SAM1, the Structural Gene for One of the S-adenosylmethionine Synthetases in Saccharomyces Cerevisiae. Sequence and Expression

Overview

Journal J Biol Chem

Specialty Biochemistry

Date 1987 Dec 5

PMID 3316224

Citations 29

Authors

D Thomas

Affiliations

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Abstract

Saccharomyces cerevisiae contains two genes, SAM1 and SAM2, encoding functional S-adenosylmethionine synthetases. The gene SAM1 was isolated by functional complementation of a double mutant of S. cerevisiae, and its identity was confirmed by gene disruption. The cloned gene was used to probe wild type chromosomal DNA, and two regions hybridizing with SAM1 were found, one of which is the SAM1 region. The DNA sequence of SAM1 is reported. The translation product shows a high homology with the one deduced from the sequence of the MetK gene encoding the SAM synthetase of Escherichia coli.

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