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The complete genome sequence of Escherichia coli K-12.

Science (New York, N.Y.) | Sep 5, 1997

http://www.ncbi.nlm.nih.gov/pubmed/9278503

The 4,639,221-base pair sequence of Escherichia coli K-12 is presented. Of 4288 protein-coding genes annotated, 38 percent have no attributed function. Comparison with five other sequenced microbes reveals ubiquitous as well as narrowly distributed gene families; many families of similar genes within E. coli are also evident. The largest family of paralogous proteins contains 80 ABC transporters. The genome as a whole is strikingly organized with respect to the local direction of replication; guanines, oligonucleotides possibly related to replication and recombination, and most genes are so oriented. The genome also contains insertion sequence (IS) elements, phage remnants, and many other patches of unusual composition indicating genome plasticity through horizontal transfer.

Pubmed ID: 9278503 RIS Download

Mesh terms: Bacterial Proteins | Bacteriophage lambda | Base Composition | Binding Sites | Chromosome Mapping | DNA Replication | DNA Transposable Elements | DNA, Bacterial | Escherichia coli | Genes, Bacterial | Genome, Bacterial | Molecular Sequence Data | Mutation | Operon | RNA, Bacterial | RNA, Transfer | Recombination, Genetic | Regulatory Sequences, Nucleic Acid | Repetitive Sequences, Nucleic Acid | Sequence Analysis, DNA | Sequence Homology, Amino Acid

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Associated grants

  • Agency: NHGRI NIH HHS, Id: P01 HG01428
  • Agency: NCRR NIH HHS, Id: S10 RR10379

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