Analysis of transfer genes and gene products within the traB-traC region of the Escherichia coli fertility factor, F.
Analysis of transfer genes and gene products within the traB-traC region of the Escherichia coli fertility factor, F.
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分析大肠杆菌生育因子 F. traB-traC 区域内的转移基因和基因产物。
DOI：
10.1128/jb.169.9.3994-4002.1987
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发表时间：
1987
影响因子：
3.2
通讯作者：
Ippen-Ihler,K
中科院分区：
文献类型：
--
作者：
Moore,D;Wu,JH;Kathir,P;Hamilton,CM;Ippen-Ihler,K
A series of plasmids that carry overlapping segments of F DNA encoding the genes in the traB-traC interval was constructed, and a restriction enzyme map of the region was derived. Plasmids carrying deletions that had been introduced at an HpaI site within this interval were also isolated. The ability of these plasmids to complement transfer of F lac plasmids carrying mutations in traB, traV, and traW, and traC was analyzed. The protein products of the plasmids were labeled in UV-irradiated cells and analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and autoradiography. These analyses showed that the product of traV is a polypeptide that migrates with an apparent molecular weight of 21,000. It was not detected when [35S]methionine was used to label plasmid products, but was readily detected in 14C-amino acid labeling experiments. A 21,500-dalton product appeared to stem from the region assigned to traP. A 9,000-dalton product was found to stem from a locus, named traR, that is located between traV and traC. No traW activity could be detected from the region of tra DNA examined. Our data also indicated that traC is located in a more promoter-proximal position than suggested on earlier maps. The plasmids constructed are expected to be useful in studies designed to identify the specific functions of the traB, -P, -V, -R, and -C products.
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影响因子：
56.9
作者：
BLATTNER, FR;WILLIAMS, BG;SMITHIES, O
通讯作者：
SMITHIES, O
激肽释放酶多基因家族：生物活性肽的特异性加工。
DOI：
--
发表时间：
1983
期刊：
Cold Spring Harbor Symposia on Quantitative Biology
影响因子：
--
作者：
J. Shine;A. Mason;B. A. Evans;R. Richards
通讯作者：
R. Richards
影响因子：
--
作者：
P. S. Thomas
通讯作者：
P. S. Thomas
表皮生长因子的生物合成前体及其加工机制。
DOI：
--
发表时间：
1979
影响因子：
11.1
作者：
P. Frey;R. Forand;T. Maciag;E. Shooter
通讯作者：
E. Shooter
影响因子：
56.9
作者：
BENTON, WD;DAVIS, RW
通讯作者：
DAVIS, RW