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UniProtKB/Swiss-Prot entry P22869


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

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Entry information
Entry name MEMA_METCA
Primary accession number P22869
Secondary accession number Q609N8
Integrated into Swiss-Prot on August 1, 1991
Sequence was last modified on December 7, 2004 (Sequence version 3)
Annotations were last modified on    November 25, 2008 (Entry version 74)
Name and origin of the protein
Protein name Methane monooxygenase component A alpha chain
Synonyms EC 1.14.13.25
Methane hydroxylase
Gene name
Name: mmoX
OrderedLocusNames: MCA1194
From
Methylococcus capsulatus [TaxID: 414] [HAMAP proteome]
Taxonomy Bacteria; Proteobacteria; Gammaproteobacteria; Methylococcales; Methylococcaceae; Methylococcus.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 1-6.
STRAIN=Bath / NCIMB 11132;
DOI=10.1016/0378-1119(90)90158-N; PubMed=2205538 [NCBI, ExPASy, EBI, Israel, Japan]
Stainthorpe A.C., Lees V., Salmond G.P.C., Dalton H., Murrell J.C.;
"The methane monooxygenase gene cluster of Methylococcus capsulatus (Bath).";
Gene 91:27-34(1990).
[2]
SEQUENCE REVISION TO 84; 306 AND 444.
McDonald I., Murrell J.C.;
Submitted (MAY-2000) to the EMBL/GenBank/DDBJ databases.
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=Bath / NCIMB 11132;
DOI=10.1371/journal.pbio.0020303; PubMed=15383840 [NCBI, ExPASy, EBI, Israel, Japan]
Ward N.L., Larsen O., Sakwa J., Bruseth L., Khouri H.M., Durkin A.S., Dimitrov G., Jiang L., Scanlan D., Kang K.H., Lewis M.R., Nelson K.E., Methe B.A., Wu M., Heidelberg J.F., Paulsen I.T., Fouts D.E., Ravel J., Tettelin H., Ren Q., Read T.D., DeBoy R.T., Seshadri R., Salzberg S.L., Jensen H.B., Birkeland N.K., Nelson W.C., Dodson R.J., Grindhaug S.H., Holt I.E., Eidhammer I., Jonasen I., Vanaken S., Utterback T.R., Feldblyum T.V., Fraser C.M., Lillehaug J.R., Eisen J.A.;
"Genomic insights into methanotrophy: the complete genome sequence of Methylococcus capsulatus (Bath).";
PLoS Biol. 2:1616-1628(2004).
[4]
X-RAY CRYSTALLOGRAPHY (2.2 ANGSTROMS).
DOI=10.1038/366537a0; PubMed=8255292 [NCBI, ExPASy, EBI, Israel, Japan]
Rosenzweig A.C., Frederick C.A., Lippard S.J., Nordlund P.;
"Crystal structure of a bacterial non-haem iron hydroxylase that catalyses the biological oxidation of methane.";
Nature 366:537-543(1993).
[5]
X-RAY CRYSTALLOGRAPHY (1.7 ANGSTROMS).
DOI=10.1016/1074-5521(95)90222-8; PubMed=9432288 [NCBI, ExPASy, EBI, Israel, Japan]
Rosenzweig A.C., Nordlund P., Takahara P.M., Frederick C.A., Lippard S.J.;
"Geometry of the soluble methane monooxygenase catalytic diiron center in two oxidation states.";
Chem. Biol. 2:409-418(1995).
[6]
X-RAY CRYSTALLOGRAPHY (1.7 ANGSTROMS).
STRAIN=Bath / NCIMB 11132;
DOI=10.1002/(SICI)1097-0134(199710)29:2<141::AID-PROT2>3.3.CO;2-W; PubMed=9329079 [NCBI, ExPASy, EBI, Israel, Japan]
Rosenzweig A.C., Brandstetter H., Whittington D.A., Nordlund P., Lippard S.J., Frederick C.A.;
"Crystal structures of the methane monooxygenase hydroxylase from Methylococcus capsulatus (Bath): implications for substrate gating and component interactions.";
Proteins 29:141-152(1997).
[7]
X-RAY CRYSTALLOGRAPHY (1.96 ANGSTROMS).
STRAIN=Bath / NCIMB 11132;
DOI=10.1021/ja003240n; PubMed=11456616 [NCBI, ExPASy, EBI, Israel, Japan]
Whittington D.A., Lippard S.J.;
"Crystal structures of the soluble methane monooxygenase hydroxylase from Methylococcus capsulatus (Bath) demonstrating geometrical variability at the dinuclear iron active site.";
J. Am. Chem. Soc. 123:827-838(2001).
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.
  • COFACTOR: Binds 2 iron ions.
  • SUBUNIT: M.capsulatus 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
M90050; AAB62392.3; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AE017282; AAU92736.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR JQ0702; JQ0702.
RefSeq YP_113659.1; -.
3D structure databases
PDB
1FYZ; X-ray; 2.15 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ0; X-ray; 2.07 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ1; X-ray; 1.96 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ2; X-ray; 2.15 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ3; X-ray; 2.03 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ4; X-ray; 2.38 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ5; X-ray; 2.40 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ6; X-ray; 2.05 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ7; X-ray; 1.96 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ8; X-ray; 2.10 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZ9; X-ray; 2.30 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZH; X-ray; 2.60 A; A/B=1-527.[ExPASy / RCSB / EBI]
1FZI; X-ray; 3.30 A; A/B=1-527.[ExPASy / RCSB / EBI]
1MMO; X-ray; 2.20 A; D/E=15-526.[ExPASy / RCSB / EBI]
1MTY; X-ray; 1.70 A; D/E=15-526.[ExPASy / RCSB / EBI]
1XMF; X-ray; 2.32 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XMG; X-ray; 2.10 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XMH; X-ray; 2.32 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XU3; X-ray; 2.30 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XU5; X-ray; 1.96 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVB; X-ray; 1.80 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVC; X-ray; 2.00 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVD; X-ray; 2.30 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVE; X-ray; 2.40 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVF; X-ray; 2.00 A; A/B=1-527.[ExPASy / RCSB / EBI]
1XVG; X-ray; 1.96 A; A/B=1-527.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1FYZ; -.
1FZ0; -.
1FZ1; -.
1FZ2; -.
1FZ3; -.
1FZ4; -.
1FZ5; -.
1FZ6; -.
1FZ7; -.
1FZ8; -.
1FZ9; -.
1FZH; -.
1FZI; -.
1MMO; -.
1MTY; -.
1XMF; -.
1XMG; -.
1XMH; -.
1XU3; -.
1XU5; -.
1XVB; -.
1XVC; -.
1XVD; -.
1XVE; -.
1XVF; -.
1XVG; -.
ModBase P22869.
Enzyme and pathway databases
BioCyc MCAP243233:MCA_1194-MON; -.
MetaCyc:MON-3861; -.
Ontologies
GO
GO:0005506; Molecular function: iron ion binding (inferred from electronic annotation from UniProtKB-KW).
GO:0015049; Molecular function: methane monooxygenase activity (inferred from electronic annotation from EC).
GO:0006725; Biological process: cellular aromatic compound metabolic process (inferred from electronic annotation from InterPro).
GO:0006730; Biological process: one-carbon compound metabolic process (inferred from electronic annotation from UniProtKB-KW).
GO:0055114; Biological process: oxidation reduction (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
InterPro IPR003430; Phenol_Hydrox.
IPR012348; Ribncl_red_rel.
Graphical view of domain structure.
Gene3D G3DSA:1.10.620.20; Ribncl_red_rel; 1.
Pfam PF02332; Phenol_Hydrox; 1.
Pfam graphical view of domain structure.
ProtoNet P22869.
Genome annotation databases
GeneID 3104807; -.
GenomeReviews AE017282_GR; MCA1194.
KEGG mca:MCA1194; -.
NMPDR fig|243233.4.peg.361; -.
TIGR MCA1194; -.
Phylogenomic databases
HOGENOM P22869; -.
Other
LinkHub P22869; -.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Complete proteome; Direct protein sequencing; Iron; Metal-binding; Monooxygenase; NADP; One-carbon metabolism; Oxidoreductase.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
CHAIN   1   527  527     Methane monooxygenase component A alpha chain. PRO_0000096405
ACT_SITE   151   151        Potential. 
METAL   114   114        Iron 1. 
METAL   144   144        Iron 1. 
METAL   147   147        Iron 1. 
METAL   209   209        Iron 2. 
METAL   243   243        Iron 2. 
METAL   246   246        Iron 2. 
CONFLICT   306   306        N -> D (in Ref. 2; AAB62392). 
CONFLICT   444   444        Q -> E (in Ref. 2; AAB62392). 
HELIX   25    29  5      
HELIX   30    35  6      
HELIX   64    83  20      
HELIX   85    88  4      
TURN   89    93  5      
HELIX   97   127  31      
HELIX   131   161  31      
TURN   166   170  5      
HELIX   171   174  4      
STRAND   177   179  3      
HELIX   180   188  9      
HELIX   190   193  4      
HELIX   197   204  8      
TURN   205   207  3      
HELIX   208   211  4      
HELIX   213   226  14      
HELIX   231   258  28      
HELIX   261   292  32      
HELIX   301   309  9      
HELIX   310   315  6      
HELIX   316   320  5      
HELIX   321   324  4      
HELIX   332   352  21      
HELIX   354   356  3      
STRAND   357   360  4      
HELIX   366   375  10      
HELIX   379   392  14      
TURN   393   396  4      
HELIX   404   410  7      
TURN   419   421  3      
TURN   427   429  3      
STRAND   436   441  6      
STRAND   444   450  7      
HELIX   451   459  9      
HELIX   461   463  3      
HELIX   469   473  5      
HELIX   478   484  7      
STRAND   492   496  5      
STRAND   498   500  3      
STRAND   503   505  3      
HELIX   509   513  5      
TURN   514   516  3      
HELIX   522   525  4      
Sequence information
Length: 527 AA [This is the length of the unprocessed precursor] Molecular weight: 60646 Da [This is the MW of the unprocessed precursor] CRC64: 953438FDF5208374 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MALSTATKAA TDALAANRAP TSVNAQEVHR WLQSFNWDFK NNRTKYATKY KMANETKEQF 

        70         80         90        100        110        120 
KLIAKEYARM EAVKDERQFG SLQDALTRLN AGVRVHPKWN ETMKVVSNFL EVGEYNAIAA 

       130        140        150        160        170        180 
TGMLWDSAQA AEQKNGYLAQ VLDEIRHTHQ CAYVNYYFAK NGQDPAGHND ARRTRTIGPL 

       190        200        210        220        230        240 
WKGMKRVFSD GFISGDAVEC SLNLQLVGEA CFTNPLIVAV TEWAAANGDE ITPTVFLSIE 

       250        260        270        280        290        300 
TDELRHMANG YQTVVSIAND PASAKYLNTD LNNAFWTQQK YFTPVLGMLF EYGSKFKVEP 

       310        320        330        340        350        360 
WVKTWNRWVY EDWGGIWIGR LGKYGVESPR SLKDAKQDAY WAHHDLYLLA YALWPTGFFR 

       370        380        390        400        410        420 
LALPDQEEME WFEANYPGWY DHYGKIYEEW RARGCEDPSS GFIPLMWFIE NNHPIYIDRV 

       430        440        450        460        470        480 
SQVPFCPSLA KGASTLRVHE YNGQMHTFSD QWGERMWLAE PERYECQNIF EQYEGRELSE 

       490        500        510        520 
VIAELHGLRS DGKTLIAQPH VRGDKLWTLD DIKRLNCVFK NPVKAFN 

P22869 in FASTA format

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