在染色体aroG-nadA区域存在缺失的大肠杆菌铁需求突变体。
Iron-requiring mutant of Escherichia coli carrying a deletion in the aroG-nadA region of the chromosome.
作者信息
Nagy J, Dénes G
出版信息
J Bacteriol. 1976 Oct;128(1):490-1. doi: 10.1128/jb.128.1.490-491.1976.
Abstract
A mutant of Escherichia coli K-12 carrying a deletion in the aroG-nadA region of the genome requires a high concentration of iron for growth. The strain is chromium sensitive, and in the presence of citrate lower concentrations of iron support cell growth. The deletion mutant lost a gene between aroG and nadA that is responsible for the uptake of iron.
摘要
大肠杆菌K-12的一个突变体，其基因组的aroG-nadA区域存在缺失，该突变体生长需要高浓度铁。该菌株对铬敏感，并且在柠檬酸盐存在的情况下，较低浓度的铁就能支持细胞生长。该缺失突变体在aroG和nadA之间丢失了一个负责铁摄取的基因。
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