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Cysteine peptide

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34

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3

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25

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Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-W087027
    Maleimide-NOTA

    		Radionuclide-Drug Conjugates (RDCs) Cancer
    Maleimide-NOTA is a chelator for the labeling of peptides and antibodies. Maleimide-NOTA can react with cysteine .
    Maleimide-NOTA
  • HY-W736950A
    H-L-Cys(MDNPE)-OH hydrochloride

    		Others Others
    H-L-Cys(MDNPE)-OH hydrochloride is a cysteine ​​derivative with a short peptide sequence attached to the thiol group of cysteine.
    H-L-Cys(MDNPE)-OH hydrochloride
  • HY-D1423
    Dibromobimane

    		Fluorescent Dye Others
    Dibromobimane is a thiol-selective fluorescent imaging agent. Dibromobimane is used to crosslink cysteine- and homocysteine-containing peptides .
    Dibromobimane
  • 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 .
    Cysteine peptide
  • HY-137199
    Pro-Phe-Arg-AMC

    		Biochemical Assay Reagents Others
    Pro-Phe-Arg-AMC is a synthetic peptide substrate of Cysteine peptidases (CPs) .
    Pro-Phe-Arg-AMC
  • 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 .
    EcAMP3
  • 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 .
    Cys(Npys)-TAT (47-57)
  • 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 .
    Human α-Defensin 6
  • 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
    Cys-V5 Peptide
  • HY-P3920
    Cys-Kemptide

    		PKA Cancer
    Cys-Kemptide is a cysteine-terminated substrate peptide that can used to measure protein kinase A (PKA) activity .
    Cys-Kemptide
  • HY-P6009
    Cys-αvβ6-BP

    		Integrin Cancer
    Cys-αvβ6-BP is a cysteine-terminated αvβ6 binding peptide .
    Cys-αvβ6-BP
  • HY-P6009A
    Cys-αvβ6-BP TFA

    		Integrin Cancer
    Cys-αvβ6-BP TFA is a cysteine-terminated αvβ6 binding peptide .
    Cys-αvβ6-BP TFA
  • 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 .
    Fmoc-HoCys(ACM)-OH
  • HY-D0843
    N-Ethylmaleimide
    15+ 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 .
    N-Ethylmaleimide
  • 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 .
    Cbz-Ala-Ala-Asn TFA
  • 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 .
    Fmoc-Ala-Glu-Asn-Lys-NH2
  • 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 .
    CL2A
  • 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) .
    TCO-PEG3-maleimide
  • 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.)
    Epsilon-V1-2, Cys-conjugated
  • 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 .
    NoxaBH3
  • 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 λem and λex wavelength of 520 nm and 470 nm, respectively .
    AF 488 maleimide
  • 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 .
    CL2A TFA
  • 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 .
    TAT-BH4 (Bcl-xL)
  • 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 .
    TAT-BH4 (Bcl-xL) (TFA)
  • 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 Ki 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 .
    E6AP-mimicking peptide
  • HY-P5378
    Ac-KQKLR-AMC

    Cathepsin S substrate

    		 Ser/Thr Protease Others
    Ac-KQKLR-AMC (Cathepsin S 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 S is a cysteine proteinase involved in the pathogenesis of autoimmune diseases, atherosclerosis, cancer, obesity and related diseases.This peptide is a cathepsin S substrate fluorescently labeled with AMC (Ex/Em=354 nm/442 nm). It can be used to measure cathepsin S activity.)
    Ac-KQKLR-AMC
  • 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 .
    Human β-defensin-1
  • 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 .
    Hepcidin-20 (human)
  • 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 .
    Picornain 3C
  • 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 .
    IgdE protease
  • 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 .
    Human β-defensin-2
  • 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 .
    Pantinin-2
  • 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.)
    Abz-HPGGPQ-EDDnp
  • 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 .
    Fluorescein-5-maleimide

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