Synthesis of elastin based peptides conjugated to benzisoxazole as a new class of potent antimicrobials – A novel approach to enhance biocompatibility
摘要:
The peptides of elastin sequences chosen for the present study included tetrapeptides, pentapeptides and tricosapeptides (30 amino acids), synthesized by classical solution phase method and conjugated to [3-(4-piperidyl)-6-fluoro-1,2-benzisoxazole]. The structures of the compounds were confirmed by physical and spectroscopic techniques followed by the antimicrobial evaluation by both agar well diffusion and microdilution methods. Here we wish to report the effect of conjugation of these moieties which enabled us to identify a novel set of peptides conjugated to heterocycle which have exhibited more potent antimicrobial activity than the conventional drugs used. Further, conjugates of tricosamers 34 and 35 were able to inhibit the growth of fungal species at 3-5 mu g/mL which is nearly 5 fold more potent than the reference drug. (C) 2010 Elsevier Masson SAS. All rights reserved.
Hydrophobicity dependence of oxidation of tetrapeptides of elastin sequences with Mn(III): Synthesis, characterization, kinetics, and mechanistic study
作者:B. K. Kempe Gowda、H. S. Prasad、K. S. Rangappa、D. Channe Gowda
DOI:10.1002/kin.10015
日期:2002.1
The analogues of elastinsequences, glycyl-glycyl-alanyl-proline (GGAP), glycyl-glycyl-phenylalanyl-proline (GGFP), and glycyl-glycyl-isoleucyl-proline (GGIP) were synthesized by classical solution phase method and characterized. The kinetics of oxidation of these tetrapeptides (TETP) by Mn(III) has been studied in the presence of sulphate ions in acidic solution at 25°C. The reaction was followed
Elastomeric polypeptide matrices for preventing adhesion of biological
申请人:The UAB Research Foundation
公开号:US05519004A1
公开(公告)日:1996-05-21
The invention provides a bioelastomer comprising tetrapeptide and/or pentapeptide monomeric units of the formula: R.sub.1 PGR.sub.2 G.sub.n wherein R.sub.1 is a peptide-producing residue of alanine or glycine; P is a peptide-producing residue of proline; G is a peptide-producing residue of glycine; R.sub.2 is a peptide-producing residue of glycine or alanine; and n is 0 or 1. In a further aspect of the invention, a method is provided for preventing adhesion of biological materials, such as protein, cells, and tissues, by forming a protective layer between a first surface and a second surface using the bioelastomer.
Synthesis of elastin based peptides conjugated to benzisoxazole as a new class of potent antimicrobials – A novel approach to enhance biocompatibility
作者:R. Suhas、S. Chandrashekar、D. Channe Gowda
DOI:10.1016/j.ejmech.2010.12.005
日期:2011.2
The peptides of elastin sequences chosen for the present study included tetrapeptides, pentapeptides and tricosapeptides (30 amino acids), synthesized by classical solution phase method and conjugated to [3-(4-piperidyl)-6-fluoro-1,2-benzisoxazole]. The structures of the compounds were confirmed by physical and spectroscopic techniques followed by the antimicrobial evaluation by both agar well diffusion and microdilution methods. Here we wish to report the effect of conjugation of these moieties which enabled us to identify a novel set of peptides conjugated to heterocycle which have exhibited more potent antimicrobial activity than the conventional drugs used. Further, conjugates of tricosamers 34 and 35 were able to inhibit the growth of fungal species at 3-5 mu g/mL which is nearly 5 fold more potent than the reference drug. (C) 2010 Elsevier Masson SAS. All rights reserved.
A New Family of Highly Potent Inhibitors of Microbes: Synthesis and Conjugation of Elastin Based Peptides to Piperazine Derivative
作者:R. Suhas、S. Chandrashekar、D. Channe Gowda
DOI:10.1007/s10989-011-9282-8
日期:2012.6
Elastin protein-based polymers have their origin in repeating sequences of the mammalian elastic protein, elastin. The sequences of elastin peptides chosen are tetrapeptides, pentapeptides and tricosamers (30 amino acids) and also aromatic amino acids. These have been conjugated to 1-(2,3-dichlorophenyl)piperazine to study the effect of conjugation on the activity. The conjugates so obtained were characterized by physical and analytical techniques followed by the antimicrobial evaluation. The study revealed that all the conjugates have exhibited enhanced activity than the conventional drugs. Further, the conjugates of tricosamers have shown extraordinary activity against the fungal species with MIC value of 3–5 μg/ml which is five fold more potent than the antibiotic used.