64 Results for "

Protein thiol groups

" in MedChemExpress (MCE) Product Catalog:
Products (64)

64 Results for "Protein thiol groups" in MCE Product Catalog:

2
2 Cited Publications
Cat. No.: HY-15941
CAS No.: 27072-45-3
Synonyms: Fluorescein 5(6)-isothiocyanate; Fluorescein isothiocyanate 5- and 6- isomers
5(6)-FITC (Fluorescein 5(6)-isothiocyanate) is an amine-reactive derivative of a fluorescent dye, characterized by high absorbance and excellent fluorescence quantum yield. The isothiocyanate group of FITC can react with various functional groups on proteins, including amines, thiols, imidazoles, tyrosines and carbonyls, enabling the labeling of proteins such as antibodies and lectins. 5(6)-FITC has a wide range of applications, including flow cytometry, immunofluorescence, protease assays and conjugation. The maximum excitation/emission wavelengths are 492/518 nm .
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1
1 Cited Publications
Cat. No.: HY-138200
CAS No.: 1437796-65-0
Purity:  99.43%
Synonyms: Cyanine5 maleimide
Cy5 maleimide (Cyanine5 maleimide) is a single-reactive dye containing a maleimide group and a CY5 fluorescent group, which can selectively couple with a thiol group. Cy5 maleimide can be used to label antibodies, peptides, or proteins (Ex/Em = 646/664 nm).
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1
1 Cited Publications
Cat. No.: HY-12638
CAS No.: 97-23-4
Purity:  98.55%
Synonyms: DDM
Research Areas:  

Infection

Dichlorophen is a chlorophenol antimicrobial agent that can destroy the integrity of microbial cell membranes and interfere with the activity of metabolic enzymes. Dichlorophen can covalently bind to the thiol groups of microbial proteins and has broad-spectrum antibacterial, antifungal and anthelmintic activity. Dichlorophen can be used as an antimicrobial agent in the study of drug-resistant bacterial infections .
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Cat. No.: HY-NP008
CAS No.: 9045-23-2
β-Lactoglobulin, a major whey protein, is a small globular protein from the lipocalin family. β-Lactoglobulin is an important source of the essential and branched-chain amino acids (leucine, isoleucine, and valine). β-Lactoglobulin shows antioxidant properties, because it contains two disulfide bonds and one free thiol group. β-Lactoglobulin is a ligand transport agent. β-Lactoglobulin is one of the major allergens in milk and can be utilized in the research for developing safe hypoallergenic dairy products .
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Cat. No.: HY-D2906
CAS No.: 1825332-75-9
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 .
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Cat. No.: HY-W998680
CAS No.: 2228857-33-6
Synonyms: 5-FITC-Maleimide
Fluorescein-maleimide (5-FITC-Maleimide) is a thiol-reactive fluorescent derivatization reagent and non-specific protein labeling reagent. Fluorescein-maleimide covalently binds to protein thiol groups for protein labeling. Fluorescein-maleimide covalently binds to protein amino and imidazole groups under neutral pH conditions. Fluorescein-maleimide is used for fluorescent labeling of proteins, nucleic acids or other molecules containing one or more thiol groups (Ex/Em = 494/519 nm) .
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Cat. No.: HY-D2381
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) .
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Cat. No.: HY-D1390A
CAS No.: 2130955-10-9
Synonyms: Sulfo-cyanine5 maleimide
Sulfo-Cy5-Mal is a fluorescent dye derivative composed of a CY5 dye and a maleimide functional group. Sulfo-Cy5-Mal specifically covalently binds to thiol-containing (-SH) biomolecules. Sulfo-Cy5-Mal can be used for protein labeling, antibody conjugation, molecular imaging, and drug delivery studies (Ex/Em = 633 nm/670 nm) .
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Cat. No.: HY-118380
CAS No.: 39628-94-9
Purity:  98.78%
Synonyms: 4-Nitrobenzyl mesylate; para-Nitrobenzyl mesylate; PNBM
p-Nitrobenzyl mesylate (4-Nitrobenzyl mesylate) is an alkylating reagent. p-Nitrobenzyl mesylate alkylates thiophosphorylated serine, threonine, tyrosine residues and cysteine thiols, without modifying hydroxyl, amino or carboxylic acid functional groups. p-Nitrobenzyl mesylate generates thiophosphate epitopes on thiophosphorylated substrate proteins for recognition by thiophosphate-specific antibodies. p-Nitrobenzyl mesylate facilitates the identification and purification of kinase substrates. p-Nitrobenzyl mesylate is applicable to studies related to cerebral ischemia-reperfusion injury .
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Cat. No.: HY-137541
CAS No.: 30211-77-9
Purity:  98.44%
Synonyms: NTCB
Research Areas:  

Others

2-Nitro-5-thiocyanatobenzoic acid (NTCB) is a highly reactive reagent that transfers its cyano group rapidly to a nucleophilic thiolate. 2-Nitro-5-thiocyanatobenzoic acid has been proposed as a reagent for converting thiol groups in proteins into their S-cyano derivatives .
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Cat. No.: HY-D1871
CAS No.: 1838643-41-6
Cy3 maleimide chloride is a dye derivative of Cyanine 3 (Cy3) (HY-D0822) containing maleimide functional groups. Cy3 is a fluorescent dye with a fluorescence spectrum typically in the green to orange wavelength range. The alkyne functional group of Cy3 maleimide chloride can undergo a "thiol-acrylamide" reaction with molecules containing sulfur-oxygen functional groups to form covalent bonds. Cy3 maleimide chloride can bind to biological molecules such as proteins and antibodies to track their location and dynamic changes in biological samples.
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Cat. No.: HY-W106411
CAS No.: 71865-37-7
Synonyms: Dithio-bis-maleimidoethane
Research Areas:  

Others

DTME (dithio-bis-maleimidoethane) is a homobifunctional, maleimide crosslinker specifically designed for conjugation between sulfhydryl groups (-SH). DTME, whose molecular structure consists of two maleimide groups connected by an ethylene disulfide bridge, can specifically react with thiol - containing molecules (such as cysteine residues) to form stable covalent bonds. DTME allows crosslinks that can be cleaved with reducing agents such as DTT (HY-15917). DTME is commonly utilized to explore and characterize protein structure, particularly oligomerization, or protein interactions .
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Cat. No.: HY-D2498
Cy7 maleimide is a fluorescent dye containing a Maleimide (HY-W007324) functional group. Maleimide can be used to label thiol groups on antibodies, proteins and peptides .
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Cat. No.: HY-W012166
CAS No.: 42014-51-7
Synonyms: NHS-Bromoacetate
Research Areas:  

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 .
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Cat. No.: HY-D1305
CAS No.: 1443553-08-9
Target:  

Fluorescent Dye

Research Areas:  

Others

ATTO 488 carboxylic acid is a bright green fluorescent dye with high photostability, which is commonly used in protein fluorescent labeling, single-molecule fluorescence imaging and super-resolution microscopy studies. The carboxylic acid form of ATTO 488 can be covalently coupled to primary amines of proteins via activation, or prepared into a maleimide derivative for coupling with thiol groups; it emits green fluorescence after labeling. Ex/Em = 488/524 nm .
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Cat. No.: HY-W879048
CAS No.: 2924872-84-2
Research Areas:  

Others

DBCO-PEG24-Maleimide is a bioconjugation reagent. DBCO-PEG24-Maleimide contains a DBCO group, a maleimide group, and a PEG segment with 24 repeating units. DBCO-PEG24-Maleimide mediates strain-promoted azide-alkyne cycloaddition and maleimide-thiol conjugation reactions, thereby conjugating SpCas9 variants to DN1S and IPP2 protein domains .
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Cat. No.: HY-P4087
CAS No.: 1417221-06-7
Target:  

HIV

Research Areas:  

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 .
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Cat. No.: HY-W020780D
mPEG40000-Mal is a thiol-reactive PEG derivative that can be used to selectively modify proteins, peptides, or any other surface with available thiol groups .
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Cat. No.: HY-D1260
Synonyms: PSH-red
FM-red (PSH-red) is a red-emitting and environment-sensitive probe for selectively detecting and labeling protein thiols. FM-red can be used to image protein sulfhydryl groups in live cells and in vivo. FM-red also could be used to measure of the redox states of thioredoxin (Trx) .
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Cat. No.: HY-W1048851B
CAS No.: 1349099-55-3
Synonyms: 4-Arm-PEG10000-Mal
4-Arm-PEG10000-Maleimide (4-Arm-PEG10000-Mal) is a four-arm star-shaped multifunctional PEG crosslinker with an average molecular weight of 10 kDa and maleimide terminal groups. 4-Arm-PEG10000-Maleimide efficiently conjugates biomolecules via thiol-Michael reaction, and is widely used in protein modification, antibody-drug conjugation and biomaterial preparation .
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