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Synthesis of solid-supported mirror-image sugars: a novel method for selecting receptors for cellular-surface
I A Kozlov1, S Mao, Y Xu
1Department of Chemistry, The Skaggs Institute for Chemical Biology, La Jolla, CA 92037, USA.
Chembiochem : a European Journal of Chemical Biology
|April 12, 2002
Abstract:
We introduced a novel method, through mirror-image phage display, for the identification of high-affinity D-peptides to target specific cell-surface carbohydrates. Both 3-deoxy-alpha-L-manno-2-octulosonic acid (L-KDO) and L-sialic acid and an L-sialo-disaccharide have been synthesized and attached to a solid support for selection of high-affinity peptide binders displayed on phages. Our initial studies in this effort produce single-chain Fab sequences and dodecapeptides that bind to sialic acid and KDO with nanomolar and high micromolar affinity.