L08050.1

Detailed information

Microorganism
Nitrosomonas europaea ATCC 19718

Taxonomy
Phylum : Proteobacteria Class : Betaproteobacteria Order : Nitrosomonadales Family : Nitrosomonadaceae Genus : Nitrosomonas

Isolation Source
nan

Enzyme Name
putative ammonia monooxygenase subunit B

Protein Information
Pro_GenBank I.D： AAA66194.1 Length：276 aa Protein FASTA_sequence: Link

Information about Article
Reference：McTavish et al., 1993 Title：Sequence of the gene coding for ammonia monooxygenase in Nitrosomonas europaea Pubmed ID：8468301.0 Pubmed link： Link Full research link： Link Abstract：Nitrosomonas europaea, a chemolithotrophic bacterium, was found to contain two copies of the gene coding for the presumed active site polypeptide of ammonia monooxygenase, the 32-kDa acetylene-binding polypeptide. One copy of this gene was cloned, and its complete nucleotide sequence is presented. Immediately downstream of this gene, in the same operon, is the gene for a 40-kDa polypeptide that copurifies with the ammonia monooxygenase acetylene-binding polypeptide. The sequence of the first 692 nucleotides of this structural gene, coding for about two-thirds of the protein, is presented. These sequences are the first sequences of protein-encoding genes from an ammonia-oxidizing autotrophic nitrifying bacterium. The two protein sequences are not homologous with the sequences of any other monooxygenase. From radioactive labelling of ammonia monooxygenase with [14C]acetylene it was determined that there are 23 nmol of ammonia monooxygenase per g of cells. The kcat of ammonia monooxygenase for NH3 in vivo was calculated to be 20 s-1.

Reference：McTavish et al., 1993
Title：Sequence of the gene coding for ammonia monooxygenase in Nitrosomonas europaea
Pubmed ID：8468301.0
Pubmed link： Link
Full research link： Link
Abstract：Nitrosomonas europaea, a chemolithotrophic bacterium, was found to contain two copies of the gene coding for the presumed active site polypeptide of ammonia monooxygenase, the 32-kDa acetylene-binding polypeptide. One copy of this gene was cloned, and its complete nucleotide sequence is presented. Immediately downstream of this gene, in the same operon, is the gene for a 40-kDa polypeptide that copurifies with the ammonia monooxygenase acetylene-binding polypeptide. The sequence of the first 692 nucleotides of this structural gene, coding for about two-thirds of the protein, is presented. These sequences are the first sequences of protein-encoding genes from an ammonia-oxidizing autotrophic nitrifying bacterium. The two protein sequences are not homologous with the sequences of any other monooxygenase. From radioactive labelling of ammonia monooxygenase with [14C]acetylene it was determined that there are 23 nmol of ammonia monooxygenase per g of cells. The kcat of ammonia monooxygenase for NH3 in vivo was calculated to be 20 s-1.