Peptides

OVA Peptide(257-264) TFA is a class I (Kb)-restricted peptide epitope of OVA, an octameric peptide can be from ovalbumin presented by the class I MHC molecule, H-2Kb.

Endothelin 1 (swine, human) is a synthetic peptide with the sequence of human and swine Endothelin 1, which is a potent endogenous vasoconstrictor. Endothelin 1 acts through two types of receptors ETA and ETB.

N-Formyl-Met-Leu-Phe (fMLP; N-Formyl-MLF) is a chemotactic peptide and a specific ligand of N-formyl peptide receptor (FPR). N-Formyl-Met-Leu-Ph is reported to inhibit TNF-alpha secretion.

OVA Peptide (323-339) represents a T and B cell epitope of Ovalbumin (Ova), which is important in the generation and development of immediate hypersensitivity responses in BALB/c mice.

SN50 is a cell permeable inhibitor of NF-κB translocation.

Bradykinin is an active peptide that is generated by the kallikrein-kinin system. It is a inflammatory mediator and also recognized as a neuromediator and regulator of several vascular and renal functions.

NIM811 ((Melle-4)cyclosporin; SDZ NIM811) is an orally bioavailable mitochondrial permeability transition and cyclophilin dual inhibitor, which exhibits potent in vitro activity against hepatitis C virus (HCV) .

Cardiotoxin Analog (CTX) IV (6-12) is a part peptide of Cardiotoxin Analog (CTX) IV. Cardiotoxin analogues IV isolated from the venom of Taiwan Cobra. CTX IV is an unique snake venom cardiotoxin.

Retatrutide (LY3437943) is a triple agonist peptide of the glucagon receptor (GCGR), glucosedependent insulinotropic polypeptide receptor (GIPR), and glucagon-like peptide-1 receptor (GLP-1R). Retatrutide binds human GCGR, GIPR, and GLP-1R with EC50 values of 5.79, 0.0643 and 0.775 nM, respectively. Retatrutide can be used for the research of obesity.

TRAP-6 (PAR-1 agonist peptide), a peptide fragment, is a selective protease activating receptor 1 (PAR1) agonist. TRAP-6 activates human platelets via the thrombin receptor. TRAP-6 shows no activity at PAR4.

A 779 is a specific antagonist of G-protein coupled receptor (Mas receptor), which is an Ang1-7 receptor distinct from the classical AngII.

PMX-53 (3D53) is a synthetic peptidic and a potent and orally active complement C5a receptor (CD88) antagonist with an IC50 of 20 nM. PMX-53 is also a low-affinity MrgX2 agonist that stimulates MrgX2-mediated mast cell degranulation. PMX-53 specifically binds to C5aR1 and does not bind to the second C5aR (C5L2) and C3aR. PMX-53 has anti-inflammatory, anticancer and antiatherosclerotic effects.

DAMGO is a μ-opioid receptor (μ-OPR ) selective agonist with a Kd of 3.46 nM for native μ-OPR.

Aureobasidin A (Basifungin), a cyclic depsipetide, is an antifungal antibiotic. Aureobasidin A (Basifungin) A is an inhibitor of the inositolphosphorylceramide synthase AUR1.

SN52 is a potent, competitive, and cell-permeable inhibitor of NF-κB2. SN52 is a variant of the SN50 peptide and inhibits the nuclear translocation of p52-RelB heterodimers. SN52 has a strong radiosensitization effect on prostate cancer cells. SN52 can be used for cancer research.

Suc-Leu-Leu-Val-Tyr-AMC is a fluorogenic substrate.

GLP-1(7-37) is an intestinal insulinotropic hormone that augments glucose induced insulin secretion.

SLIGRL-NH2 (Protease-Activated Receptor-2 Activating Peptide) is an agonist of Protease-Activated Receptor-2 (PAR-2).

TAT-HA2 Fusion Peptide is a peptide-based delivery agent that combines the pH-sensitive HA2 fusion peptide from Influenza and the cell-penetrating peptide TAT from HIV. TAT-HA2 Fusion Peptide induces the cellular uptake of macromolecules into endosomes via the TAT moiety and to respond to the acidifying lumen of endosomes to cause membrane leakage and release of macromolecules into cells via the HA2 moiety.

WRW4, a specific formyl peptide receptor-like 1 (FPRL1) antagonist, inhibits WKYMVm binding to FPRL1 with an IC50 of 0.23 μM. WRW4 specifically inhibits the increase in intracellular calcium by the FPRL1 agonists MMK-1, amyloid beta42 (Abeta42) peptide, and F peptide.

Atosiban acetate (RW22164 acetate;RWJ22164 acetate) is a nonapeptide competitive vasopressin/oxytocin receptor antagonist, and is a desamino-oxytocin analogue. Atosiban is the main tocolytic agent and has the potential for spontaneous preterm labor research.

PAR-4 Agonist Peptide, amide TFA (PAR-4-AP TFA; AY-NH2 TFA) is a proteinase-activated receptor-4 (PAR-4) agonist, which has no effect on either PAR-1 or PAR-2 and whose effects are blocked by a PAR-4 antagonist.

GLP-1(7-36), amide acetate is a major intestinal hormone that stimulates glucose-induced insulin secretion from β cells.

Cardiotoxin Analog (CTX) IV (6-12) (TFA) is a part peptide of Cardiotoxin Analog (CTX) IV. Cardiotoxin analogues IV isolated from the venom of Taiwan Cobra. CTX IV is an unique snake venom cardiotoxin.

LSKL, Inhibitor of Thrombospondin (TSP-1) is a latency-associated protein (LAP)-TGFβ derived tetrapeptide and a competitive TGF-β1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-β1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) can readily crosse the blood-brain barrier.

Endothelin 1 (swine, human) (TFA) is a synthetic peptide with the sequence of human and swine Endothelin 1, which is a potent endogenous vasoconstrictor. Endothelin 1 acts through two types of receptors ETA and ETB.

α-Methyl-DL-aspartic acid is a specific inhibitor of argininosuccinate synthase (ASS), and also is the rate-limiting enzyme for the recycling of 1-citrulline to 1-arginine.

N6-Diazo-L-Fmoc-lysine is an active compand and can be used in a variety of chemical studies. N6-Diazo-L-Fmoc-lysine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.

[Leu5]-Enkephalin is a pentapeptide with morphine like properties. [Leu5]-Enkephalin is a five amino acid endogenous peptide that acts as an agonist at opioid receptors.

LSKL, Inhibitor of Thrombospondin (TSP-1) TFA is a latency-associated protein (LAP)-TGFβ derived tetrapeptide and a competitive TGF-β1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-β1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) TFA can readily crosse the blood-brain barrier.

α-CGRP(human) is a regulatory neuropeptide of 37 amino acids. α-CGRP(human) is widely distributed in the central and peripheral nervous system. α-CGRP(human) is a potent vasodilator.

Cortistatin-14, a neuropeptide have structural similarity to somatostatin-14, binds and exerts its function via the somatostatin receptors (sst1-sst5). Cortistatin-14 shows anticonvulsive, neuroprotective effect and remarkable anti-inflammatory properties.

Etelcalcetide hydrochloride (AMG 416 hydrochloride) is a synthetic peptide as an activator of the calcium sensing receptor (CaSR). Etelcalcetide hydrochloride is effective in lowering parathyroid hormone (PTH) concentrations in patients receiving dialysis with secondary hyperparathyroidism receiving hemodialysis.

Human serum albumin (HSA) is the most abundant protein in plasma, representing the major factor of plasma oncotic pressure. Human serum albumin exhibits antioxidant, anticoagulant, anti-inflammatory and antiplatelet aggregation activity as well as colloid osmotic effect. Human serum albumin is also associated with cardiovascular diseases, serving as an independent prognosticator.

COG1410 is an apolipoprotein E-derived peptide and an apoptosis inhibitor. COG1410 exerts neuroprotective and antiinflammatory effects in a murine model of traumatic brain injury (TBI). COG1410 can be used for the research of neurological disease.

Polymyxin B nonapeptide TFA is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue. Polymyxin B nonapeptide TFA is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes.

LL-37, human is a 37-residue, amphipathic, cathelicidin-derived antimicrobial peptide, which exhibits a broad spectrum of antimicrobial activity. LL-37, human could help protect the cornea from infection and modulates wound healing.

Z-Gly-Gly-Arg-AMC acetate is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP).

[Leu15]-Gastrin I (human) is a peptide. Gastrin exerts its function through G-protein-coupled receptor called the cholecystokinin (CCK) or CCK-B receptor (CCK-BR).

Neurotensin, a gut tridecapeptide, acts as a potent cellular mitogen for various colorectal and pancreatic cancers which possess high-affinity neurotensin receptors (NTR).

GPRP acetate (Gly-Pro-Arg-Pro acetate) is a fibrin polymerization inhibitor that inhibits the interaction of fibrinogen with the platelet membrane glycoprotein IIb/IIIa complex (GPIIb/IIIa).

YAP-TEAD-IN-1 TFA is a potent and competitive peptide inhibitor of YAP-TEAD interaction (IC50=25 nM). YAP-TEAD-IN-1 TFA is a 17mer peptide and shows a higher the binding affinity to TEAD1 (Kd=15 nM) than YAP (50-171) (Kd= 40 nM).

PACAP (1-38), human, ovine, rat is a neuropeptide with 38 amino acid residues. PACAP (1-38) binds to PACAP type I receptor, PACAP type II receptor VIP1, and PACAP type II receptor VIP2 with IC50s of 4 nM, 2 nM, and 1 nM, respectively.

Laminin (925-933) (TFA) is a peptide derived from residues 925-933 of the Laminin B1 chain that binds to the laminin receptor.

iRGD peptide is a 9-amino acid cyclic peptide, triggers tissue penetration of agents by first binding to av integrins, then proteolytically cleaved in the tumor to produce CRGDK/R to interact with neuropilin-1, and has tumor-targeting and tumor-penetrating properties.

Z-Ala-Ala-Asn-AMC (Cbz-Ala-Ala-Asn-AMC) is the legumain substrate. Overexpressed legumain in 293 HEK-Leg cells potently cleaved CBZ-Ala-Ala-Asn-AMC.

GLP-1(7-37) acetate is an intestinal insulinotropic hormone that augments glucose induced insulin secretion.

COG 133 TFA is a fragment of Apolipoprotein E (APOE) peptide. COG 133 TFA competes with the ApoE holoprotein for binding the LDL receptor, with potent anti-inflammatory and neuroprotective effects. COG 133 TFA is also a nAChR antagonist with an IC50 of 445 nM.

Cyclo(Phe-Pro) (Cyclo(phenylalanylprolyl)), a Vibrio vulnificus quorum-sensing molecule, inhibits retinoic acid-inducible gene-I (RIG-I) polyubiquitination, through its specific interaction with RIG-I, to blunt IRF-3 activation and type-I IFN production. Cyclo(Phe-Pro) (Cyclo(phenylalanylprolyl)) enhances susceptibility to hepatitis C virus (HCV), as well as Sendai and influenza viruses.

LQVTDSGLYRCVIYHPP (LP17) is a triggering receptor expressed on myeloid cells (TREM-1) inhibitory peptide. LQVTDSGLYRCVIYHPP substantially alleviates ischemia-induced infarction and neuronal injury. LQVTDSGLYRCVIYHPP can get access into brain and block TREM-1.