期刊
FEBS LETTERS
卷 581, 期 23, 页码 4417-4422出版社
WILEY
DOI: 10.1016/j.febslet.2007.08.016
关键词
carbohydrate metabolism; AC70R1-504
AC70R1-504 Escherichia coli mutants possess a glgC gene with a nucleotide change resulting in a premature stop codon that renders a truncated, inactive form of GlgC. Cells over-expressing the wild type glgC, but not those over-expressing the AC70R1-504 g1gC*, accumulated high ADPglucose and glycogen levels. AC70R1-504 mutants accumulated glycogen, whereas Delta glgCAP deletion mutants lacking the whole glycogen biosynthetic machinery displayed a glycogen-less phenotype. AC70R1-504 cells with enhanced glycogen synthase activity accumulated high glycogen levels. By contrast, AC70RI-504 cells with high ADPG hydrolase activity accumulated low glycogen. These data further confirm that enterobacteria possess various sources of ADPglucose linked to glycogen biosynthesis. (c) 2007 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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