affinity

CBP501 Affinity Peptide, a Chk kinase inhibitor, disrupts G2 arrest triggered by DNA-damaging agents and is utilized in cancer research [1].

Relamorelin (RM-131), a selective and potent growth hormone-releasing peptide/growth hormone secretagogue receptor (GHSR) agonist, is a potent growth hormone-releasing peptide mimetic with a high affinity for the GHS-1a receptor Relamorelin is a centrally permeable pentapeptide that increases growth hormone levels and accelerates gastric emptying and has potential for studying malignant disease.

Pancreatic Polypeptide, rat acetate is an agonist of NPY receptor, with high affinity at NPYR4.

G280-9 acetate is a common melanoma gp100 epitope restricted by MHC-associated HLA-A2. The G280-9 sequence is unique because it could be recognized by cytotoxic T lymphocytes at very low concentrations, however it shows low total immunogenicity that may b

Orphanin FQ(1-11) acetate(178249-41-7 free base) is a peptide fragment containing amino acids 1-11 of Nociceptin. Orphanin FQ(1-11) acetate(178249-41-7 free base) is a potent agonist of the ORL1/KOR-3 receptor (Ki = 55 nM) and displays no affinity for opioid receptors, including μ, δ, κ1 and κ3 receptors (Ki >1000 nM). Orphanin FQ(1-11) acetate(178249-41-7 free base) displays analgesic properties in CD-1 mice.

Papain Inhibitor acetate (Gly-Gly-Tyr-Arg) is an affinity Ligand for Papain.

Physalaemin acetate is a non-mammalian tachykinin with high affinity when binding selectively to neurokinin-1 (NK1) receptor.

Spadin Acetate is a natural peptide derived from a propeptide released in blood. Spadin Acetate is able to block the TREK-1 channel activity. Spadin Acetate binds specifically to TREK-1 with an affinity of 10 nM.

β-Endorphin (1-27) (human) acetate, existing in the hypophysis cerebri and hypothalamus, exhibits antinociception activity. β-Endorphin (1-27) (human) acetate is an agonist of opioid receptor, showing preferred affinity for μ-opioid receptor and δ-opioid

Astressin acetate is an antagonist of corticotropin releasing factor (CRF) with low affinity for the CRF binding protein and high affinity for the cloned pituitary receptor(Ki = 2 nM).

Novokinin acetate exhibited an affinity for the AT2 receptor with Ki of 7 nM, and its antihypertensive and vasorelaxing activities were blocked by PD123319, an AT2 receptor antagonist.

YRGDS Fibronectin Fragment acetate (YRGDS Fibronectin Fragment acetate (134282-68-1 free base))(134282-68-1 free base) is a fibronectin fragment acetate, an adhesion peptide that displays strong binding affinity to thrombin-stimulated platelets. It is RGD consisting of sequence.

CALP2 acetate is an antagonist of calmodulin showing high affinity for binding to the CaM EF-hand/Ca2+-binding site with a Kd of 7.9 µM. CALP2 acetate potently inhibits of adhesion and degranulation. CALP2 acetate is also a strong activator of alveolar macrophages. CALP2 acetate inhibits CaM-dependent phosphodiesterase activity and increases intracellular Ca2+ concentrations.

Deltorphin (Dermenkephalin) is Isolated from the skin of Phyllomedusa Sauvage. It also has an affinity to the opioid receptor.

gamma-preprotachykinin amide (72-92) acetate is a 21 amino acid peptide belonging to the tachykinin (TK) family and including neurokinin A (NKA) in its C-terminal sequence. gamma-preprotachykinin amide (72-92) acetate possesses higher affinity than NKA for central NK-2 receptors; it shows lower affinity for NK-1 receptors, however, it potently stimulates salivary secretion, which is mediated by NK-1 receptor activation.

PKI (5-24) Acetate is a high affinity PKA inhibitor (Ki = 2.3 nM).

Apelin-12 acetate possesses a high affinity to orphan receptor APJ receptor. Apelin-12 acetate inhibits the JNK and p38 MAPK signaling pathway of the apoptosis-related MAPKs family, thus offering protection to neurons.

p5 Ligand for Dnak and DnaJ acetate is a nonapeptide. It is a high-affinity ligand for DnaK (E. coli Hsp70) and DnaJ (E. coli Hsp40).

ACTH (1-17) acetate is a potent agonist at the human melanocortin 1 (MC1) receptor with high affinity(Ki = 0.21 nM).

Galanin Receptor Ligand M35 TFA is a high-affinity ligand and antagonist of galanin receptor (Kd=0.1 nM).

LAH4 acetate is the α-helical structure of the designed amphoteric peptide antibiotic, which is capable of complexing DNA, associating with the cell surface membrane and wrapped in the endosome, which is destroyed with the decrease of pH value. It has strong antibacterial, nucleic acid transfection and cell penetration activities. LAH4 acetate has high plasmid DNA transmission capacity. LAH4 acetate has a strong affinity for anions in bacterial membranes.

ELA-11 (human) acetate high affinity apelin receptor agonist (Ki = 14 nM). Bioactive fragment of ELA-32. Inhibits forskolin-induced cAMP production and stimulates β-arrestin recruitment in vitro.

RVD-Hpα acetate is the N-terminally extended form of human hemopressin that acts as a selective CB1 receptor agonist. Increases intracellular Ca2+ levels in cells expressing CB1 receptors in vitro. Also high affinity CB2 positive allosteric modulator (Ki

JIP-1 (153-163) acetate(438567-88-5 free base) is a peptide inhibitor of c-Jun N-terminal kinase (JNK), based on residues 153-163 of JNK-interacting protein-1 (JIP-1). JIP-1 (153-163) acetate(438567-88-5 free base) binds to JNK with affinity in the micromolar range and minimally inhibits p38 and ERK.

Acein acetate is a high-affinity angiotensin-converting enzyme (ACE) ligand (Kd = 2.79 nM). Concentrations up to 500 nM had no significant effect on ACE enzyme activity. Enhanced NMDA + D-serine-induced dopamine release from striatal slices in vitro and striatum in vivo.

Conopressin S acetate(111317-90-9 free base) (Con-S acetate) is a natural product isolated from Conus striatus, shows high affinity with vasopressin V1b receptor (AVPR1B), with a Ki of 8.3 nM.

M1145 acetate, a chimeric peptide, is a selective galanin receptor type 2 (GAL2) agonist, with a Ki of 6.55 nM. M1145 acetate shows more than 90-fold higher affinity for GAL2 over GAL1 (Ki=587 nM) and a 76-fold higher affinity over GalR3 (Ki=497 nM). M1145 acetate has an additive effect on the signal transduction of galanin[1].

A-1155463, a highly potent and selective BCL-XL inhibitor, shows picomolar binding affinity to BCL-XL, and >1000-fold weaker binding to BCL-2 and related proteins BCL-W(Ki=19 nM) and MCL-1(Ki>440 nM).

High affinity neuropeptide Y Y1 receptor agonist

Relamorelin (RM-131) acetate is a pentapeptide ghrelin analog that acts as a selective agonist for the ghrelin/growth hormone secretagogue receptor (GHSR). It exhibits a high affinity for the GHS-1a receptor, with a Ki value of 0.42 nM. Notably, Relamorelin acetate can cross the blood-brain barrier and target the central nervous system. This compound effectively increases growth hormone levels and promotes faster gastric emptying. Due to these properties, Relamorelin acetate holds promise for its potential applications in research related to cachexia, gastroparesis, and gastric/intestinal dysmobility disorders [4] [5].

YMRF-NH2, a neuropeptide, exhibits affinity for the FMRFa receptor (FMRFa-R), demonstrating an EC50 value of 31 nM [1] [2].

Urotoxin selectively inhibits the hKv1.2 potassium channel, showcasing a specific affinity for this subtype [1].

TAT-P4-(DATC5)2 is a potent peptide inhibitor targeting the PDZ domain of protein interacting with C kinase-1 (PICK1), exhibiting a high affinity with a dissociation constant (K_i) of 1.7 nM. This compound has demonstrated the capacity to mitigate addiction behaviors in rat models [1].

Mad1 (6-21) TFA, a fragment encompassing amino acids 6 to 21 of the Mad1 protein, exhibits a strong affinity for the PAH2 domain of mammalian Sin3A with a dissociation constant (Kd) of approximately 29 nM [1].

K1 peptide TFA exhibits high affinity as a ligand for the GABAA receptor-associated protein (GABARAP) [1].

GAD65 (524-543) is a biologically active peptide comprising amino acids 524 to 543 of glutamic acid decarboxylase 65 (GAD65). It represents an early islet antigen fragment that elicits proliferative T cell responses in the non-obese diabetic (NOD) mouse model, instrumental in spontaneous autoimmune diabetes research. The peptide serves as a specific, possibly low affinity stimulant for the diabetogenic T cell clone BDC2.5. Notably, immunization with GAD65 (524-543) heightens NOD mice's vulnerability to type 1 diabetes when subjected to the adoptive transfer of BDC2.5 T cells.

Caloxin 1B1, a bioactive peptide, exhibits selective inhibition of PMCA extracellularly by binding preferentially to the extracellular domain 1 of PMCA4 over PMCA1. Identified through a screening process for its high-affinity interaction with PMCA, Caloxin 1B1 is capable of direct application to cells and tissues, facilitating research into its impact on smooth muscle and endothelium.

AP 811 acetate is a selective antagonist of the atrial natriuretic peptide clearance receptor (ANP-CR, NPR3), demonstrating high affinity with a K_i value of 0.48 nM and exhibiting over 20,000-fold selectivity for NPR3 compared to NPR1. It effectively inhibits ANP-induced pump stimulation [1] [2].

High affinity ligand for the NOP site (Ki = 1.5 nM). Antagonizes nociceptin-stimulated GTP binding in rat brain and the chronotropic effect of nociceptin on rat cardiomyocytes. However, displays potent agonist properties in vivo, inhibiting locomotor acti

High affinity neuropeptide Y Y1 receptor agonist (Ki = 0.39 nM). Also shows affinity for Y4 and Y5 receptors.

Endogenous APJ receptor agonist that is secreted by adipocytes. Binds with high affinity to APJ receptors (IC50 = 5.4 nM) and potently inhibits cAMP production in vitro (EC50 = 0.52 nM). Involved in regulation of cardiovascular function, fluid homeostasis

High affinity and potent ghrelin receptor inverse agonist (Ki values are 4.9 and 31 nM in COS7 and HEK293T cells, respectively). Blocks ghrelin receptor-mediated Gq- and G13-dependent signaling pathways.

This peptide, generated from the BH3 domain of Bak (Flu-BakBH3), has been shown to have high-affinity binding to a surface pocket of the Bcl-XL protein that is required for its death antagonist function.

Orphanin FQ(1-11) is a peptide fragment containing amino acids 1-11 of Nociceptin. Orphanin FQ(1-11) is a potent agonist of the ORL1/KOR-3 receptor (Ki = 55 nM) and displays no affinity for opioid receptors, including μ, δ, κ1 and κ3 receptors (Ki >1000 nM). Orphanin FQ(1-11) displays analgesic properties in CD-1 mice.

Calmodulin Binding Peptide 1, a potent CaM-binding peptide with picomolar (pM) affinity, originates from smooth muscle myosin light-chain kinase (MLCK peptide). It effectively blocks inositol trisphosphate (IP3)-induced calcium (Ca2+) release [1].

Phosphopeptide ligand for the src SH2 domain (IC50 = 42 nM); displays 30-fold higher affinity than N-acetyl-O-phosphono-Tyr-Glu-Glu-Ile-Glu (Ac-pYEEIE,).

STING agonist 12L is a stimulator of interferon genes (STING) agonist that exhibits binding affinity for both wild-type STING and its variants R232, AQ, and Q with half-maximal inhibitory concentrations (IC50s) of 1.15 µM for wild-type, 1.06 µM for R232, 0.61 µM for AQ, and 1.12 µM for Q. It effectively induces reporter gene expression in THP-1 and RAW 264.7 cells, with half-maximal effective concentrations (EC50s) of 0.38 µM and 12.94 µM, respectively. At a concentration of 5 µM, STING agonist 12L escalates the expression of IFNB1, CXCL10, and IL6 mRNA in THP-1 cells. When administered in vivo at a dose of 10 mg/kg, it enhances plasma IFN-β levels and considerably reduces tumor volume and the number of lung metastases in a B16/F10 murine melanoma model.

Deltorphin acetate is a substance obtained from the skin secretions of a frog, Phyllomedusa bicolor and shows high selectivity and affinity for δ-opioid receptor.

TP508 is a 23 amino acid synthetic peptide representing residues 508-530 of human prothrombin which is identified as a potential receptor-binding domain based on competition for high-affinity thrombin binding to fibroblasts.TP508 (Chrysalin) is an investi

WL47 is a high-affinity ligand for caveolin-1 (CAV1) with a dissociation constant (Kd) of 23 nM, demonstrating potent disruption of CAV1 oligomers. This compound exhibits selectivity for CAV1, with minimal interaction towards BSA, casein, and HEWL. Notably, WL47's molecular structure is 80% smaller than its T20 parent sequence, rendering it a useful tool for investigating caveolin-1 function [1].