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Article

Selection pressures on codon usage in the complete genome of bacteriophage T7.

Journal of molecular evolution - 1 Jan 2000

Sharp P M, Rogers M S, McConnell D J

Abstract excerpt

We searched the complete 39,936 base DNA sequence of bacteriophage T7 for nonrandomness that might be attributed to natural selection. Codon usage in the 50 genes of T7 is nonrandom, both over the whole code and among groups of synonymous codons. There is a great excess of purine- any base-pyrimidine (RNY) codons. Codon usage varies between genes, but from the pooled data for the whole genome (12,145 codons)...

Topics

Base Sequence
Codon
DNA Restriction Enzymes
DNA, Viral
Genes
Genes, Viral
Genetic Code
Mutation
Pyrimidines
RNA, Messenger
RNA, Transfer
Selection, Genetic

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

T-Phages

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Identifiers

PMID: 6100189
DOI: 10.1007/BF02100089

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-6100189-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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