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Results for "

Cysteine peptide

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Amyloid-β (1) ADC Linker (2) Amino Acid Derivatives (1) Antibiotic (2) Apoptosis (3) Bacterial (6) Biochemical Assay Reagents (4) Cathepsin (1) CXCR (1) Deubiquitinase (1) Endogenous Metabolite (1) Fluorescent Dye (3) Fungal (1) HIV (1) HPV (1) Integrin (2) MARCKS (1) PKA (1) PKC (1) Radionuclide-Drug Conjugates (RDCs) (1)
By Research Areas:	Cancer (7) Cardiovascular Disease (1) Infection (9) Inflammation/Immunology (3) Metabolic Disease (1) Neurological Disease (1)
Click Chemistry:	TCO (1)

Inhibitors & Agonists

Fluorescent Dye

Peptides

Natural
Products

Click Chemistry

Targets Recommended: Formyl Peptide Receptor (FPR) ASCT CGRP Receptor Amyloid-β

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-W087027

Maleimide-NOTA	Radionuclide-Drug Conjugates (RDCs) Others	Cancer
Maleimide-NOTA is a chelator for the labeling of peptides and antibodies. Maleimide-NOTA can react with cysteine .

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-P10533

**Cysteine peptide**	Biochemical Assay Reagents	Others
Cysteine peptide is a heptapeptide containing a cysteine residue whose thiol group makes it susceptible to a range of oxidative modifications. Cysteine peptide is used to detect the skin sensitization potential of chemicals including cosmetic ingredients .

HY-137199

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

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-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-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-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-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-D0843

N-Ethylmaleimide 10+ 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-150242A

Cbz-Ala-Ala-Asn TFA	Others	Others
Cbz-Ala-Ala-Asn TFA is a peptide that designed based on the sequence of the substrate of legumain. Legumain is a cysteine protease. Cbz-Ala-Ala-Asn TFA can be applied as a scaffold for drug delivery .

HY-114174

Fmoc-Ala-Glu-Asn-Lys-NH2	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-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-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-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-D2381

AF 488 maleimide	Fluorescent Dye	Others
AF 488 maleimide is a thiol-reactive dye for labeling of protein SH groups, and it can be used to attach AF 488 fluorophore to proteins and peptides containing cysteine residues, as well as to other thiolated molecules. AF488 exhibits the λ_em and λ_ex wavelength of 520 nm and 470 nm, respectively .

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-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-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-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-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-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-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-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-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-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-D0098

Fluorescein-5-maleimide 3 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 .

Cat. No.	Product Name	Type

HY-D1423

Dibromobimane	Fluorescent Dyes/Probes
Dibromobimane is a thiol-selective fluorescent imaging agent. Dibromobimane is used to crosslink cysteine- and homocysteine-containing peptides .

HY-D2381

AF 488 maleimide	Fluorescent Dyes/Probes
AF 488 maleimide is a thiol-reactive dye for labeling of protein SH groups, and it can be used to attach AF 488 fluorophore to proteins and peptides containing cysteine residues, as well as to other thiolated molecules. AF488 exhibits the λ_em and λ_ex wavelength of 520 nm and 470 nm, respectively .

HY-D0098

Fluorescein-5-maleimide 3 Publications Verification N-(5-Fluoresceinyl)maleimide	Fluorescent Dyes/Probes
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 .

Fluorescein-5-maleimide

3 Publications Verification

N-(5-Fluoresceinyl)maleimide

Fluorescent Dyes/Probes

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 .

Cat. No.	Product Name	Target	Research Area