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The complete nucleotide sequence of the adenylate cyclase gene of Escherichia coli.

Aiba H., Mori K., Tanaka M., Ooi T., Roy A., Danchin A.

The complete nucleotide sequence of the cya gene from E. coli was determined. The gene encodes a polypeptide consisting of 848 amino acid residues with a calculated molecular weight of 97,542. The deduced protein structure reveals that cyclase is comprised of two domains, an amino-terminal region exhibiting catalytic activity and a carboxy-terminal region possibly carrying regulatory function. The frequent appearance of rare codons in the beginning of the gene as well as the sequence duplication in the promoter-initiator region suggest possible regulation(s) at the translational level. An unknown gene (cyaX) which seems to code for a very hydrophobic protein was found following the cya gene. Sequence analysis suggests that the cyax is a part of the cya operon.

Nucleic Acids Res. 12:9427-9440(1984) [PubMed] [Europe PMC]