Publication

Pseudo-prolines: Reversible, conformational trap of cyclosporin C as novel concept for prodrug design

2004
Journal Articles

Abstract

The selective and reversible insertion of pseudo-proline (PsiPro) Systems in cyclosporin C (CsC) featuring different C(2) substituents at the oxazolidine ring and its impact on the conformational and biological properties is described. The presence of a 5-membered ring exerts drastic effects upon the backbone conformation of CsC as demonstrated by NMR analysis. For example, the number of conformations, in particular in DMSO-d6, is strongly reduced and a cis 1-2 amide bond is induced when dialkylated at the C(2) position, resulting in a complete loss of the binding capacity to its receptor CypA. The reversibility of PsiPro insertion allows the temporary introduction of conformational constraints representing a new strategy in pro-drug design.

Official source

https://infoscience.epfl.ch/entities/publication/325baea4-caf7-4d32-ac54-3f4516521ea2

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/325baea4-caf7-4d32-ac54-3f4516521ea2

About this result

Related concepts (29)

Protein design

Protein design is the rational design of new protein molecules to design novel activity, behavior, or purpose, and to advance basic understanding of protein function. Proteins can be designed from scratch (de novo design) or by making calculated variants of a known protein structure and its sequence (termed protein redesign). Rational protein design approaches make protein-sequence predictions that will fold to specific structures.

Random coil

In polymer chemistry, a random coil is a conformation of polymers where the monomer subunits are oriented randomly while still being bonded to adjacent units. It is not one specific shape, but a statistical distribution of shapes for all the chains in a population of macromolecules. The conformation's name is derived from the idea that, in the absence of specific, stabilizing interactions, a polymer backbone will "sample" all possible conformations randomly.

Conformational isomerism

In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted just by rotations about formally single bonds (refer to figure on single bond rotation). While any two arrangements of atoms in a molecule that differ by rotation about single bonds can be referred to as different conformations, conformations that correspond to local minima on the potential energy surface are specifically called conformational isomers or conformers.

Related publications (3)

Pseudo-prolines: Reversible, conformational trap of cyclosporin C as novel concept for prodrug design

Chat with Graph Search

ERAD substrates: Which way out?

Molecular modeling and design of regioselectively addressable functionalized templates with rigidified three-dimensional structures

Phage display of combinatorial peptide and protein libraries and their applications in biology and chemistry