A peptide-sugar crystalline complex containing a very strong hydrogen bond

Robert O. Gould, Paul Taylor, Katherine M. Varvill, Malcolm D. Walkinshaw*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The X-ray crystal structure of a complex of galacturonic acid and tryptophan methyl ester shows a laminar packing arrangement in which hydrophobia bilayers of amino acid sandwich hexapyranose monolayers; the lattice allows 50:50 occupancy of α- and β-galactopyranose anomers and dimer pairs of galacturonic acid molecules are formed by means of a very strong hydrogen bond of 2.43 Å between the hemiprotonated carboxy groups.

Original languageEnglish
Pages (from-to)1595-1597
Number of pages3
JournalJournal of the Chemical Society, Chemical Communications
Issue number21
DOIs
Publication statusPublished - 1 Jan 1986

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