title: Occurrence of two structural types of mercury reductases among gram-positive bacteria.
abstract: Structural variants of mercury reductase containing the N-terminal domain, which is easily cleaved by trypsin, have been found in Gram-positive bacteria with a low genomic G + C content (Bacillus, Staphylococcus and, possibly, some other genera). Mercury reductases without the N-terminal domain and relatively resistant to limited proteolysis are typical for Gram-positive bacteria with a high genomic G + C content (Arthrobacter, Citreobacterium, Micrococcus, Mycobacterium, Rhodococcus). Both types of mercury reductase genes may be located on plasmids.
authors.affiliation: Institute of Molecular Genetics, U.S.S.R. Academy of Sciences, Moscow.
authors.forename: E S
authors.initials: ES
authors.lastname: Bogdanova
authors.forename: S Z
authors.initials: SZ
authors.lastname: Mindlin
mesh_terms: D001482:Base Composition; D006094:Gram-Positive Bacteria / Q000145:classification / Q000201:enzymology*; D010088:Oxidoreductases / Q000032:analysis / Q000235:genetics* / Q000378:metabolism; D010802:Phylogeny
chemical_list: D010088:Oxidoreductases; C021551:mercuric reductase