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© Research
Publication : Molecular microbiology

Universal replication biases in bacteria

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Molecular microbiology - 01 Apr 1999

Rocha EP, Danchin A, Viari A

Link to Pubmed [PMID] – 10216855

Mol. Microbiol. 1999 Apr;32(1):11-6

Analysis of 15 complete bacterial chromosomes revealed important biases in gene organization. Strong compositional asymmetries between the genes lying on the leading versus lagging strands were observed at the level of nucleotides, codons and, surprisingly, amino acids. For some species, the bias is so high that the sole knowledge of a protein sequence allows one to predict with almost no errors whether the gene is transcribed from one strand or the other. Furthermore, we show that these biases are not species specific but appear to be universal. These findings may have important consequences in our understanding of fundamental biological processes in bacteria, such as replication fidelity, codon usage in genes and even amino acid usage in proteins.

http://www.ncbi.nlm.nih.gov/pubmed/10216855