Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1mroa1 All alpha proteins Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Alpha chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Ad1mroa2 Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase alpha and beta chain N-terminal domain Alpha chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Dd1mrod1 All alpha proteins Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Alpha chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Dd1mrod2 Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase alpha and beta chain N-terminal domain Alpha chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Bd1mrob1 All alpha proteins Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Beta chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Bd1mrob2 Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase alpha and beta chain N-terminal domain Beta chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Ed1mroe1 All alpha proteins Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Beta chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Ed1mroe2 Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase alpha and beta chain N-terminal domain Beta chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Cd1mroc_ Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase gamma chain Methyl-coenzyme M reductase gamma chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)
Fd1mrof_ Alpha and beta proteins (a+b) Ferredoxin-like Methyl-coenzyme M reductase subunits Methyl-coenzyme M reductase gamma chain Methyl-coenzyme M reductase gamma chain (Methanothermobacter marburgensis str. Marburg ) [TaxId: 79929 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033123 3001305 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyMethyl-coenzyme M reductase alpha and beta chain C-terminal domain 8033121 3000812 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyMethyl-coenzyme M reductase alpha and beta chain C-terminal domain 8033121 3000812 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033123 3001305 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyMethyl-coenzyme M reductase alpha and beta chain C-terminal domain 8033109 3000812 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033111 3001305 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033111 3001305 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyMethyl-coenzyme M reductase alpha and beta chain C-terminal domain 8033109 3000812 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033112 3001305 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyMethyl-coenzyme M reductase subunits 8033112 3001305 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMCR_alphae1mroA1 A: alpha bundlesX: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)H: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)T: Methyl-coenzyme M reductase alpha and beta chain-CF: MCR_alphaECOD (1.6)
AMCR_alpha_Ne1mroA2 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_alpha_NECOD (1.6)
DMCR_alphae1mroD1 A: alpha bundlesX: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)H: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)T: Methyl-coenzyme M reductase alpha and beta chain-CF: MCR_alphaECOD (1.6)
DMCR_alpha_Ne1mroD2 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_alpha_NECOD (1.6)
BMCR_betae1mroB1 A: alpha bundlesX: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)H: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)T: Methyl-coenzyme M reductase alpha and beta chain-CF: MCR_betaECOD (1.6)
BMCR_beta_Ne1mroB2 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_beta_NECOD (1.6)
EMCR_betae1mroE1 A: alpha bundlesX: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)H: Methyl-coenzyme M reductase alpha and beta chain-C (From Topology)T: Methyl-coenzyme M reductase alpha and beta chain-CF: MCR_betaECOD (1.6)
EMCR_beta_Ne1mroE2 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_beta_NECOD (1.6)
CMCR_gammae1mroC1 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_gammaECOD (1.6)
FMCR_gammae1mroF1 A: a+b two layersX: Alpha-beta plaitsH: Methyl-coenzyme M reductase subunits (From Topology)T: Methyl-coenzyme M reductase subunitsF: MCR_gammaECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, D
PF02745Methyl-coenzyme M reductase alpha subunit, N-terminal domain (MCR_alpha_N)Methyl-coenzyme M reductase alpha subunit, N-terminal domainMethyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (this family), 2 beta (Pfam:PF02241), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active ...Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (this family), 2 beta (Pfam:PF02241), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active sites [1]. The N-terminal domain has a ferredoxin-like fold.
Domain
A, D
PF02249Methyl-coenzyme M reductase alpha subunit, C-terminal domain (MCR_alpha)Methyl-coenzyme M reductase alpha subunit, C-terminal domainMethyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (this family), 2 beta (Pfam:PF02241), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active ...Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (this family), 2 beta (Pfam:PF02241), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active sites [1]. The C-terminal domain is comprised of an all-alpha multi-helical bundle.
Domain
B, E
PF02241Methyl-coenzyme M reductase beta subunit, C-terminal domain (MCR_beta)Methyl-coenzyme M reductase beta subunit, C-terminal domainMethyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (this family), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active ...Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (this family), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active sites [1]. The C-terminal domain of MCR beta has an all-alpha fold with buried central helix.
Domain
B, E
PF02783Methyl-coenzyme M reductase beta subunit, N-terminal domain (MCR_beta_N)Methyl-coenzyme M reductase beta subunit, N-terminal domainMethyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (this family), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active ...Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (this family), and 2 gamma (Pfam:PF02240) subunits with two identical nickel porphinoid active sites [1]. The N-terminal domain has an alpha/beta ferredoxin-like fold.
Domain
C, F
PF02240Methyl-coenzyme M reductase gamma subunit (MCR_gamma)Methyl-coenzyme M reductase gamma subunitMethyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (Pfam:PF02241), and 2 gamma (this family) subunits with two identical nickel porphinoid activ ...Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (Pfam:PF02249), 2 beta (Pfam:PF02241), and 2 gamma (this family) subunits with two identical nickel porphinoid active sites [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, D
METHYL-COENZYME M REDUCTASE
B, E
METHYL-COENZYME M REDUCTASE
C, F
METHYL-COENZYME M REDUCTASE

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
A, D
AGM Parent Component: ARG

RESIDAA0272

PSI-MOD :  5-methyl-L-arginine MOD:00277
A, D
GL3 Parent Component: GLY

RESIDAA0272 , AA0265

PSI-MOD :  5-methyl-L-arginine MOD:00277 , 1-thioglycine (internal) MOD:00270 , 1-thioglycine (C-terminal) MOD:01623
A, D
MGN Parent Component: GLN

RESIDAA0272 , AA0265 , AA0273

PSI-MOD :  5-methyl-L-arginine MOD:00277 , 1-thioglycine (internal) MOD:00270 , 1-thioglycine (C-terminal) MOD:01623 , 2-methyl-L-glutamine MOD:00278
A, D
MHS Parent Component: HIS

RESIDAA0272 , AA0265 , AA0273 , AA0073

PSI-MOD :  5-methyl-L-arginine MOD:00277 , 1-thioglycine (internal) MOD:00270 , 1-thioglycine (C-terminal) MOD:01623 , 2-methyl-L-glutamine MOD:00278 , 3'-methyl-L-histidine MOD:00082
A, D
SMC Parent Component: CYS

RESIDAA0272 , AA0265 , AA0273 , AA0073 , AA0234

PSI-MOD :  5-methyl-L-arginine MOD:00277 , 1-thioglycine (internal) MOD:00270 , 1-thioglycine (C-terminal) MOD:01623 , 2-methyl-L-glutamine MOD:00278 , 3'-methyl-L-histidine MOD:00082 , S-methyl-L-cysteine MOD:00239

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
A, D, E
coenzyme-B sulfoethylthiotransferase  M-CSA #156

Methyl coenzyme M Reductase is responsible for the last step in methane production by methanogenic archaea. It utilises the ability of Nickel to adopt oxidation states I, II and III in order to catalyse the conversion of methyl coenzyme M and methyl coenzyme B to give methane and a heterodisulphide compound between the two coenzymes, in a complex redox cycle. The enzyme, like many found in archaea, is able to withstand high temperatures and salt content.

Defined by 5 residues: GLN:A-146 [auth A-147]TYR:D-332 [auth D-333]GLY:D-444 [auth D-445]ASN:D-480 [auth D-481]TYR:E-366 [auth E-367]
 | 
 
Explore in 3DM-CSA Motif Definition
EC: 1.8 (PDB Primary Data)