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MTRA_METV3
ID   MTRA_METV3              Reviewed;         242 AA.
AC   D7DUI0;
DT   11-JAN-2011, integrated into UniProtKB/Swiss-Prot.
DT   10-AUG-2010, sequence version 1.
DT   03-AUG-2022, entry version 52.
DE   RecName: Full=Tetrahydromethanopterin S-methyltransferase subunit A {ECO:0000255|HAMAP-Rule:MF_01093};
DE            EC=2.1.1.86 {ECO:0000255|HAMAP-Rule:MF_01093};
DE   AltName: Full=N5-methyltetrahydromethanopterin--coenzyme M methyltransferase subunit A {ECO:0000255|HAMAP-Rule:MF_01093};
GN   Name=mtrA {ECO:0000255|HAMAP-Rule:MF_01093}; OrderedLocusNames=Mvol_1133;
OS   Methanococcus voltae (strain ATCC BAA-1334 / A3).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanococcaceae; Methanococcus.
OX   NCBI_TaxID=456320;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1334 / A3;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA   Pitluck S., Lowry S., Clum A., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Whitman W.B., Woyke T.;
RT   "Complete sequence of Methanococcus voltae A3.";
RL   Submitted (MAY-2010) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Part of a complex that catalyzes the formation of methyl-
CC       coenzyme M and tetrahydromethanopterin from coenzyme M and methyl-
CC       tetrahydromethanopterin. This is an energy-conserving, sodium-ion
CC       translocating step. {ECO:0000255|HAMAP-Rule:MF_01093}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-methyl-5,6,7,8-tetrahydromethanopterin + coenzyme M + 2
CC         Na(+)(in) = 5,6,7,8-tetrahydromethanopterin + methyl-coenzyme M + 2
CC         Na(+)(out); Xref=Rhea:RHEA:53492, ChEBI:CHEBI:29101,
CC         ChEBI:CHEBI:58103, ChEBI:CHEBI:58116, ChEBI:CHEBI:58286,
CC         ChEBI:CHEBI:58319; EC=2.1.1.86; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01093};
CC   -!- COFACTOR:
CC       Name=5-hydroxybenzimidazolylcob(I)amide; Xref=ChEBI:CHEBI:60494;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01093};
CC       Note=Binds 1 5-hydroxybenzimidazolylcobamide group. {ECO:0000255|HAMAP-
CC       Rule:MF_01093};
CC   -!- PATHWAY: One-carbon metabolism; methanogenesis from CO(2); methyl-
CC       coenzyme M from 5,10-methylene-5,6,7,8-tetrahydromethanopterin: step
CC       2/2. {ECO:0000255|HAMAP-Rule:MF_01093}.
CC   -!- SUBUNIT: The complex is composed of 8 subunits; MtrA, MtrB, MtrC, MtrD,
CC       MtrE, MtrF, MtrG and MtrH. {ECO:0000255|HAMAP-Rule:MF_01093}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01093};
CC       Single-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01093}.
CC   -!- SIMILARITY: Belongs to the MtrA family. {ECO:0000255|HAMAP-
CC       Rule:MF_01093}.
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DR   EMBL; CP002057; ADI36790.1; -; Genomic_DNA.
DR   RefSeq; WP_013180518.1; NC_014222.1.
DR   AlphaFoldDB; D7DUI0; -.
DR   SMR; D7DUI0; -.
DR   STRING; 456320.Mvol_1133; -.
DR   EnsemblBacteria; ADI36790; ADI36790; Mvol_1133.
DR   GeneID; 9276358; -.
DR   KEGG; mvo:Mvol_1133; -.
DR   eggNOG; arCOG03221; Archaea.
DR   HOGENOM; CLU_100863_0_0_2; -.
DR   OMA; EVKGHIT; -.
DR   OrthoDB; 89197at2157; -.
DR   UniPathway; UPA00640; UER00698.
DR   Proteomes; UP000007722; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0050897; F:cobalt ion binding; IEA:InterPro.
DR   GO; GO:0030269; F:tetrahydromethanopterin S-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019386; P:methanogenesis, from carbon dioxide; IEA:UniProtKB-UniPathway.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006814; P:sodium ion transport; IEA:InterPro.
DR   HAMAP; MF_01093; MtrA; 1.
DR   InterPro; IPR030688; MeTrfase_MtrA/MtxA.
DR   InterPro; IPR005778; MtrA.
DR   Pfam; PF04208; MtrA; 1.
DR   PIRSF; PIRSF500207; MtrA; 1.
DR   PIRSF; PIRSF009452; MtrA_MtxA; 1.
DR   TIGRFAMs; TIGR01111; mtrA; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cobalt; Membrane; Methanogenesis; Methyltransferase;
KW   One-carbon metabolism; Reference proteome; Transferase; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..242
FT                   /note="Tetrahydromethanopterin S-methyltransferase subunit
FT                   A"
FT                   /id="PRO_0000403064"
FT   TOPO_DOM        1..221
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01093"
FT   TRANSMEM        222..242
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01093"
FT   BINDING         85
FT                   /ligand="5-hydroxybenzimidazolylcob(I)amide"
FT                   /ligand_id="ChEBI:CHEBI:60494"
FT                   /ligand_note="cofactor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01093"
SQ   SEQUENCE   242 AA;  25666 MW;  F4814291FFADD1B6 CRC64;
     MADKKAPATG WPVANGEYVV GNPESCVAVV TLGSHGLDEA AIEAGAAISG PCHTENLGIE
     KVIVNYISNP NIRFMVVTGS EVQGHITGQC FKALYENGIG DDGGIIGAKG AIPFMENVGQ
     EPVARFQNQI VELIDMIDSE DKGKIQQTVK DCISKDPGAF EEDAMVIDLE GKAGGAGEEE
     GSSVKITSPE MAIIESRMRI ISKQIEQAAI VNKYNSGYYN GKIQGVAIGL FLSLLIYSML
     LI
 
 
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