Analysis of the Escherichia coli genome. V. DNA sequence of the region from 76.0 to 81.5 minutes - PubMed (original) (raw)

Analysis of the Escherichia coli genome. V. DNA sequence of the region from 76.0 to 81.5 minutes

H J Sofia et al. Nucleic Acids Res. 1994.

Free PMC article

Abstract

The DNA sequence of a 225.4 kilobase segment of the Escherichia coli K-12 genome is described here, from 76.0 to 81.5 minutes on the genetic map. This brings the total of contiguous sequence from the E.coli genome project to 725.1 kb (76.0 to 92.8 minutes). We found 191 putative coding genes (ORFs) of which 72 genes were previously known, and 110 of which remain unidentified despite literature and similarity searches. Seven new genes--arsE, arsF, arsG, treF, xylR, xylG, and xylH--were identified as well as the previously mapped pit and dctA genes. The arrangement of proposed genes relative to possible promoters and terminators suggests 90 potential transcription units. Other features include 19 REP elements, 95 computer-predicted bends, 50 Chi sites, and one grey hole. Thirty-one putative signal peptides were found, including those of thirteen known membrane or periplasmic proteins. One tRNA gene (proK) and two insertion sequences (IS5 and IS150) are located in this segment. The genes in this region are organized with equal numbers oriented with or against replication.

PubMed Disclaimer

Similar articles

Cited by

References

    1. J Bacteriol. 1970 Jul;103(1):178-83 - PubMed
    1. Biochim Biophys Acta. 1970 Mar 24;201(3):497-9 - PubMed
    1. J Bacteriol. 1973 Dec;116(3):1258-66 - PubMed
    1. J Bacteriol. 1974 Feb;117(2):641-51 - PubMed
    1. J Bacteriol. 1991 Dec;173(23):7410-1 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources