RRC ID 33482
著者 Armstrong KA, Acosta R, Ledner E, Machida Y, Pancotto M, McCormick M, Ohtsubo H, Ohtsubo E.
タイトル A 37 X 10(3) molecular weight plasmid-encoded protein is required for replication and copy number control in the plasmid pSC101 and its temperature-sensitive derivative pHS1.
ジャーナル J Mol Biol
Abstract Nucleotide sequences were determined for a region essential for autonomous replication and partitioning of pSC101, a plasmid whose replication is dependent on the Escherichia coli dnaA gene product. The essential replication region contains one long coding sequence, rep101 , for a protein composed of 316 amino acids, and a polypeptide approximately 37 X 10(3) Mr in size was identified as the rep101 gene product. rep101 is preceded by two inverted repeat sequences, three directly repeated sequences and a region of high A + T content containing a sequence similar to the E. coli oriC consensus sequence. Because the lesions in seven replication-deficient insertion mutants, four mutants with increased copy number and one temperature-sensitive replication mutant occur within rep101 , the rep101 gene product must control pSC101 replication and copy number. par, a region adjacent to the replication region, which functions in stable plasmid inheritance, contains several inverted repeat sequences.
巻・号 175(3)
ページ 331-48
公開日 1984-5-25
DOI 10.1016/0022-2836(84)90352-8
PII 0022-2836(84)90352-8
PMID 6327996
MeSH Autoradiography Bacterial Proteins* Base Sequence Chromosome Mapping DNA Replication* Escherichia coli / genetics* Molecular Weight Mutation Plasmids* Repetitive Sequences, Nucleic Acid Temperature
IF 4.76
引用数 118
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
原核生物(大腸菌) pEL3