Abstract
We have determined the nucleotide sequence of the Escherichia coli fus gene, which codes for elongation factor G. The protein product of the sequenced gene contains 703 amino acids, with a predicted molecular weight of 77,444. The fus gene shows the nonrandom pattern of codon usage typical of ribosomal proteins and other proteins synthesized at a high level. We have identified several potential promoter sequences within the gene. One of these sequences may correspond to the secondary promoter for expression of the downstream tufA gene (encoding elongation factor Tu) whose activity has been described previously (1,2). A comparison of the nucleotide and amino acid sequences of elongation factors G and Tu reveals a limited but significant homology between the two proteins within the 150 amino acid residues at their amino-terminal ends.
MeSH Terms
Amino Acid Sequence
Base Sequence
Codon
DNA Restriction Enzymes
Escherichia coli/genetics
Genes, Bacterial
Genes, Fungal
Molecular Weight
Operon
Peptide Elongation Factor G
Peptide Elongation Factors/genetics
Ribosomal Proteins/genetics
Chemicals
Codon
Peptide Elongation Factor G
Peptide Elongation Factors
Ribosomal Proteins
DNA Restriction Enzymes
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Zengel J M
Archer R H
Lindahl L
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21 references, click to expand
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