Abstract
The hypothesis that DNA strands complementary to the coding strand contain in phase coding sequences has been investigated. Statistical analysis of the 50 genes of bacteriophage T7 shows no significant correlation between patterns of codon usage on the coding and non-coding strands. In Bacillus and yeast genes the correlation observed is not different from that expected with random synonymous codon usage, while a high correlation seen in 52 E. coli genes can be explained in terms of an excess of RNY codons. A deficiency of UUA, CUA and UCA codons (complementary to termination) seems to be restricted to the E. coli genes, and may be due to low abundance of the relevant cognate tRNA species. Thus the analysis shows that the non-coding strand has the properties expected of a sequence complementary to a coding strand, with no indications that it encodes, or may have encoded, proteins.
MeSH Terms
Bacillus/genetics
Base Sequence
Codon
DNA/genetics
DNA, Bacterial/genetics
DNA, Fungal/genetics
DNA, Viral/genetics
Genes
Genes, Bacterial
Genes, Fungal
Genes, Viral
RNA, Messenger/genetics
Saccharomyces cerevisiae/genetics
T-Phages/genetics
Templates, Genetic
Chemicals
Codon
DNA, Bacterial
DNA, Fungal
DNA, Viral
RNA, Messenger
DNA
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Sharp P M
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