title: A functional link between RuBisCO-like protein of Bacillus and photosynthetic RuBisCO.
abstract: The genomes of several nonphotosynthetic bacteria, such as Bacillus subtilis, and some Archaea include genes for proteins with sequence homology to the large subunit of ribulose bisphosphate carboxylase/oxygenase (RuBisCO). We found that such a RuBisCO-like protein (RLP) from B. subtilis catalyzed the 2,3-diketo-5-methylthiopentyl-1-phosphate enolase reaction in the methionine salvage pathway. A growth-defective mutant, in which the gene for this RLP had been disrupted, was rescued by the gene for RuBisCOfrom the photosynthetic bacterium Rhodospirillum rubrum. Thus, the photosynthetic RuBisCO from R. rubrum retains the ability to function in the methionine salvage pathway in B. subtilis.
authors.affiliation: Graduate School of Biological Sciences, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Ashida
authors.forename: Yohtaro
authors.initials: Y
authors.lastname: Saito
authors.forename: Chojiro
authors.initials: C
authors.lastname: Kojima
authors.forename: Kazuo
authors.initials: K
authors.lastname: Kobayashi
authors.forename: Naotake
authors.initials: N
authors.lastname: Ogasawara
authors.forename: Akiho
authors.initials: A
authors.lastname: Yokota
mesh_terms: D000595:Amino Acid Sequence; D001412:Bacillus subtilis / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development; D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D002384:Catalysis; D005798:Genes, Bacterial; D009682:Magnetic Resonance Spectroscopy; D008715:Methionine / Q000378:metabolism; D008969:Molecular Sequence Data; D009154:Mutation; D009876:Operon; D010802:Phylogeny; D011994:Recombinant Proteins / Q000378:metabolism; D012247:Rhodospirillum rubrum / Q000201:enzymology* / Q000235:genetics; D012273:Ribulose-Bisphosphate Carboxylase / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D016415:Sequence Alignment; D013865:Thioglycosides / Q000378:metabolism
chemical_list: D001426:Bacterial Proteins; D011994:Recombinant Proteins; D013865:Thioglycosides; C001955:5-methylthioribose; D008715:Methionine; D012273:Ribulose-Bisphosphate Carboxylase