Sepcialized transducing lines of phage lambda carrying segments between thr and car from the E. coli chromosome have been isolated. With help of these phages it has been shown that the gene sups20 (BΓΆck et al., 1974) corresponds to rpsT, the structural gene for ribosomal protein S20.
Isolation of a transducing phage carrying rpsT, the structural gene for ribosomal protein S20
β Scribed by Friesen, James D. ;Parker, Jack ;Watson, Robert J. ;Fiil, Niels P. ;Pedersen, Steen
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 312 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0026-8925
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β¦ Synopsis
Lambda transducing phages carrying segments of the Escherichia coli chromosome in the dapB region have been isolated in their in vivo gene products analyzed by two-dimensional gel electrophoresis. One of these phages, lambdaddapB-2, carries the structural genes for ribosomal protein S20 (rps T) and isoleucyltransfer RNA synthetase (ileS.) The most likely gene order is thr-rpsT-ileS-dapB-pyrA.
π SIMILAR VOLUMES
A grpE mutation of Escherichia coli K12, which blocks DNA replication of the phage lambda (Saito and Uchida, 1977), was mapped at 56 min on the standard genetic map. A transducing lambda phage, lambdagrpE22, carrying the wild type allele of the grpE gene was constructed in vitro. Structures of lambd