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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1reqa1 Alpha and beta proteins (a/b) TIM beta/alpha-barrel Cobalamin (vitamin B12)-dependent enzymes Methylmalonyl-CoA mutase, N-terminal (CoA-binding) domain Methylmalonyl-CoA mutase alpha subunit, domain 1 (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Ad1reqa2 Alpha and beta proteins (a/b) Flavodoxin-like Cobalamin (vitamin B12)-binding domain Cobalamin (vitamin B12)-binding domain Methylmalonyl-CoA mutase alpha subunit, C-terminal domain (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Cd1reqc1 Alpha and beta proteins (a/b) TIM beta/alpha-barrel Cobalamin (vitamin B12)-dependent enzymes Methylmalonyl-CoA mutase, N-terminal (CoA-binding) domain Methylmalonyl-CoA mutase alpha subunit, domain 1 (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Cd1reqc2 Alpha and beta proteins (a/b) Flavodoxin-like Cobalamin (vitamin B12)-binding domain Cobalamin (vitamin B12)-binding domain Methylmalonyl-CoA mutase alpha subunit, C-terminal domain (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Bd1reqb1 Alpha and beta proteins (a/b) TIM beta/alpha-barrel Cobalamin (vitamin B12)-dependent enzymes Methylmalonyl-CoA mutase, N-terminal (CoA-binding) domain Methylmalonyl-CoA mutase beta subunit, domain 1 (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Bd1reqb2 Alpha and beta proteins (a/b) Flavodoxin-like Cobalamin (vitamin B12)-binding domain Cobalamin (vitamin B12)-binding domain Methylmalonyl-CoA mutase beta subunit, C-terminal domain (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Dd1reqd1 Alpha and beta proteins (a/b) TIM beta/alpha-barrel Cobalamin (vitamin B12)-dependent enzymes Methylmalonyl-CoA mutase, N-terminal (CoA-binding) domain Methylmalonyl-CoA mutase beta subunit, domain 1 (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)
Dd1reqd2 Alpha and beta proteins (a/b) Flavodoxin-like Cobalamin (vitamin B12)-binding domain Cobalamin (vitamin B12)-binding domain Methylmalonyl-CoA mutase beta subunit, C-terminal domain (Propionibacterium freudenreichii subsp. shermanii ) [TaxId: 1752 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043843 3000609 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCobalamin (vitamin B12)-binding domain 8044101 3001260 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCobalamin (vitamin B12)-binding domain 8044101 3001260 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043843 3000609 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043845 3000609 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCobalamin (vitamin B12)-binding domain 8044102 3001260 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyCobalamin (vitamin B12)-binding domain 8044102 3001260 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043845 3000609 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMM_CoA_mutasee1reqA1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: MM_CoA_mutaseECOD (1.6)
AB12-bindinge1reqA2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Class I glutamine amidotransferase-likeT: CheY-likeF: B12-bindingECOD (1.6)
CMM_CoA_mutasee1reqC1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: MM_CoA_mutaseECOD (1.6)
CB12-bindinge1reqC2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Class I glutamine amidotransferase-likeT: CheY-likeF: B12-bindingECOD (1.6)
BMM_CoA_mutasee1reqB1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: MM_CoA_mutaseECOD (1.6)
BmmCoA_mut_betae1reqB2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Class I glutamine amidotransferase-likeT: CheY-likeF: mmCoA_mut_betaECOD (1.6)
DMM_CoA_mutasee1reqD1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: MM_CoA_mutaseECOD (1.6)
DmmCoA_mut_betae1reqD2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Class I glutamine amidotransferase-likeT: CheY-likeF: mmCoA_mut_betaECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C
PF02310B12 binding domain (B12-binding)B12 binding domainThis domain binds to B12 (adenosylcobamide)[1-3], it is found in several enzymes, such as glutamate mutase Swiss:Q05488, methionine synthase Swiss:Q99707 and methylmalonyl-CoA mutase Swiss:P22033. It contains a conserved DxHxxGx(41)SxVx(26)GG motif, ...This domain binds to B12 (adenosylcobamide)[1-3], it is found in several enzymes, such as glutamate mutase Swiss:Q05488, methionine synthase Swiss:Q99707 and methylmalonyl-CoA mutase Swiss:P22033. It contains a conserved DxHxxGx(41)SxVx(26)GG motif, which is important for B12 binding [2].
Domain
A, C
PF01642Methylmalonyl-CoA mutase (MM_CoA_mutase)Methylmalonyl-CoA mutase- Family
B, D
PF01642Methylmalonyl-CoA mutase (MM_CoA_mutase)Methylmalonyl-CoA mutase- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C
METHYLMALONYL-COA MUTASE - -
B, D
METHYLMALONYL-COA MUTASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
methylmalonyl-CoA mutase  M-CSA #62

Isomerising two important metabolites gives this enzyme significance in the degradation of some amino acids and odd-chain fatty acids, as well as (in bacteria) the biosynthesis of propionate. Like several other mutases, it uses adenosylcobalamin (Vitamin B12) to produce the free radicals essential for the rearrangement, and its sequence is rather well conserved between prokaryotes and eukaryotes.

Defined by 6 residues: TYR:A-88 [auth A-89]TYR:A-242 [auth A-243]HIS:A-243 [auth A-244]LYS:A-603 [auth A-604]ASP:A-607 [auth A-608]HIS:A-609 [auth A-610]
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