Structure and function of the region of the replication origin of the Bacillus subtilis chromosome. III. Nucleotide sequence of some 10,000 base pairs in the origin region.
Approximately 10,000 nucleotides were sequenced in the oriC region of the Bacillus subtilis chromosome. The first replicating DNA strands are hybridized with a SalI-EcoRI fragment (nucleotide #1206-2954) in one direction (left to right) and an EcoRI-PstI fragment (#2949-4233) in the other. Seven open reading frames (ORF) accompanied with Shine-Dalgarno (SD) sequences were identified. ORF638 and ORF821 were identified as gyrB and gyrA genes respectively based on genetic evidences and amino acid sequence data. Comparison of amino acid sequences revealed that ORF44, ORF446, ORF378 and ORF323 are homologous with rpmH, dnaA, dnaN and recF of Escherichia coli, respectively. Thus, the organization of the ORFs from ORF44 to ORF638 resembles the organization of genes in the rpmH-gyrB region of the E. coli chromosome. Two non-coding regions characteristic for oriC signals were found near the site of initiation of the first replicating DNA. They are composed of repeating sequences whose consensus sequence TTAT(C/A)CACA is identical to that of 4 repeating sequences in the oriC of E. coli.
14 references, click to expand
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The nucleotide sequence of the dnaA gene promoter and of the adjacent rpmH gene, coding for the ribosomal protein L34, of Escherichia coli.EMBO J. 1982;1(9):1043-8 PMID: 6329723
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