Abstract:
:Pizer, Lewis I. (University of Pennsylvania, Philadelphia). Glycine synthesis and metabolism in Escherichia coli. J. Bacteriol. 89:1145-1150. 1965.-A correlation was demonstrated between a nutritional requirement that can only be satisfied by glycine and the absence of the enzymatic capacity to interconvert l-serine and glycine. Serine synthesis from 3-phosphoglycerate was observed in the same cell-free extracts which could not convert serine to glycine. The above results show that serine is the precursor of glycine under normal growth conditions. The C-2 of glycine provided "one-carbon" fragments when the C-3 of serine was not available as the source of "one-carbon" fragments. This condition occurred when a mutation produced a loss of serine aldolase activity or when a serine-glycine auxotroph was grown with glycine. Under these growth conditions, 30 to 40% of the "one-carbon" fragments used for cellular synthesis were derived from glycine.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
PIZER LIdoi
10.1128/JB.89.4.1145-1150.1965keywords:
subject
Has Abstractpub_date
1965-04-01 00:00:00pages
1145-50eissn
0021-9193issn
1098-5530journal_volume
89pub_type
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