X-Ray Studies on Crystalline complexes involving Amino Acids and Peptides. XXXII. Effect of Chirality on ionisation state, Stoichiometry and aggregation in the complexes of Oxalic Acid with DL- and L-lysine

Venkatraman, Janani and Prabu, Moses M and Vijayan, M (1997) X-Ray Studies on Crystalline complexes involving Amino Acids and Peptides. XXXII. Effect of Chirality on ionisation state, Stoichiometry and aggregation in the complexes of Oxalic Acid with DL- and L-lysine. In: Journal of Peptide Research, 50 . pp. 77-87.

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Abstract

Crystals of the oxalic acid complexe of DL-lysine contain lysine and semioxalate ions in the 1:1 ratio, whereas the ratio of lysine and semioxalate/oxalate ions is 2:3 in the crystals of L-lysine complex. The amino acid molecule in the L-lysine complex has an unusual ionisation state with positively charged alpha and side-chain amino groups and a neutral carboxyl group.

Item Type:	Journal Article
Publication:	Journal of Peptide Research
Publisher:	Munksgaard
Additional Information:	Copyright belongs to Munksgaard
Keywords:	amino acid aggregation;amino acid carboxylic acid interactions;amino acid conformation;chemical evolution;chiral effects;ionisation state
Department/Centre:	Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited:	18 Aug 2004
Last Modified:	19 Sep 2010 04:14
URI:	http://eprints.iisc.ac.in/id/eprint/1257

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