Ketomethylenebestatin is a carba-analog of bestatin,the aminopeptidase (AP) inhibitor. Ketomethylenebestatin is 10 fold less effective as an inhibitor of aminopeptidases than bestatin.
Obestatin is a 23 amino acid peptide hormone with a conserved C-terminal glycine residue and amidation site that is formed by cleavage of the ghrelin and obestatin prepropeptide.1It binds to the orphan receptor GPR39 (Kd= 1 nM) and stimulates cAMP production in CHO and HEK293 cells overexpressing human GPR39. Obestatin inhibits contraction of isolated mouse jejunum muscle strips induced by ghrelin .In vivo, obestatin (12.5-1,000 nmol/kg) suppresses food intake in a time- and dose-dependent manner and reduces body weight gain and gastric emptying in mice. Obestatin (0.22 g per animal) also reduces food intake and glucose response without affecting plasma insulin responses in fasted high-fat diet fed mice.2 1.Zhang, J.V., Ren, P.C., Avsian-Kretchmer, O., et al.Obestatin, a peptide encoded by the ghrelin gene, opposes ghrelin's effects on food intakeScience310(5750)996-999(2005) 2.Subasinghage, A.P., Green, B.D., Flatt, P.R., et al.Metabolic and structural properties of human obestatin {1-23} and two fragment peptidesPeptides31(9)1697-1705(2010)
Biotin-BS is a chemical compound composed of two distinct ligands: methyl-bestatin (MeBS) for cIAP1 and biotin. These ligands are interconnected through linkers. MeBS serves as a ligand specifically for the cellular inhibitor of apoptosis protein 1 (cIAP1) ubiquitin ligase[1].
BzNH-BS is a chemical compound comprising two distinct ligands: methyl-bestatin (MeBS) for cIAP1 and benzoyl-amide. The ligands are interconnected through linkers. MeBS functions as a ligand for cIAP1, a ubiquitin ligase involved in cellular inhibition of apoptosis processes [1].
ATRA-hydroxyimino, also known as CRABP-II ligand 1, is a chemical compound derived from Retinoic acid (ATRA). This compound binds to the cIAP1 ligand, specifically Bestatin, through a linker, resulting in the formation of a complex called SNIPER. The purpose of this complex is to degrade CRABP-II within IMR-32 cells[1].
Estrone-N-O-C1-amido (ERα ligand 1) is an estrogen ligand derived from Estrone that specifically binds to estrogen receptor α (ERα). Through a linker, Estrone-N-O-C1-amido (ERα ligand 1) forms a complex with the cIAP1 ligand Bestatin, leading to the creation of SNIPER[1].
Ch55-O-C3-NH2, also known as RAR ligand 1, is a ligand derived from the Ch55 compound that specifically targets RAR. Through a linker, Ch55-O-C3-NH2 interacts with cIAP1 ligand Bestatin to form SNIPER[1].
SNIPER(ABL)-013, conjugating GNF5 (ABL inhibitor) to Bestatin (IAP ligand) with a linker, induces the reduction of BCR-ABL protein with a DC50 of 20 μM[1].
SNIPER(ABL)-020 is a chemical compound consisting of Dasatinib, an ABL inhibitor, and Bestatin, an IAP ligand, conjugated with a linker. This compound effectively reduces the BCR-ABL protein[1].