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Comparative characteristics of water-soluble proteins from Larix sibirica, Picea obovata, and Abies sibirica bud meristem

Author:
Alaudinova, E. V., Mironov, P. V.
Source:
Chemistry of natural compounds 2010 v.46 no.3 pp. 430-435
ISSN:
0009-3130
Subject:
Abies sibirica, Larix sibirica, Picea obovata, alanine, aspartic acid, autumn, buds, meristems, molecular weight, nitrogen, peptides, proline, proteins, tyrosine
Abstract:
The amount of water-soluble proteins in bud meristem of Larix sibirica L., Picea obovata L., and Abies sibirica L. was shown to increase by 2-3 times in autumn during development of low-temperature resistance. The fractional composition of water-soluble proteins of the studied species and the amino-acid composition of groups of water-soluble proteins with different molecular weight (MW) were similar. Nitrogen accumulated as aspartic acid, glycine, and alanine in high- and medium-molecular-weight proteins. The peptides (MW < 5 kDa) typically had a high content of hydrophobic proline and hydrophilic tyrosine.
Agid:
468449