5A8R

METHYL-COENZYME M REDUCTASE II FROM METHANOTHERMOBACTER MARBURGENSIS AT 2.15 A RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d5a8rc_	Alpha and beta proteins (a+b)	Ferredoxin-like	Methyl-coenzyme M reductase subunits	Methyl-coenzyme M reductase gamma chain	automated matches	(Methanothermobacter marburgensis ) [TaxId: 145263 ],	SCOPe (2.08)
F	d5a8rf_	Alpha and beta proteins (a+b)	Ferredoxin-like	Methyl-coenzyme M reductase subunits	Methyl-coenzyme M reductase gamma chain	automated matches	(Methanothermobacter marburgensis ) [TaxId: 145263 ],	SCOPe (2.08)
I	d5a8ri_	Alpha and beta proteins (a+b)	Ferredoxin-like	Methyl-coenzyme M reductase subunits	Methyl-coenzyme M reductase gamma chain	automated matches	(Methanothermobacter marburgensis ) [TaxId: 145263 ],	SCOPe (2.08)
L	d5a8rl_	Alpha and beta proteins (a+b)	Ferredoxin-like	Methyl-coenzyme M reductase subunits	Methyl-coenzyme M reductase gamma chain	automated matches	(Methanothermobacter marburgensis ) [TaxId: 145263 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	Methyl-coenzyme M reductase subunits	8073481	3001305	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Methyl-coenzyme M reductase subunits	8073481	3001305	SCOP2B (2022-06-29)
I	SCOP2 Family	Methyl-coenzyme M reductase gamma chain	8073480	4001330	SCOP2 (2022-06-29)
I	SCOP2 Superfamily	Methyl-coenzyme M reductase subunits	8073481	3001305	SCOP2 (2022-06-29)
L	SCOP2B Superfamily	Methyl-coenzyme M reductase subunits	8073481	3001305	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	MCR_gamma	e5a8rC1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_gamma	ECOD (1.6)
F	MCR_gamma	e5a8rF1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_gamma	ECOD (1.6)
I	MCR_gamma	e5a8rI1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_gamma	ECOD (1.6)
L	MCR_gamma	e5a8rL1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_gamma	ECOD (1.6)
A	MCR_alpha	e5a8rA2	A: alpha bundles	X: 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-C	F: MCR_alpha	ECOD (1.6)
A	MCR_alpha_N	e5a8rA1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_alpha_N	ECOD (1.6)
D	MCR_alpha	e5a8rD1	A: alpha bundles	X: 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-C	F: MCR_alpha	ECOD (1.6)
D	MCR_alpha_N	e5a8rD2	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_alpha_N	ECOD (1.6)
G	MCR_alpha	e5a8rG2	A: alpha bundles	X: 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-C	F: MCR_alpha	ECOD (1.6)
G	MCR_alpha_N	e5a8rG1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_alpha_N	ECOD (1.6)
J	MCR_alpha	e5a8rJ2	A: alpha bundles	X: 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-C	F: MCR_alpha	ECOD (1.6)
J	MCR_alpha_N	e5a8rJ1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_alpha_N	ECOD (1.6)
B	MCR_beta	e5a8rB1	A: alpha bundles	X: 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-C	F: MCR_beta	ECOD (1.6)
B	MCR_beta_N	e5a8rB2	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_beta_N	ECOD (1.6)
E	MCR_beta	e5a8rE2	A: alpha bundles	X: 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-C	F: MCR_beta	ECOD (1.6)
E	MCR_beta_N	e5a8rE1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_beta_N	ECOD (1.6)
H	MCR_beta	e5a8rH2	A: alpha bundles	X: 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-C	F: MCR_beta	ECOD (1.6)
H	MCR_beta_N	e5a8rH1	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_beta_N	ECOD (1.6)
K	MCR_beta	e5a8rK1	A: alpha bundles	X: 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-C	F: MCR_beta	ECOD (1.6)
K	MCR_beta_N	e5a8rK2	A: a+b two layers	X: Alpha-beta plaits	H: Methyl-coenzyme M reductase subunits (From Topology)	T: Methyl-coenzyme M reductase subunits	F: MCR_beta_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	3.90.320.20	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
F	3.90.320.20	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
I	3.90.320.20	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
L	3.90.320.20	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
A	3.90.390.10	Alpha Beta	Alpha-Beta Complex	Methyl-coenzyme M Reductase	Chain A, domain 1	CATH (4.3.0)
A	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
D	3.90.390.10	Alpha Beta	Alpha-Beta Complex	Methyl-coenzyme M Reductase	Chain A, domain 1	CATH (4.3.0)
D	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
D	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
G	3.90.390.10	Alpha Beta	Alpha-Beta Complex	Methyl-coenzyme M Reductase	Chain A, domain 1	CATH (4.3.0)
G	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
G	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
J	3.90.390.10	Alpha Beta	Alpha-Beta Complex	Methyl-coenzyme M Reductase	Chain A, domain 1	CATH (4.3.0)
J	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
J	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
B	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
B	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
E	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
E	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
H	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
H	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
K	1.20.840.10	Mainly Alpha	Up-down Bundle	Methyl-coenzyme M Reductase	Chain B, domain 2	CATH (4.3.0)
K	3.30.70.470	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, F, I, L	PF02240	Methyl-coenzyme M reductase gamma subunit (MCR_gamma)	Methyl-coenzyme M reductase gamma subunit	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 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
A, D, G, J	PF02745	Methyl-coenzyme M reductase alpha subunit, N-terminal domain (MCR_alpha_N)	Methyl-coenzyme M reductase alpha subunit, N-terminal domain	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 ...	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, G, J	PF02249	Methyl-coenzyme M reductase alpha subunit, C-terminal domain (MCR_alpha)	Methyl-coenzyme M reductase alpha subunit, C-terminal domain	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 ...	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, H, K	PF02241	Methyl-coenzyme M reductase beta subunit, C-terminal domain (MCR_beta)	Methyl-coenzyme M reductase beta subunit, C-terminal domain	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 ...	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, H, K	PF02783	Methyl-coenzyme M reductase beta subunit, N-terminal domain (MCR_beta_N)	Methyl-coenzyme M reductase beta subunit, N-terminal domain	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 ...	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F, I, L	METHYL-COENZYME M REDUCTASE II, SUBUNIT BETA	coenzyme-B sulfoethylthiotransferase activity alkylthioltransferase activity transferase activity, transferring sulphur-containing groups transferase activity catalytic activity	cellular respiration energy derivation by oxidation of organic compounds alkane biosynthetic process methane metabolic process generation of precursor metabolites and energy hydrocarbon metabolic process alkane metabolic process biosynthetic process energy derivation by oxidation of reduced inorganic compounds methanogenesis metabolic process cellular process hydrocarbon biosynthetic process anaerobic respiration	-
A, D, G, J	METHYL-COENZYME M REDUCTASE II SUBUNIT ALPHA	coenzyme-B sulfoethylthiotransferase activity alkylthioltransferase activity transferase activity, transferring sulphur-containing groups transferase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	cellular respiration energy derivation by oxidation of organic compounds alkane biosynthetic process methane metabolic process generation of precursor metabolites and energy hydrocarbon metabolic process alkane metabolic process biosynthetic process energy derivation by oxidation of reduced inorganic compounds methanogenesis metabolic process cellular process hydrocarbon biosynthetic process anaerobic respiration	-
B, E, H, K	METHYL-COENZYME M REDUCTASE II SUBUNIT GAMMA	coenzyme-B sulfoethylthiotransferase activity alkylthioltransferase activity transferase activity, transferring sulphur-containing groups transferase activity catalytic activity	cellular respiration energy derivation by oxidation of organic compounds alkane biosynthetic process methane metabolic process generation of precursor metabolites and energy hydrocarbon metabolic process alkane metabolic process biosynthetic process energy derivation by oxidation of reduced inorganic compounds methanogenesis metabolic process cellular process hydrocarbon biosynthetic process anaerobic respiration	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F, I, L	IPR009024	Methyl-coenzyme M reductase, ferredoxin-like fold	Homologous Superfamily
C, F, I, L	IPR003178	Methyl-coenzyme M reductase, gamma subunit	Family
C, F, I, L	IPR036994	Methyl-coenzyme M reductase, gamma subunit superfamily	Homologous Superfamily
A, D, G, J	IPR009047	Methyl-coenzyme M reductase, alpha subunit, C-terminal	Domain
A, D, G, J	IPR009024	Methyl-coenzyme M reductase, ferredoxin-like fold	Homologous Superfamily
A, D, G, J	IPR003183	Methyl-coenzyme M reductase, alpha subunit, N-terminal	Domain
A, D, G, J	IPR008924	Methyl-coenzyme M reductase, alpha/beta subunit, C-terminal	Homologous Superfamily
A, D, G, J	IPR016212	Methyl coenzyme M reductase, alpha subunit	Family
A, D, G, J	IPR015823	Methyl-coenzyme M reductase, alpha subunit, N-terminal subdomain 2	Homologous Superfamily
A, D, G, J	IPR015811	Methyl-coenzyme M reductase, alpha subunit, N-terminal subdomain 1	Homologous Superfamily
B, E, H, K	IPR009024	Methyl-coenzyme M reductase, ferredoxin-like fold	Homologous Superfamily
B, E, H, K	IPR022680	Methyl-coenzyme M reductase, beta subunit, N-terminal	Domain
B, E, H, K	IPR008924	Methyl-coenzyme M reductase, alpha/beta subunit, C-terminal	Homologous Superfamily
B, E, H, K	IPR015823	Methyl-coenzyme M reductase, alpha subunit, N-terminal subdomain 2	Homologous Superfamily
B, E, H, K	IPR003179	Methyl-coenzyme M reductase, beta subunit	Family
B, E, H, K	IPR022679	Methyl-coenzyme M reductase, beta subunit, C-terminal	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, D, G, J	AGM	Parent Component: ARG RESID: AA0272 PSI-MOD : 5-methyl-L-arginine MOD:00277
A, D, G, J	DYA	Parent Component: ASP RESID: AA0272
A, D, G, J	GL3	Parent Component: GLY RESID: AA0272 , AA0265 PSI-MOD : 5-methyl-L-arginine MOD:00277 , 1-thioglycine (internal) MOD:00270 , 1-thioglycine (C-terminal) MOD:01623
A, D, G, J	MGN	Parent Component: GLN RESID: AA0272 , 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, G, J	MHS	Parent Component: HIS RESID: AA0272 , 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, G, J	SMC	Parent Component: CYS RESID: AA0272 , 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