyclooctenyl thioethers. DBCO-tag peptide P1 enables site-selective mEGFP labeling and antibody (such as Trastuzumab (HY-P9907)) labelling without impairing the protein binding function. DBCO-tag peptide P1 can be used for ADC synthesis and mEGFP labeling research .

HY-D0151

Tetramethylrhodamine-5-maleimide	蛍光色素
Tetramethylrhodamine-5-maleimide is a fluorescent probe with high specificity for cysteine thiol (SH) groups. Tetramethylrhodamine-5-maleimide has high sensitivity, responds rapidly to negatively charged nanoparticles, and shows a concentration-dependent decrease in fluorescence intensity, but it is susceptible to interference from humic acids .

HY-DY1088

Fluorescein-5-maleimide (solution)

N-(5-Fluoresceinyl)maleimide (solution)

蛍光色素

Fluorescein-5-maleimide (solution) (N-(5-Fluoresceinyl)maleimide (solution)) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm .

Solvent and concentration: DMSO: 10 mM

製品番号	製品名	Type

HY-177205

DSPE-PEG2000-CRPPR	生化学アッセイ試薬
DSPE-PEG2000-CRPPR is a polyethylene glycol (PEG) conjugate composed of DSPE and Heart-homing peptide (CRPPR) (HY-P10641). DSPE-PEGs are modified with the CRPPR peptide to bind cysteine-rich protein 2 (CRIP2) as well as FITC-labeled superparamagnetic iron oxide nanoparticles .

HY-177205C

DSPE-PEG5000-CRPPR	生化学アッセイ試薬
DSPE-PEG5000-CRPPR is a PEG compound which composed of DSPE and a?Heart-homing peptide?(CRPPR) (HY-P10641). CRPPR is a linear peptide containing arginine that has the ability to specifically bind to the cardiac endothelium and uses cysteine-rich protein-2 (CRIP-2) as its receptor. DSPE-PEG5000-CGKRK can be used for drug delivery .

HY-177205A

DSPE-PEG1000-CRPPR	生化学アッセイ試薬
DSPE-PEG1000-CRPPR is a PEG compound which composed of DSPE and a?Heart-homing peptide?(CRPPR) (HY-P10641). CRPPR is a linear peptide containing arginine that has the ability to specifically bind to the cardiac endothelium and uses cysteine-rich protein-2 (CRIP-2) as its receptor. DSPE-PEG1000-CGKRK can be used for drug delivery .

HY-177205B

DSPE-PEG3400-CRPPR	生化学アッセイ試薬
DSPE-PEG3400-CRPPR is a PEG compound which composed of DSPE and a?Heart-homing peptide?(CRPPR) (HY-P10641). CRPPR is a linear peptide containing arginine that has the ability to specifically bind to the cardiac endothelium and uses cysteine-rich protein-2 (CRIP-2) as its receptor. DSPE-PEG3400-CGKRK can be used for drug delivery .

製品番号	製品名	Target	研究分野

HY-P1351

Angiopep-2-Cys	Biochemical Assay Reagents	Cancer
Angiopep-2-cys is a conjugate of Angiopep-2 hydrochloride (HY-P2341) and cysteine. Angiopep-2 hydrochloride is a brain peptide vector. The conjugation of anticancer agents with the Angiopep-2 peptide vector could increase their efficacy in the treatment of brain cancer .

HY-P10533

**Cysteine peptide**	Tyrosinase	Others
Cysteine peptide is a tyrosinase inhibitor with skin-whitening, antioxidant and multi-regulatory activities. Cysteine peptide inhibits enzyme activity and blocks melanin transport, effectively reducing UV-B-induced skin erythema and pigmentation. Cysteine peptide synergistically maintains skin health by quenching ROS, resisting oxidative stress and promoting pheomelanin production. Cysteine peptide safely prevents daily ultraviolet damage and supports moderate sun exposure for vitamin D synthesis. Cysteine peptide also acts as a plant signaling factor to regulate vegetative growth, development and stress resistance responses .

HY-113110

Cysteinylglycine L-Cysteinylglycine; Cys-Gly; H-Cys-Gly-OH	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis	Cardiovascular Disease Cancer
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) is a dipeptide formed by the peptide bond linkage between cysteine (Cysteine) and glycine (Glycine). Cysteinylglycine is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine reduces ferric iron to ferrous iron, drives the redox cycle of iron, generates reactive oxygen species (ROS), stimulates oxidative reactions, induces lipid peroxidation of human plasma LDL lipoproteins, and causes oxidative damage to DNA bases. Cysteinylglycine can be used as a biomarker to evaluate ischemic heart disease, breast cancer and other conditions .

HY-P4093

Cys-Penetratin	Biochemical Assay Reagents	Others
Cys-Penetratin is a cysteine-containing cell-penetrating peptide with sequence CRQIKIWFQNRRMKWKK. Cys-Penetratin can Cys-Penetratin can be used for the research for the research of drug delivery .

HY-P11308

Cys-GE11	EGFR	Cancer
Cys-GE11 is an N-terminal modified GE11 (HY-P10128) with cysteine (Cys) added. Cys-GE11 can be coupled through the thiol group of Cys. Cys-GE11 can be linked to PEG-P (TMC-DTC) through the N-terminus of cysteine to form a targeted polymer. Cys-GE11 can target cells with high EGFR expression (such as SMMC-7721 cells). Cys-GE11 can significantly enhance drug enrichment at the tumor site and exhibit low toxicity .

HY-137199

Pro-Phe-Arg-AMC	Biochemical Assay Reagents	Others
Pro-Phe-Arg-AMC is a synthetic peptide substrate of Cysteine peptidases (CPs) .

HY-114174

Fmoc-Ala-Glu-Asn-Lys-NH2 3 Publications Verification	Amyloid-β	Neurological Disease
Fmoc-Ala-Glu-Asn-Lys-NH2 is a selective asparagine endopeptidase (AEP) inhibitor peptide and suppresses amyloid precursor protein (APP) cleavage. AEP, a pH-controlled cysteine proteinase, is activated during ageing and mediates APP proteolytic processing .

HY-P10940

Ac-RFAAKAA-COOH	ペプチド	Inflammation/Immunology
Ac-RFAAKAA-COOH is a cysteine-containing polypeptide with a reactive lysine residue, and serves as a substrate for covalent modification and chemical reactivity assays. Ac-RFAAKAA-COOH forms stable covalent adducts with isothiocyanates, resulting in peptide depletion over time. Ac-RFAAKAA-COOH acts as a model peptide in direct peptide reactivity assays, where its chemical reactivity is evaluated via fluorescamine-based free amine assays. Ac-RFAAKAA-COOH can be used in studies related to allergic contact dermatitis and skin sensitization .

HY-P2315

Human β-defensin-1 HβD-1	Antibiotic Bacterial	Infection
Human β-defensin-1 (HβD-1) is a cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by all epithelial surfaces, but also by circulatory cells and cells of the reproductive tract. Human β-defensin-1 has antimicrobial activities against a broad-sperm bacteria .

HY-P10641A

Heart-homing peptide TFA	ペプチド	Cardiovascular Disease
Heart-homing peptide TFA is a Pentapeptide, CRPPR. CRPPR is a linear peptide containing arginine that has been identified as a heart-homing peptide owing to its ability to specifically bind to heart endothelium, and cysteine-rich protein-2 (CRIP-2) has been proposed as the receptor. Heart-homing peptide TFA can be used for conjugating liposomes .

HY-P1801A

Cys-TAT(47-57) TFA Cys-[HIV-Tat (47-57)] TFA	HIV Drug Derivative	Others
Cys-TAT(47-57) (Cys-[HIV-Tat (47-57)]) TFA, TAT (HY-P0281) derivative, is a Cysteine (HY-Y0337)-tagged cell-penetrating peptide (CPP) derived from the HIV TAT protein. Cys-TAT(47-57) TFA can be used for the research for the research of drug delivery .

HY-P4087

Cys(Npys)-(Arg)9	HIV	Infection Cancer
Cys(Npys)-(Arg)9 is a synthetic cationic cell-penetrating peptide with a reversible thiol-reactive nitropyridyl (Npys) group. Cys(Npys)-(Arg)9 efficiently mediates the internalization and delivery of various "cargo" such as proteins and antibodies by forming reversible disulfide bonds with surface-exposed cysteine residues. Cys(Npys)-(Arg)9 endows TALEN proteins with cell-penetrating activity, enabling gene knockout in mammalian cells and protein transduction in wheat microspores. Cys(Npys)-(Arg)9 can be conjugated with antibodies to form cationized IgG for enhancing endosomal escape of oligonucleotides, or form siRNA delivery complexes. When the molar ratio of Cys(Npys)-(Arg)9 to loaded molecules is higher than 1:1, it exerts certain cytotoxic effects on cells. Cys(Npys)-(Arg)9 can be used in studies related to oral squamous cell carcinoma and HIV infection .

HY-P5681

Human α-Defensin 6	Bacterial	Infection Inflammation/Immunology
Human α-Defensin 6, a 32-residue cysteine-rich peptide, can inhibit bacterial invasion and contribute to the mucosal immunity. Human α-Defensin 6 forms ordered self-assembly fibrils and nanonets that surround and entangle bacteria after stochastic binding to bacterial surface proteins. Human α-Defensin 6 also inhibits C. albicans biofilm formation .

HY-P5969

Cys-V5 Peptide	Biochemical Assay Reagents	Others
Cys-V5 Peptide, a tag peptide, is the V5 Peptide with an N-terminal cysteine. Cys-V5 Peptide can be used to label proteins

HY-P4101

Cys(Npys)-TAT (47-57)	HIV	Infection
Cys(Npys)-TAT (47-57) is a peptide fragment of TAT peptide and it is able to interact with plasmid DNA electrostatically. Cys(Npys)-TAT (47-57) is corresponding to the transduction domain of TAT with an activated cysteine residue C. TAT is a small nuclear transcriptional activator protein encoded by HIV-1 .

HY-P11286

A7RC	Complement System	Cancer
A7RC is a multifunctional peptide used in tumor-targeted therapy, with Cysteine added to the C-terminal of the A7R peptide (sequence: ATWLPPR). A7R (HY-P1663) is a ligand of the NRP-1 receptor, regulating intracellular signal transduction related to tumor vascularization and tumor growth .

HY-126809A

Bz-Pro-Phe-Arg-pNA hydrochloride Bz-PFR-pNA hydrochloride	Factor Xa	Others
Bz-Pro-Phe-Arg-pNA (Bz-PFR-pNA) hydrochloride is a chromogenic peptide substrate for plasma and glandular Kallikrein, cysteine proteinase (Cruzipain) and Trypsin. Bz-Pro-Phe-Arg-pNA hydrochloride can be used in Factor XII assay .

HY-P1801

Cys-TAT(47-57) Cys-[HIV-Tat (47-57)]	HIV Drug Derivative	Others
Cys-TAT(47-57) (Cys-[HIV-Tat (47-57)]), TAT (HY-P0281) derivative, is a Cysteine (HY-Y0337)-tagged cell-penetrating peptide (CPP) derived from the HIV TAT protein. Cys-TAT(47-57) can be used for the research for the research of drug delivery .

HY-P2313

Human β-defensin-2 HβD-2	Antibiotic Bacterial	Infection
Human β-defensin-2 (HβD-2) is a small cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by a number of epithelial cells.Human β-defensin-2 has antimicrobial activity against gram-negative bacteria and Candida, but not gram-positive Staphylococcus aureus . Human β-defensin-2 can be used for the study of colitis .

HY-113110A

Cysteinylglycine TFA L-Cysteinylglycine TFA; Cys-Gly TFA; H-Cys-Gly-OH TFA	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis	Cardiovascular Disease Cancer
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) TFA is a dipeptide formed by the peptide bond connection of cysteine and glycine. Cysteinylglycine TFA is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine TFA can reduce trivalent iron to divalent iron, driving the redox cycle of iron, generating reactive oxygen species (ROS), stimulating oxidative reactions, inducing lipid peroxidation in human plasma LDL lipoproteins, and causing oxidative damage to DNA base. Cysteinylglycine TFA can be used as a biomarker to assess ischemic heart disease and breast cancer, etc ^[1][2][3][4].

HY-P4087B

Cys(Npys)-(Arg)9 acetate	HIV	Others
Cys(Npys)-(Arg)9 acetate is a synthetic cationic cell-penetrating peptide with a reversible thiol-reactive nitropyridyl (Npys) group. Cys(Npys)-(Arg)9 acetate efficiently mediates the internalization and delivery of various "cargo" such as proteins and antibodies by forming reversible disulfide bonds with surface-exposed cysteine residues. Cys(Npys)-(Arg)9 acetate endows TALEN proteins with cell-penetrating activity, enabling gene knockout in mammalian cells and protein transduction in wheat microspores. Cys(Npys)-(Arg)9 acetate can be conjugated with antibodies to form cationized IgG for enhancing endosomal escape of oligonucleotides, or form siRNA delivery complexes. When the molar ratio of Cys(Npys)-(Arg)9 acetate to loaded molecules is higher than 1:1, it exerts certain cytotoxic effects on cells. Cys(Npys)-(Arg)9 acetate can be used in studies related to oral squamous cell carcinoma and HIV infection .

HY-P11316

DBCO-tag peptide P1	Biochemical Assay Reagents Drug-Linker Conjugates for ADC	Others
DBCO-tag peptide P1 is a cysteine-containing peptide tag. DBCO-tag peptide P1 selectively reacts with dibenzocyclooctyne (DBCO) to yield stable dibenzocyclooctenyl thioethers. DBCO-tag peptide P1 enables site-selective mEGFP labeling and antibody (such as Trastuzumab (HY-P9907)) labelling without impairing the protein binding function. DBCO-tag peptide P1 can be used for ADC synthesis and mEGFP labeling research .

HY-159703

Glu-Cys Glutamyl-Cysteine; PSSGlu-Cys	Endogenous Metabolite	Others
Glu-Cys (Glutamyl-cysteine; PSSGlu-Cys) is a dipeptide composed of L-glutamic acid (HY-14608) and L-cysteine (HY-Y0337) joined by a peptide linkage .

HY-P11541

CTP-Cys	Amino Acid Derivatives	Others
CTP-Cys is a cysteine attached to CTP (HY-P4094) for peptide conjugation .

HY-P11414

Cys-flag peptide	ペプチド	Neurological Disease
Cys-flag peptide (CDYKDDDDK) is a FLAG tag peptide containing cysteine. Cys-flag peptide has a targeted interaction for protein purification and detection. Cys-flag peptide can be used for the research of neurological disease, such as Alzheimer’s disease .

HY-P5320

TAT-BH4 (Bcl-xL)	Apoptosis	Others
TAT-BH4 (Bcl-xL) localized mainly at the mitochondria, prevents apoptotic cell death. TAT-BH4 (Bcl-xL) is a fusion peptide that combines the N-terminal cysteine conjugated protein transduction domain of HIV TAT protein (amino acids 49 to 57) with the Bcl-xL BH4 peptide. TAT-BH4 can be used for research of diseases caused by accelerated apoptosis .

HY-P10428

E6AP-mimicking peptide	HPV	Infection
E6AP-mimicking peptide (compound 13) is a high-affinity, selective, irreversible and potent peptide-based covalent HPV16 E6 inhibitor targeting the 16E6 oncoprotein using a cysteine-reactive acrylamide warhead. E6AP-mimicking peptide has a K_i of 17 nM. E6AP-mimicking peptide targets all residues appearing in the binding pocket of E6 to disrupt the binding interface of 16E6 and E6AP. E6AP-mimicking peptide selectively binds and crosslinks to MBP-16E6 in PBS or a protein mixture .

HY-P4370

Hepcidin-20 (human)	Bacterial Fungal	Infection
Hepcidin-20 (human) is a histidine-containing, cysteine-rich, β-sheet structured peptide. Hepcidin-20 (human) shows antifungal activity. Hepcidin-20 (human) inhibits biofilm formation and bacterial cell metabolism of polysaccharide intercellular adhesin (PIA)-positive and PIA-negative strains .

HY-P11171

**Cysteine proteinase inhibitor peptide**	ペプチド	Others
Cysteine proteinase inhibitor peptide is a peptide that can be isolated form the culture media of Candida albicans with a molecular weight of 15 kDa and a PI of 4.9. Cysteine proteinase inhibitor peptide exhibits stability under both high temperature and a broad pH range .

HY-P5377

Abz-HPGGPQ-EDDnp Cathepsin K substrate	Ser/Thr Protease	Others
Abz-HPGGPQ-EDDnp (Cathepsin K substrate) is a biological active peptide. (Cathepsins are a class of globular lysosomal proteases, playing a vital role in mammalian cellular turnover. They degrade polypeptides and are distinguished by their substrate specificities. Cathepsin K is the lysosomal cysteine protease involved in bone remodeling and resorption. It has potential as a drug target in autoimmune diseases and osteoporosis.This FRET peptide can be used to monitor selectively cathepsin K activity in physiological fluids and cell lysates. Abz-HPGGPQ-EDDnp [where Abz represents o-aminobenzoic acid and EDDnp represents N -(2, 4-dinitrophenyl)-ethylenediamine], a substrate initially developed for trypanosomal enzymes, is efficiently cleaved at the Gly-Gly bond by cathepsin K. This peptide is resistant to hydrolysis by cathepsins B, F, H, L, S and V, Ex/Em=340 nm/420 nm.)

HY-P5071

EcAMP3	Bacterial	Infection
EcAMP3 is a hairpin-like peptide. EcAMP3 has antifungal and antibacterial activity. EcAMPs precursor family contains seven *identical cysteine* motifs**: C1XXXC2(11–13)C3XXXC4 .

HY-133975

Isoleucylcysteine	Bacterial	Metabolic Disease
Isoleucylcysteine, a dipeptide composed of isoleucine and cysteine, is an intermediate peptide in bacitracin biosynthesis .

HY-P3920

Cys-Kemptide	PKA	Cancer
Cys-Kemptide is a cysteine-terminated substrate peptide that can used to measure protein kinase A (PKA) activity .

HY-P6009

Cys-αvβ6-BP	Integrin	Cancer
Cys-αvβ6-BP is a cysteine-terminated αvβ6 binding peptide .

HY-P6009A

Cys-αvβ6-BP TFA	Integrin	Cancer
Cys-αvβ6-BP TFA is a cysteine-terminated αvβ6 binding peptide .

HY-126809

Bz-Pro-Phe-Arg-pNA Bz-PFR-pNA	Kallikrein Ser/Thr Protease Parasite Factor Xa	Others
Bz-Pro-Phe-Arg-pNA (Bz-PFR-pNA) is a chromogenic peptide substrate for plasma and glandular Kallikrein, cysteine proteinase (Cruzipain) and Trypsin. Bz-Pro-Phe-Arg-pNA can be used in Factor XII assay .

HY-P5439

Epsilon-V1-2, Cys-conjugated	PKC MARCKS	Others
Epsilon-V1-2, Cys-conjugated is a biological active peptide. (This peptide is the εPKC specific inhibitor. Its inhibitory activity is based on εPKC translocation and MARCKS phosphorylation. This peptide interferes with εPKC interaction with the anchoring protein εRACK. This peptide contains a cysteine residue added to the C-terminus for potential S-S bond formation with a carrier protein.Pyroglutamyl (pGlu) peptides may spontaneously form when either Glutamine (Q) or Glutamic acid (E) is located at the sequence N-terminus. The conversion of Q or E to pGlu is a natural occurrence and in general it is believed that the hydrophobic γ-lactam ring of pGlu may play a role in peptide stability against gastrointestinal proteases. Pyroglutamyl peptides are therefore considered a normal subset of such peptides and are included as part of the peptide purity during HPLC analysis.)

HY-P4095

NoxaBH3	CXCR	Cancer
NoxaBH3 is a cysteine-based cross-linked peptide with increased cell permeability and higher inhibitory activity against Mcl-1. NoxaBH3 binds to the endogenous CXCR4 ligand to produce ubiquitin-Noxabh3 conjugate. NoxaBH3 is then delivered to cancer cells .

HY-P5320A

TAT-BH4 (Bcl-xL) TFA	Apoptosis	Others
TAT-BH4 (Bcl-xL) TFA is localized mainly at the mitochondria, prevents apoptotic cell death. TAT-BH4 (Bcl-xL) is a fusion peptide that combines the N-terminal cysteine conjugated protein transduction domain of HIV TAT protein (amino acids 49 to 57) with the Bcl-xL BH4 peptide. TAT-BH4 TFA can be used for research of diseases caused by accelerated apoptosis .

HY-P11311

NC-002	Proteasome	Cancer
NC-002, a cell-permeable peptide, is a Trypsin-like proteasome inhibitor without inhibition of lysosomal cysteine proteases. NC-002 is the epoxyketone derivative of Leupeptin (HY-18234). NC-002 sensitizes myeloma cells to Bortezomib (HY-10227) and Carfilzomib (HY-10455). NC-002 can be used for cancers research .

HY-P10540

Pantinin-2	Bacterial	Infection
Pantinin-2 is a cysteine-free toxic peptide found in the emperor scorpion (paninus imperator). Pantinin-2 has high activity against Gram-positive bacteria but weak activity against Gram-negative bacteria. Pantinin-2 also exhibits activity against Candida tropicalis and has relatively mild hemolytic activity against human erythrocytes. Pantinin-2 can be used in the development of antimicrobial drugs for drug-resistant pathogens .

HY-P3436B

Cys-PCM	Connective Peptide	Cardiovascular Disease
Cys-PCM is a cardiomyocyte-targeting peptide (PCM) derived from WLSEAGPVVTVRALRGTGSW (HY-P3436) with a cysteine at the N-terminus for conjugation .

HY-P1876D

Cys-NLS	ペプチド	Others
Cys-NLS is a cysteine-containing nuclear localization signal peptide derived from the simian virus 40 large T antigen, which enhances nuclear import .

HY-P5151

LiTx3	ペプチド	Others
LiTx3 is a lethal and cysteine-rich peptide. LiTx3 can be isolated from L. intermedia crude venom. LiTx3 induces flaccid paralysis in Spodoptera frugiperda larvae .

HY-P0307B

Penetratin-Cys	Biochemical Assay Reagents	Neurological Disease
Penetratin-Cys is a cell-penetrating peptide derived from Antennapedia Peptide (HY-P0307) via C-terminal cysteine modification. Penetratin-Cys acts as a cytotoxin and reduces the viability of differentiated neuronal cells. Penetratin-Cys localizes to the perinuclear region and binds to the Golgi apparatus. Penetratin-Cys can be used in research related to neurological disorders .

HY-P11754

YIGSRC	ペプチド	Others
YIGSRC is a laminin-mimetic peptide. YIGSRC supports endothelial cell adhesion and tube formation. YIGSRC contains a cysteine residue for chemical modification to hydrogels via thiol-ene reaction. YIGSRC can be chemically modified onto hydrogels to improve in vitro vascularization .

HY-P11781

HW12	Drug Derivative	Cancer
HW12 is a random peptide containing an N-terminal cysteine and is not an EGFR ligand. HW12 can serve as a control for GE11 (HY-P10128)-conjugated mixed micelles targeting EGFR. HW12 is applicable to pancreatic cancer-related research .

HY-P3051A

CKS-17 (dimer)	Drug Derivative	Infection Inflammation/Immunology
CKS-17 (dimer) is the dimer of CKS-17 (HY-P3051). CKS-17 (dimer) can be prepared by introducing a naturally occurring cysteine at the carboxyl terminus and dimerizing via a cysteine-disulfide bond. CKS-17 is a synthetic retroviral envelope peptide. CKS-17 has a highly conserved amino acid sequence present in the transmembrane envelope proteins of numerous animal and human retroviruses. As an immunomodulatory epitope, CKS-17 exhibits inhibitory properties on a variety of immune functions .

HY-P5423D

Ahx-GALA-Cys	Exosomes	Others
Ahx-GALA-Cys is a GALA peptide (HY-P5423) derivative with an N-terminal 6-aminohexanoic acid (Ahx) linker and a C-terminal cysteine residue. Ahx-GALA-Cys possesses strong covalent coupling capacity, which can be used to conjugate fluorophores and targeting ligands for investigating the surface functionalization of small extracellular vesicles (sEV) and lysosomal escape .

HY-P4096C

Cys-scHAP-1	ペプチド	Inflammation/Immunology
Cys-scHAP-1 is an N-terminal cysteine-labeled disordered peptide of HAP-1. Cys-scHAP-1 can be used to construct scHAP-1-targeted liposomes, which bind to human and rabbit fibroblast-like synoviocytes and localize to inflamed joints in vivo in a rat adjuvant-induced arthritis model. Cys-scHAP-1 is applicable to arthritis research .

製品番号	製品名	Category	Target	構造式

HY-D0843

N-Ethylmaleimide 35+ Cited Publications NEM	Microorganisms Source Classification	Cathepsin Deubiquitinase Apoptosis
N-Ethylmaleimide (NEM) derives from maleic acid, it can alkylates free sulfhydryl. N-Ethylmaleimide is an irreversible cysteine protease inhibitor. N-ethylmaleimide specific inhibits phosphate transport in mitochondria. N-Ethylmaleimide inhibits prolyl endopeptidase with an IC₅₀ value of 6.3 μM. N-Ethylmaleimide can be used to modify cysteine residues in proteins and peptides .

HY-113110

Cysteinylglycine L-Cysteinylglycine; Cys-Gly; H-Cys-Gly-OH	天然物 Human Gut Microbiota Metabolites Microorganisms Disease markers Endocrine diseases Metabolic Disease Nervous System Disorder Endogenous metabolite Disease Research Fields Source Classification	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) is a dipeptide formed by the peptide bond linkage between cysteine (Cysteine) and glycine (Glycine). Cysteinylglycine is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine reduces ferric iron to ferrous iron, drives the redox cycle of iron, generates reactive oxygen species (ROS), stimulates oxidative reactions, induces lipid peroxidation of human plasma LDL lipoproteins, and causes oxidative damage to DNA bases. Cysteinylglycine can be used as a biomarker to evaluate ischemic heart disease, breast cancer and other conditions .

HY-113110A

Cysteinylglycine TFA L-Cysteinylglycine TFA; Cys-Gly TFA; H-Cys-Gly-OH TFA	Structural Classification 天然物 Classification of Application Fields Metabolic Disease Endogenous metabolite Disease Research Fields Source Classification	Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis
Cysteinylglycine (L-Cysteinylglycine; Cys-Gly) TFA is a dipeptide formed by the peptide bond connection of cysteine and glycine. Cysteinylglycine TFA is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine TFA can reduce trivalent iron to divalent iron, driving the redox cycle of iron, generating reactive oxygen species (ROS), stimulating oxidative reactions, inducing lipid peroxidation in human plasma LDL lipoproteins, and causing oxidative damage to DNA base. Cysteinylglycine TFA can be used as a biomarker to assess ischemic heart disease and breast cancer, etc ^[1][2][3][4].

HY-113110R

Cysteinylglycine (Standard) L-Cysteinylglycine (Standard); Cys-Gly (Standard); H-Cys-Gly-OH (Standard)	天然物 Human Gut Microbiota Metabolites Microorganisms Disease markers Endocrine diseases Nervous System Disorder Endogenous metabolite Source Classification	Reference Standards Endogenous Metabolite Reactive Oxygen Species (ROS) DNA/RNA Synthesis
Cysteinylglycine (Standard) is the analytical standard of Cysteinylglycine. This product is intended for research and analytical applications. Cysteinylglycine is a dipeptide formed by the peptide bond linkage between cysteine (Cysteine) and glycine (Glycine). Cysteinylglycine is an important metabolic intermediate in the human body, mainly derived from the degradation of glutathione (GSH). Cysteinylglycine reduces ferric iron to ferrous iron, drives the redox cycle of iron, generates reactive oxygen species (ROS), stimulates oxidative reactions, induces lipid peroxidation of human plasma LDL lipoproteins, and causes oxidative damage to DNA bases. Cysteinylglycine can be used as a biomarker to evaluate ischemic heart disease, breast cancer and other conditions .

製品番号	製品名		Classification

HY-151696

TCO-PEG3-maleimide		TCO
TCO-PEG3-maleimide (TCO-PEG3-NEM) is a click chemistry reagent. TCO-PEG3-maleimide efficiently binds TCO (trans-cyclooctene) moiety to thiol-containing molecules (such as antibodies, cysteine-containing peptides) .

製品番号	製品名		Classification

HY-177205

DSPE-PEG2000-CRPPR		Pegylated Lipids
DSPE-PEG2000-CRPPR is a polyethylene glycol (PEG) conjugate composed of DSPE and Heart-homing peptide (CRPPR) (HY-P10641). DSPE-PEGs are modified with the CRPPR peptide to bind cysteine-rich protein 2 (CRIP2) as well as FITC-labeled superparamagnetic iron oxide nanoparticles .

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