ausblenden:
Schlagwörter:
Escherichia coli; diamines; homospermidine synthase;
polyamines; spermidine deficiency; spermidine synthase
S-adenosylmethionine decarboxylase; homospermidine synthase;
chemotaxonomic marker; biosynthesis; putrescine;
proteobacteria; enzyme; operon; genes
Zusammenfassung:
The Escherichia coli mutant speE deficient in the gene encoding for spermidine synthase has no absolute requirement for spermidine but shows a retarded growth rate. This growth retardation could be unspecifically restored to the respective wild type lev