[Des-Arg9]-Bradykinin - CAS 15958-92-6
Category: Inhibitor
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Molecular Formula:
C44H61N11O10
Molecular Weight:
904.03
COA:
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Targets:
Bradykinin Receptor
Description:
[Des-Arg9]-Bradykinin is a selective Bradykinin(B1) receptor agonist and increases intracellular Ca2+ in bronchoalveolar eosinophils from ovalbumin-sensitized and -challenged mice.
Synonyms:
(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[2-[[(2S)-1-[(2S)-1-[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-3-hydroxypropanoyl]pyrrolidine-2-carbonyl]amino]-3-phenylpropanoic acid; H-Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-OH; L-arginyl-L-prolyl-L-prolyl-glycyl-L-phenylalanyl-L-seryl-L-prolyl-L-phenylalanine
Solubility:
DMSO
Storage:
Store in a cool and dry place (or refer to the Certificate of Analysis).
MSDS:
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Density:
1.47 g/cm3
InChIKey:
VCEHWDBVPZFHAG-POFDKVPJSA-N
InChI:
1S/C44H61N11O10/c45-29(15-7-19-48-44(46)47)40(61)55-22-10-18-35(55)42(63)54-21-8-16-33(54)38(59)49-25-36(57)50-30(23-27-11-3-1-4-12-27)37(58)52-32(26-56)41(62)53-20-9-17-34(53)39(60)51-31(43(64)65)24-28-13-5-2-6-14-28/h1-6,11-14,29-35,56H,7-10,15-26,45H2,(H,49,59)(H,50,57)(H,51,60)(H,52,58)(H,64,65)(H4,46,47,48)/t29-,30-,31-,32-,33-,34-,35-/m0/s1
Canonical SMILES:
C1CC(N(C1)C(=O)C2CCCN2C(=O)C(CCCN=C(N)N)N)C(=O)NCC(=O)NC(CC3=CC=CC=C3)C(=O)NC(CO)C(=O)N4CCCC4C(=O)NC(CC5=CC=CC=C5)C(=O)O
1.Specificity studies on Kallikrein-related peptidase 7 (KLK7) and effects of osmolytes and glycosaminoglycans on its peptidase activity.
Oliveira JR;Bertolin TC;Andrade D;Oliveira LC;Kondo MY;Santos JA;Blaber M;Juliano L;Severino B;Caliendo G;Santagada V;Juliano MA Biochim Biophys Acta. 2015 Jan;1854(1):73-83. doi: 10.1016/j.bbapap.2014.10.018. Epub 2014 Oct 30.
KLK7 substrate specificity was evaluated by families of fluorescence resonance energy transfer (FRET) peptides derived from Abz-KLFSSK-Q-EDDnp (Abz=ortho-aminobenzoic acid and Q-EDDnp=glutaminyl-N-[2,4-dinitrophenyl] ethylenediamine), by one bead-one peptide FRET peptide library in PEGA resin, and by the FRET peptide libraries Abz-GXX-Z-XX-Q-EDDnp (Z and X are fixed and random natural amino acids, respectively). KLK7 hydrolyzed preferentially F, Y or M, and its S1' and S2' subsites showed selectivity for hydrophilic amino acids, particularly R and K. This set of specificities was confirmed by the efficient kininogenase activity of KLK7 on Abz-MISLM(↓)KRPPGFSPF(↓)RSSRI-NH2 ((↓)indicates cleavage), hydrolysis of somatostatin and substance P and inhibition by kallistatin. The peptide Abz-NLY(↓)RVE-Q-EDDnp is the best synthetic substrate so far described for KLK7 [kcat/Km=455 (mMs)(-1)] that was designed from the KLK7 substrate specificity analysis. It is noteworthy that the NLYRVE sequence is present in human semaphorin 6B. KLK7 is activated by GAGs, inhibited by neutral salts, and activated by high concentration of kosmotropic salt. Pyroglutamic acid inhibited KLK7 (Ki=33mM) and is present in skin moisturizing factor (124mM).
2.Differential regulation of astrocyte prostaglandin response by kinins: possible role for mitogen activated protein kinases.
Torika N;Filipovich-Rimon T;Asraf K;Roasso E;Danon A;Fleisher-Berkovich S Eur J Pharmacol. 2014 Oct 15;741:323-9. doi: 10.1016/j.ejphar.2014.08.013. Epub 2014 Aug 26.
The role of kinins, well known as peripheral inflammatory mediators, in the modulation of brain inflammation is not completely understood. The present data show that bradykinin, a B2 receptor agonist, enhanced both basal and lipopolysaccharide (LPS)-induced cyclooxygenase-2 mRNA and protein levels and prostaglandin E2 synthesis in primary rat astrocytes. By contrast, Lys-des-Arg(9)-bradykinin, which is a bradykinin breakdown product and a selective kinin B1 receptor agonist, attenuated both basal and LPS-induced astrocyte cyclooxygenase-2 mRNA levels and prostaglandin E2 production. Pre-treating the cells with p42/p44 MAPK but not with JNK or p38 inhibitors completely abrogated PGE2 synthesis in cells stimulated with LPS in the presence of bradykinin or bradykinin B1 receptor agonist. Bradykinin, but not the bradykinin B1 receptor agonist, augmented p42/p44 MAPK phosphorylation. The phosphorylation of JNK and p38 was not altered upon exposure to Bradykinin or the bradykinin B1 receptor agonist. These results suggest that the dual delayed effect of kinins on PGE2 synthesis may be due to differential regulation of COX-2 and signaling molecules such as p42/p44 MAPKs. Thus, kinins may exert opposing actions on brain inflammation and neurodegenerative diseases.
3.Fluorescent ligands of the bradykinin B1 receptors: pharmacologic characterization and application to the study of agonist-induced receptor translocation and cell surface receptor expression.
Bawolak MT;Gera L;Morissette G;Bouthillier J;Stewart JM;Gobeil LA;Lodge R;Adam A;Marceau F J Pharmacol Exp Ther. 2009 Apr;329(1):159-68. doi: 10.1124/jpet.108.149724. Epub 2009 Jan 9.
Unlike the widely distributed and preformed B(2) receptors, the bradykinin B(1) receptors exhibit a highly regulated expression and minimal agonist-induced endocytosis. To evaluate the potential usefulness of fluorescent B(1) receptor probes applicable to live cell microscopy and cytofluorometry, combined chemical synthesis and pharmacologic evaluation have been conducted on novel 5(6)-carboxyfluorescein [5(6)CF]-containing peptides. Representative agents are the antagonist B-10376 [5(6)CF-epsilon-aminocaproyl-Lys-Lys-[Hyp(3), CpG(5), D-Tic(7), CpG(8)]des-Arg(9)-bradykinin] and the agonist B-10378 [5(6)CF-epsilon-aminocaproyl-Lys-des-Arg(9)-bradykinin]. B-10376 has a K(i) of 10 to 20 nM to displace [(3)H]Lys-des-Arg(9)-bradykinin from rabbit or human recombinant B(1) receptors expressed in human embryonic kidney (HEK) 293 cells and is a surmountable antagonist in the rabbit aorta contractility assay (pA(2), 7.49). B-10378 was a full agonist at the naturally expressed B(1) receptor (rabbit aorta contraction, calcium transients in human smooth muscle cells) and had a binding competition K(i) of 19 or 89 nM at the recombinant rabbit or human receptor, respectively. Both fluorescent probes can label with specificity human or rabbit B(1) receptors expressed in HEK 293 cells (epifluorescence or confocal microscopy), but the agonist was associated with discontinuous plasma membrane labeling, which coincided with that of a red-emitting caveolin-1 conjugate.
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Chemical Structure

CAS 15958-92-6 [Des-Arg9]-Bradykinin

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