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Cloning and sequencing of a 23-kb region of the Bacillus subtilis genome between the iol and hut operons.

Yoshida K., Fujimyra M., Yanai N., Fujita Y.

Within the framework of an international project for the sequencing of the entire Bacillus subtilis genome, a 23-kb chromosomal segment, which covers the region between the iol and hut operons, has been cloned and sequenced, creating a 99-kb contig from the gnt operon to the wapA locus. This region (23351 bp) contains 25 complete open reading frames (ORFs; genes) including deoR, dra, nupC and pdp and two partial ones. The region (5140 bp) containing these four genes, being also sequenced by H. H. Saxild et al., was sequenced by subjecting a long polymerase chain reaction product to random sequencing using phage M13mp19. However, we could detect no conflict, between two independently determined sequences, which could be attributed to our sequencing method. A homology search for the 24 newly identified gene products revealed significant homology to known proteins in 14 of them. It was notable that three proteins, encoded by the successive genes (yxeMNO), exhibited meaningful homology to the E. coli GlnHPQ products constituting a periplasmic ATP-dependent transport system for glutamine.

DNA Res. 2:295-301(1995) [PubMed] [Europe PMC]

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