Design of a novel thymopoietin analogue based on conformational analyses.
Drug Des Deliv
; 6(3): 213-21, 1990 Sep.
Article
em En
| MEDLINE
| ID: mdl-2076180
ABSTRACT
A novel cyclic peptide c(Arg-Pro-Asp-D-Val-Tyr) related to thymopentin--the immunostimulant pentapeptide contained in thymic hormones--was designed on the basis of theoretical computer modeling. We applied molecular dynamics/energy minimization techniques and restrained molecular dynamics to determine the preferred conformation of this peptide. The linear precursor of the peptide is biologically active and probably exists in a highly motile dynamical equilibrium of different conformations. Our calculations show that the cyclic peptide consists of a single conformational family containing a beta turn at position Pro 2. Experimental support for this conclusion was derived from 2-D NOE data in aqueous solution for the closely related analogue c(Arg-Lys-Glu-D-Val-Tyr). Synthesis and biological testing of the cyclic peptide is therefore indicated.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peptídeos Cíclicos
/
Timopoietinas
/
Timopentina
Idioma:
En
Ano de publicação:
1990
Tipo de documento:
Article