期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1975
卷号：72
期号：12
页码：4780-4784
DOI：10.1073/pnas.72.12.4780
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：The content of elongation factor Tu in E. coli B has been determined both by radioimmune assay and by GDP binding. The two assays gave comparable results: cells growing at 2 doublings per hour contained about 8 molecules of Tu per ribosome, whereas those growing at 0.22 doublings per hour contained about 14 molecules per ribosome. These levels resemble those reported for tRNA, in contrast with the 1:1 ratio of factor to ribosomes reported for elongation factors Ts and G.
