74 Results for "

covalent modification

" in MedChemExpress (MCE) Product Catalog:
Products (74)

74 Results for "covalent modification" in MCE Product Catalog:

35
35 Publications Verification
Cat. No.: HY-N0191
CAS No.: 5508-58-7
Synonyms: Andrographis
Andrographolide is a NF-κB inhibitor, which inhibits NF-κB activation through covalent modification of a cysteine residue on p50 in endothelial cells without affecting IκBα degradation or p50/p65 nuclear translocation. Andrographolide has antiviral effects.
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25
25 Cited Publications
Cat. No.: HY-16909
CAS No.: 87081-35-4
Synonyms: CI 940; LMB
Target:  

CRM1 Fungal Antibiotic

Research Areas:  

Infection Cancer

Leptomycin B (CI 940; LMB) is a potent inhibitor of the nuclear export of proteins. Leptomycin B inactivates CRM1/exportin 1 by covalent modification at a cysteine residue. Leptomycin B is a potent antifungal antibiotic blocking the eukaryotic cell cycle .
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5
5 Cited Publications
Cat. No.: HY-128892
CAS No.: 1808714-73-9
Purity:  99.42%
Target:  

Autophagy

Research Areas:  

Neurological Disease

EN6 is a small-molecule in vivo autophagy activator that covalently targets cysteine 277 in the ATP6V1A subunit of the lysosomal v-ATPase. EN6-mediated modification of ATP6V1A uncouples v-ATPase from Rag, leading to inhibition of mTORC1 signalling, increased lysosomal acidification, and activation of autophagy. EN6 also scavenges TDP-43 aggregates (causative agents of frontotemporal dementia) in a lysosome-dependent manner .
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4
4 Cited Publications
Cat. No.: HY-128661
CAS No.: 2244895-42-7
Purity:  99.40%
Research Areas:  

Metabolic Disease

IDH1 Inhibitor 2 (compound 13) is a potent wild-type IDH1 inhibitor that exerts its activity through covalent modification of His315 with an IC50 value of 110 nM. IDH1 Inhibitor 2 can dose-dependently reduce the intracellular reduced glutamine metabolic flux, thereby affecting cellular metabolic homeostasis. IDH1 Inhibitor 2 can be used to study the role of IDH1 in cellular metabolic regulation and cancer development .
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2
2 Cited Publications
Cat. No.: HY-13943
CAS No.: 1202759-32-7
Purity:  99.92%
Target:  

Btk

Research Areas:  

Cancer

CNX-774 is an orally active, irreversible and selective BTK inhibitor, with an IC50 of < 1 nM. CNX-774 specifically targets Cysteine 481 of Btk for covalent modification .
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1
1 Cited Publications
Cat. No.: HY-124700
CAS No.: 1966129-74-7
LYPLAL1-IN-1 (compound 11) is a selective, covalent, and irreversible inhibitor of the lysophospholipase-like enzyme LYPLAL1 (IC50 = 6 nM). LYPLAL1-IN-1 shows selectivity against other serine hydrolases such as carboxylesterase CES1 (IC50 > 50 μM for CES1). LYPLAL1-IN-1 inhibits the depalmitoylation function of LYPLAL1, blocking its depalmitoylation modification of cyclic GMP-AMP synthase (cGAS), thereby promoting cGAS dimerization and activation, and initiating the cGAS-STING pathway-mediated innate immune response. LYPLAL1-IN-1 can enhance DNA-induced type I interferon production, upregulate PD-L1 expression in tumor cells, and promote the accumulation of tumor-infiltrating CD8 + T cells, with the core function of strengthening the anti-tumor immune response. LYPLAL1-IN-1 is primarily used in tumor immunology research, especially in combination with PD-1/PD-L1 inhibitors .
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1
1 Cited Publications
Cat. No.: HY-145733
CAS No.: 2247061-09-0
Purity:  99.62%
DI-1859 is a DCN1 and cullin 3 inhibitor with a Ki of <1 nM against human DCN1. DI-1859 forms a covalent bond with Cys115 of DCN1, cleaves its dimethylamino group, disrupts the DCN1-UBC12 interaction, and selectively inhibits the neddylation modification of cullin 3 relative to other cullins. DI-1859 inactivates CRL3, promotes the accumulation of NRF2 and SLC7A11, upregulates the expression of HO-1 and NQO1, reduces reactive oxygen species (ROS) levels, enhances insulin signaling, promotes insulin secretion, activates RhoA, regulates the phosphorylation of AKT, without completely blocking the neddylation modification of cullin 3 or restoring the expression of IRS-1. DI-1859 can be used in the research of Acetaminophen (HY-66005)-induced hepatotoxicity, hyperglycemia, metabolic dysfunction-associated steatotic liver disease, insulin resistance, breast cancer and lung cancer .
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1
1 Cited Publications
Cat. No.: HY-121539
CAS No.: 70351-51-8
Purity:  98.35%
Target:  

TRP Channel

Research Areas:  

Neurological Disease

Supercinnamaldehyde is a potent transient receptor potential ankyrin 1 (TRPA1) activator with an EC50 value of 0.8 μM. Supercinnamaldehyde activates TRPA1 ion channels through covalent modification of cysteines .
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1
1 Cited Publications
Cat. No.: HY-148775B
Purity:  ≥95.0%
PLGA-PEG-MAL (20KDA-5.0KDA, LA:GA RATIO 40:60) is a biodegradable amphipathic polymeric nanocarrier of poly (lactic-co-glycolic acid)-block-poly (ethylene glycol) (PLGA-PEG-Mal) that allows covalent modification of functional molecules. PLGA-PEG-MAL (20KDA-5.0KDA, LA:GA RATIO 40:60) modified with Angiopep-2 can cross the blood-brain barrier and exhibits targeting selectivity for glioblastoma cells. PLGA-PEG-MAL (20KDA-5.0KDA, LA:GA RATIO 40:60) can capture tumor-derived protein antigens, and exerts immunomodulatory effects when conjugated with anti-OX40 antibody; when used in combination with A2-CL/Dbait nanoparticles and radiotherapy, it prolongs survival time and reduces tumor volume in glioblastoma mouse models. PLGA-PEG-MAL (20KDA-5.0KDA, LA:GA RATIO 40:60) can be used for studies related to bacterial wound infections and glioblastoma .
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Cat. No.: HY-Y1353
CAS No.: 24424-99-5
Research Areas:  

Others Metabolic Disease

Di-tert-butyl dicarbonate (tBOC) is a covalent modification agent for hydroxyl groups (-OH) on the chitosan molecular chain. Di-tert-butyl dicarbonate selectively modifies chitosan and stabilizes the material structure through hydrophobic encapsulation. Di-tert-butyl dicarbonate reacts with the -OH groups of chitosan to form a hydrophobic layer, and in conjunction with triethylamine (TEA), removes trifluoroacetic acid (TFA) salts produced during the electrospinning process, preserving the nanofiber structure and high porosity of the membrane, and improving the material's cytocompatibility and mineralization-promoting ability. Di-tert-butyl dicarbonate can be used in research in the field of guided bone regeneration (GBR) .
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Cat. No.: HY-164899
CAS No.: 2765091-45-8
Synonyms: 2-aminopyridine-3-carboxylic acid imidazolide
Target:  

DNA/RNA Synthesis

Research Areas:  

Infection

2A3 (2-aminopyridine-3-carboxylic acid imidazolide) is a covalent probe reagent for Selective 2'-Hydroxyl Acylation analyzed by Primer Extension (SHAPE) that targets the RNA ribose 2'-OH group. 2A3 efficiently permeates the biological membranes of Gram-negative bacteria, Gram-positive bacteria, and mammalian cells. 2A3 exhibits no base bias and specifically labels conformationally flexible, unpaired regions within RNA. 2A3 forms covalent adducts by acylating the 2'-OH groups of flexible RNA residues. When combined with SHAPE-MaP (mutational profiling) sequencing technology, these modification sites are converted into detectable mutational signals, thereby accurately reflecting local RNA backbone flexibility and base-pairing status. 2A3 is primarily utilized in molecular biology and transcriptomics research, including the resolution of RNA structuromes in living cells, the study of RNA folding regulatory mechanisms, and the investigation of non-coding RNA functions .
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Cat. No.: HY-155882
CAS No.: 80506-64-5
Synonyms: mPEG750-NH2
mPEG750-amine (mPEG750-NH2) is a chemical modification reagent for nanoparticles, capable of covalently binding to Ad-PVA to form Ad-PVA-PEG polymers. mPEG750-amine stabilizes gene delivery complexes by providing steric hindrance, reducing particle aggregation, while enhancing the water solubility and serum stability of the complex, reducing carrier cytotoxicity, and assisting in the efficient condensation of pDNA by cationic components to form nanoparticles that can be endocytosed by cells. mPEG750-amine can also be used to synthesize folate-conjugated polymer micelles for encapsulating the anticancer agent Camptothecin (HY-16560). Folate-conjugated polymer micelles are effective carriers for poorly soluble anticancer drugs, capable of avoiding macrophages and acting through folate receptor (FR)-mediated endocytosis to target tumor cells. mPEG750-amine can be applied to research in the field of non-viral gene delivery, as a component of gene delivery vectors, facilitating the safe and efficient delivery of nucleic acid drugs to target cells .
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Cat. No.: HY-128522
CAS No.: 2436544-27-1
Purity:  99.59%
Target:  

Ras

Research Areas:  

Cancer

ARS-1323-alkyne is a covalent inhibitor probe that covalently binds to the Switch-II pocket (S-IIP) of the KRAS G12C mutant protein. ARS-1323-alkyne visualizes the covalent modification of KRAS G12C and quantitatively measures the binding efficiency of the inhibitor to the target. ARS-1323-alkyne can be used to validate the target occupancy of KRAS G12C inhibitors and the synergistic mechanism of combination therapy .
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Cat. No.: HY-134222A
CAS No.: 16354-58-8
Purity:  ≥98.0%
Synonyms: N-Acetyl-L-serine
N-Acetylserine (N-Acetyl-L-serine) is a complement pathway modulator targeting activated third complement protein (C3b) and an amino-terminal residue (an N-terminal acetylation modification group). N-Acetylserine reacts with the exposed thioester group of C3b via its hydroxyl group, thereby blocking the covalent binding of glycerol to this thioester group. N-Acetylserine widely exists in soluble proteins of mammalian cells (accounting for approximately 80% of such proteins). N-Acetylserine has a blocking property that prevents direct Edman sequencing of proteins; deblocking is achievable through trifluoroacetic acid-catalyzed N→O acetyl migration followed by β-elimination. N-Acetylserine is suitable for sequencing of proteins with N-terminal acetylserine modification .
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Cat. No.: HY-126192
CAS No.: 566169-93-5
Purity:  ≥95.0%
Synonyms: PiB; 6-OH-BTA-1
Pittsburgh Compound B (PiB) is a blood-brain barrier-permeable, specific deposition PET tracer that binds to Aβ(1-40) fibrils with a Ki value of 678.4 nM. Through click chemical modification (a clickable Pittsburgh Compound B derivative is prepared by introducing a PEG3 linker and an alkynyl group at the 6-hydroxy site of Pittsburgh Compound B, followed by covalent conjugation with azide-labeled fluorescent dyes or affinity tags via copper-catalyzed azide-alkyne cycloaddition (CuAAC)), Pittsburgh Compound B and its conjugates can be used for fluorescence imaging, ultrastructural studies, and enrichment and characterization of Aβ complexes. Pittsburgh Compound B is applicable to Alzheimer's disease research .
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Cat. No.: HY-U00447
CAS No.: 38275-34-2
Research Areas:  

Cancer

PK11000 is an alkylating agent, and stabilizes the DNA-binding domain of both WT and mutant p53 proteins by covalent cysteine modification without compromising DNA binding. PK11000 has anti-tumor activities .
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Cat. No.: HY-N0191R
CAS No.: 5508-58-7
Synonyms: Andrographis (Standard)
Andrographolide (Standard) is the analytical standard of Andrographolide. This product is intended for research and analytical applications. Andrographolide is a NF-κB inhibitor, which inhibits NF-κB activation through covalent modification of a cysteine residue on p50 in endothelial cells without affecting IκBα degradation or p50/p65 nuclear translocation. Andrographolide has antiviral effects.
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Cat. No.: HY-W093017
CAS No.: 626-61-9
Research Areas:  

Others

4-Chloropyridine is a NNMT (Nicotinamide N-methyltransferase) substrate and suicide inhibition-based protein labeling scaffold precursor.4-Chloropyridine undergoes NNMT-catalyzed pyridine nitrogen methylation to increase C4 electrophilicity, enabling aromatic nucleophilic substitution by NNMT cysteine C159 for covalent NNMT modification and inactivation.4-Chloropyridine can be used for the research of various cancers .
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Cat. No.: HY-P10940
CAS No.: 845727-63-1
Target:  

Peptides

Research Areas:  

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 .
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Cat. No.: HY-148775A
CAS No.: 743423-15-6
MPEG-PLGA (21500-26500) is a biodegradable amphipathic polymeric nanocarrier of poly (lactic-co-glycolic acid)-block-poly (ethylene glycol) (PLGA-PEG-Mal) that allows covalent modification of functional molecules. MPEG-PLGA (21500-26500) modified with Angiopep-2 can cross the blood-brain barrier and exhibits targeting selectivity for glioblastoma cells. MPEG-PLGA (21500-26500) can capture tumor-derived protein antigens, and exerts immunomodulatory effects when conjugated with anti-OX40 antibody; when used in combination with A2-CL/Dbait nanoparticles and radiotherapy, it prolongs survival time and reduces tumor volume in glioblastoma mouse models. MPEG-PLGA (21500-26500) can be used for studies related to bacterial wound infections and glioblastoma .
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