Divergence in codon usage ofLactobacillus species

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Divergence in codon usage of Lactobacillus species.

We have analyzed codon usage patterns of 70 sequenced genes from different Lactobacillus species. Codon usage in lactobacilli is highly biased. Both inter-species and intra-species heterogeneity of codon usage bias was observed. Codon usage in L. acidophilus is similar to that in L. helveticus, but dissimilar to that in L. bulgaricus, L. casei, L. pentosus and L. plantarum. Codon usage in the l...

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Out of numerous genes, differentially expressed genes of Leishmania major (299) and L. infantum (241), essential for their survival, have been studied for the analysis of synonymous codon usage patterns. The role of translational selection and mutational biases were analyzed through ENc plot and correspondence analysis. Present analysis indicates that mutational pressure has a profound effect o...

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More Codon Usage Bias

χ measure. In statistics, the χ statstic computes how different the distribution of values is from a uniform distribution. Let d = c1 . . . cN be a DNA string in nucleotide alphabet, and let L be the total number of codons in d that are not Methinine or Tryptophan (the number does include the stop codons though). Let a be a k-degenerate amino acid, and let La be the total number of codons codin...

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ژورنال

عنوان ژورنال: Nucleic Acids Research

سال: 1994

ISSN: 0305-1048,1362-4962

DOI: 10.1093/nar/22.6.929