Literature DB >> 3029379

Complete nucleotide sequence of the topA gene encoding Escherichia coli DNA topoisomerase I.

Y C Tse-Dinh, J C Wang.   

Abstract

The nucleotide sequence of a 4071 base-pair long segment containing the gene topA encoding Escherichia coli DNA topoisomerase I and its flanking regions has been determined. The gene encodes a total of 864 amino acids from the ATG start to a TAA termination codon, of which the first f-Met appears to be removed after translation; the calculated molecular weight of the translated protein is 97,413. Mapping of promoters by deletion of sequences upstream from the ATG initiation codon indicates the existence of at least two promoters that direct transcription into topA.

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Year:  1986        PMID： 3029379     DOI： 10.1016/0022-2836(86)90129-4

Source DB:  PubMed          Journal:  J Mol Biol        ISSN： 0022-2836            Impact factor:   5.469


  27 in total

1.  Speculations on the origin of life and thermophily: review of available information on reverse gyrase suggests that hyperthermophilic procaryotes are not so primitive.

Authors:  P Forterre; F Confalonieri; F Charbonnier; M Duguet
Journal:  Orig Life Evol Biosph       Date:  1995-06       Impact factor: 1.950

2.  Type I topoisomerase activity is required for proper chromosomal segregation in Escherichia coli.

Authors:  Q Zhu; P Pongpech; R J DiGate
Journal:  Proc Natl Acad Sci U S A       Date:  2001-08-07       Impact factor: 11.205

3.  A 1.6 kb region of Bacillus firmus OF4 DNA encodes a homolog of Escherichia coli and yeast DNA topoisomerases and may contain a translational readthrough of UGA.

Authors:  D M Ivey; J Cheng; T A Krulwich
Journal:  Nucleic Acids Res       Date:  1992-09-25       Impact factor: 16.971

4.  Cloning and sequencing of Schizosaccharomyces pombe DNA topoisomerase I gene, and effect of gene disruption.

Authors:  T Uemura; K Morino; S Uzawa; K Shiozaki; M Yanagida
Journal:  Nucleic Acids Res       Date:  1987-12-10       Impact factor: 16.971

5.  Expression of yeast DNA topoisomerase I can complement a conditional-lethal DNA topoisomerase I mutation in Escherichia coli.

Authors:  M A Bjornsti; J C Wang
Journal:  Proc Natl Acad Sci U S A       Date:  1987-12       Impact factor: 11.205

6.  Identification of a vaccinia virus gene encoding a type I DNA topoisomerase.

Authors:  S Shuman; B Moss
Journal:  Proc Natl Acad Sci U S A       Date:  1987-11       Impact factor: 11.205

7.  Molecular evolution of the Escherichia coli chromosome. III. Clonal frames.

Authors:  R Milkman; M M Bridges
Journal:  Genetics       Date:  1990-11       Impact factor: 4.562

Review 8.  Linkage map of Escherichia coli K-12, edition 10: the traditional map.

Authors:  M K Berlyn
Journal:  Microbiol Mol Biol Rev       Date:  1998-09       Impact factor: 11.056

9.  Mapping the active-site tyrosine of vaccinia virus DNA topoisomerase I.

Authors:  S Shuman; E M Kane; S G Morham
Journal:  Proc Natl Acad Sci U S A       Date:  1989-12       Impact factor: 11.205

10.  Identification and nucleotide sequence of the Leptospira biflexa serovar patoc trpE and trpG genes.

Authors:  D B Yelton; S L Peng
Journal:  J Bacteriol       Date:  1989-04       Impact factor: 3.490
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