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. 1965 Apr;89(4):1145–1150. doi: 10.1128/jb.89.4.1145-1150.1965

Glycine Synthesis and Metabolism in Escherichia coli

Lewis I Pizer 1
PMCID: PMC277611  PMID: 14276110

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.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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