title: Cloning and characterization of the secY gene from the cyanobacterium Synechococcus PCC7942.
abstract: The secY gene product is an essential component of the Escherichia coli cytoplasmic membrane, which mediates the protein translocation across the membrane. We found a gene homologous to secY in the genome of the cyanobacterium Synechococcus PCC7942. The deduced amino acid sequence, 439 amino acids long, shows 43% homology with that of the E. coli secY. The hydrophobic profile suggests that the Synechococcus SecY protein is an integral membrane protein containing ten membrane-spanning segments, which are closely related to the E. coli counterpart. The SecY protein may participate in the protein translocation across the cytoplasmic or thylakoid membrane in Synechococcus PCC7942.
authors.affiliation: Department of Chemistry, Faculty of Science, Nagoya University, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Nakai
authors.forename: A
authors.initials: A
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Omata
authors.forename: T
authors.initials: T
authors.lastname: Endo
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D003001:Cloning, Molecular; D000458:Cyanobacteria / Q000235:genetics*; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; D008969:Molecular Sequence Data; D000069816:SEC Translocation Channels; D017386:Sequence Homology, Amino Acid
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; D000069816:SEC Translocation Channels; C057841:SecY protein, E coli