大肠杆菌K-12中L-丝氨酸的降解：L-丝氨酸、甘氨酸和亮氨酸组合用作碳源。
L-serine degradation in Escherichia coli K-12: a combination of L-serine, glycine, and leucine used as a source of carbon.
作者信息
Newman E B, Walker C
出版信息
J Bacteriol. 1982 Aug;151(2):777-82. doi: 10.1128/jb.151.2.777-782.1982.
Abstract
Escherichia coli K-12 strain CU1008 cannot use L-serine as the sole carbon source, but it could use L-serine as an auxiliary carbon source with glucose, L-alanine, or pyruvate and could derive energy from L-serine to support oxygen uptake. CU1008 grew with L-serine if it was also provided with glycine and leucine. These may act by increasing the available activity of L-serine deaminase; other explanations are also explored.
摘要
大肠杆菌K-12菌株CU1008不能将L-丝氨酸作为唯一碳源使用，但它可以将L-丝氨酸与葡萄糖、L-丙氨酸或丙酮酸一起作为辅助碳源使用，并且可以从L-丝氨酸中获取能量来支持氧气摄取。如果同时提供甘氨酸和亮氨酸，CU1008可以利用L-丝氨酸生长。这些可能通过增加L-丝氨酸脱氨酶的可用活性而起作用；也探讨了其他解释。
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