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UniProtKB/Swiss-Prot entry P27355


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name MEMG_METTR
Primary accession number P27355
Secondary accession numbers None
Integrated into Swiss-Prot on August 1, 1992
Sequence was last modified on January 23, 2007 (Sequence version 3)
Annotations were last modified on    November 25, 2008 (Entry version 54)
Name and origin of the protein
Protein name Methane monooxygenase component A gamma chain
Synonyms EC 1.14.13.25
Methane hydroxylase
Gene name
Name: mmoZ
From
Methylosinus trichosporium [TaxID: 426] 
Taxonomy Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Methylocystaceae; Methylosinus.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
STRAIN=OB3b;
PubMed=1904125 [NCBI, ExPASy, EBI, Israel, Japan]
Cardy D.L.N., Laidler V., Salmond G.P.C., Murrell J.C.;
"Molecular analysis of the methane monooxygenase (MMO) gene cluster of Methylosinus trichosporium OB3b.";
Mol. Microbiol. 5:335-342(1991).
[2]
PROTEIN SEQUENCE OF 2-12.
PubMed=1845980 [NCBI, ExPASy, EBI, Israel, Japan]
Fox B.G., Liu Y., Dege J.E., Lipscomb J.D.;
"Complex formation between the protein components of methane monooxygenase from Methylosinus trichosporium OB3b. Identification of sites of component interaction.";
J. Biol. Chem. 266:540-550(1991).
Comments
  • FUNCTION: Responsible for the initial oxygenation of methane to methanol in methanotrophs. It also catalyzes the monohydroxylation of a variety of unactivated alkenes, alicyclic, aromatic and heterocyclic compounds.
  • CATALYTIC ACTIVITY: Methane + NAD(P)H + O2 = methanol + NAD(P)+ + H2O.
  • SUBUNIT: M.trichosporium has two forms of methane monooxygenase, a soluble and a membrane-bound type. The soluble type consists of four components (A to D): protein A, comprising three chains, in an alpha-2, beta-2, gamma-2 configuration, is a nonheme iron protein containing an unusual mu-hydroxo bridge structure at its active site and interacts with both oxygen and methane.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
X55394; CAA39071.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR S15210; C39049.
3D structure databases
PDB
1MHY; X-ray; 2.00 A; G=1-169.[ExPASy / RCSB / EBI]
1MHZ; X-ray; 2.70 A; G=1-169.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1MHY; -.
1MHZ; -.
ModBase P27355.
Enzyme and pathway databases
BioCyc MetaCyc:MON-3869; -.
Ontologies
GO
GO:0015049; Molecular function: methane monooxygenase activity (inferred from electronic annotation from InterPro).
GO:0015947; Biological process: methane metabolic process (inferred from electronic annotation from InterPro).
GO:0055114; Biological process: oxidation reduction (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
InterPro IPR004222; Me_mOase_g.
IPR015952; Me_mOase_g_dom1.
IPR015953; Me_mOase_g_dom2.
Graphical view of domain structure.
Gene3D G3DSA:1.20.1280.10; Me_mOase_hydro_g_dom1; 1.
G3DSA:1.20.1280.30; Me_mOase_hydro_g_dom2; 1.
Pfam PF02964; MeMO_Hyd_G; 1.
Pfam graphical view of domain structure.
PIRSF PIRSF018503; Me_mOase_g; 1.
ProDom PD022203; MeMO_hydro_gamma; 1.
[Domain structure / List of seq. sharing at least 1 domain]
ProtoNet P27355.
Other
LinkHub P27355; -.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Direct protein sequencing; Monooxygenase; NADP; One-carbon metabolism; Oxidoreductase.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
INIT_MET   1     1        Removed. 
CHAIN   2   169  168     Methane monooxygenase component A gamma chain. PRO_0000096410
STRAND   7     9  3      
HELIX   11    21  11      
HELIX   26    40  15      
TURN   49    53  5      
HELIX   54    72  19      
HELIX   75    80  6      
HELIX   88   100  13      
HELIX   105   119  15      
TURN   120   123  4      
HELIX   126   144  19      
TURN   145   149  5      
HELIX   153   160  8      
STRAND   163   167  5      
Sequence information
Length: 169 AA [This is the length of the unprocessed precursor] Molecular weight: 19326 Da [This is the MW of the unprocessed precursor] CRC64: 460D4D8D234C2229 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MAKREPIHDN SIRTEWEAKI AKLTSVDQAT KFIQDFRLAY TSPFRKSYDI DVDYQYIERK 

        70         80         90        100        110        120 
IEEKLSVLKT EKLPVADLIT KATTGEDRAA VEATWIAKIK AAKSKYEADG IHIEFRQLYK 

       130        140        150        160 
PPVLPVNVFL RTDAALGTVL MEIRNTDYYG TPLEGLRKEP GVKVLHLQA 

P27355 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
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