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In situ generation and screening of a dynamic combinatorial carbohydrate library against concanavalin A
KTH, Tidigare Institutioner                               , Kemi.ORCID-id: 0000-0002-1533-6514
2000 (engelsk)Inngår i: ChemBioChem (Print), ISSN 1439-4227, E-ISSN 1439-7633, Vol. 1, nr 1, s. 41-48Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Dynamic combinatorial chemistry (DCC) is a recently introduced approach that is based on the generation of combinatorial libraries by reversible interconversion of the library constitutents. In this study, the implementation of such libraries on carbohydrate-lectin interactions was examined. The dynamic carbohydrate libraries were generated from a small set (four or six compounds) of initial carbohydrate dimers through mild disulfide interchange, and selection was performed under two conditions defining either adaptive or pre-equilibrated libraries. Upon initiation, libraries were formed that contained comparable amounts of 10 or 21 individual dimeric species, dynamically interchanging during the scrambling process. They were probed with respect to binding to the plant lectin concanavalin A, either present during library generation or added after equilibration. The libraries could be generated easily both in the presence and absence of the receptor, and a bis-mannose structure was preferentially bound and selected from the mixture. Scrambling of the library in the presence of the receptor resulted in slightly higher yields than when the receptor was added after scrambling, indicating that the receptor to some extent acts as a thermodynamic trap during library generation. The present results illustrate the extention of the DCC approach to carbohydrate recognition groups, the generation of isoenergetic dynamic libraries, and the implementation of either adaptive or pre-equilibrated procedures.

sted, utgiver, år, opplag, sider
2000. Vol. 1, nr 1, s. 41-48
Emneord [en]
chemical evolution, recognition, chemistry, metathesis, binding, lectins, glycobiology, catenanes, receptor, exchange
Identifikatorer
URN: urn:nbn:se:kth:diva-20210ISI: 000165766800004OAI: oai:DiVA.org:kth-20210DiVA, id: diva2:338903
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2019-12-20bibliografisk kontrollert

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