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大肠杆菌脱氧核糖核酸合成突变体:它们对噬菌体P2和卫星噬菌体P4脱氧核糖核酸合成的影响。

Escherichia coli deoxyribonucleic acid synthesis mutants: their effect upon bacteriophage P2 and satellite bacteriophage P4 deoxyribonucleic acid synthesis.

作者信息

Bowden D W, Twersky R S, Calendar R

出版信息

J Bacteriol. 1975 Oct;124(1):167-75. doi: 10.1128/jb.124.1.167-175.1975.

Abstract

Escherichia coli C strains containing different deoxyribonucleic acid (DNA) synthesis mutations have been tested for their support of the DNA synthesis of bacteriophage P2 and its satellite phage P4. Bacteriophage P2 requires functional dnaB, dnaE, and dnaG E. coli gene products for DNA synthesis, whereas it does not require the products of the dnaA, dnaC, or dnaH genes. In contrast, the satellite virus P4 requires functional dnaE and dnaH gene products for DNA synthesis and does not need the products of the dnaA, dnaB, dnaC, and dnaG genes. Thus the P2 and P4 genomes are replicated differently, even though they are packaged in heads made of the same protein.

摘要

已对含有不同脱氧核糖核酸(DNA)合成突变的大肠杆菌C菌株支持噬菌体P2及其卫星噬菌体P4的DNA合成的能力进行了测试。噬菌体P2的DNA合成需要功能性的大肠杆菌dnaB、dnaE和dnaG基因产物,而不需要dnaA、dnaC或dnaH基因的产物。相比之下,卫星病毒P4的DNA合成需要功能性的dnaE和dnaH基因产物,而不需要dnaA、dnaB、dnaC和dnaG基因的产物。因此,尽管P2和P4基因组被包装在由相同蛋白质构成的头部中,但它们的复制方式不同。

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