Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043858 3000609 SCOP2B (2022-06-29)
D [auth L]SCOP2B SuperfamilyCobalamin (vitamin B12)-dependent enzymes 8043858 3000609 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyB12-dependent dehydatase associated subunit 8044419 3000491 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyB12-dependent dehydatase associated subunit 8044419 3000491 SCOP2B (2022-06-29)
F [auth M]SCOP2B SuperfamilyDiol dehydratase, gamma subunit 8036835 3001460 SCOP2B (2022-06-29)
C [auth G]SCOP2B SuperfamilyDiol dehydratase, gamma subunit 8036835 3001460 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADehydratase_LUe1dioA1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: Dehydratase_LUECOD (1.6)
D [auth L]Dehydratase_LUe1dioL1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: Dehydratase_LUECOD (1.6)
BDehydratase_MUe1dioB1 A: a/b three-layered sandwichesX: B12-dependent dehydratase associated subunit (From Topology)H: B12-dependent dehydratase associated subunit (From Topology)T: B12-dependent dehydratase associated subunitF: Dehydratase_MUECOD (1.6)
EDehydratase_MUe1dioE1 A: a/b three-layered sandwichesX: B12-dependent dehydratase associated subunit (From Topology)H: B12-dependent dehydratase associated subunit (From Topology)T: B12-dependent dehydratase associated subunitF: Dehydratase_MUECOD (1.6)
F [auth M]Dehydratase_SUe1dioM1 A: alpha bundlesX: Diol dehydratase, gamma subunit (From Topology)H: Diol dehydratase, gamma subunit (From Topology)T: Diol dehydratase, gamma subunitF: Dehydratase_SUECOD (1.6)
C [auth G]Dehydratase_SUe1dioG1 A: alpha bundlesX: Diol dehydratase, gamma subunit (From Topology)H: Diol dehydratase, gamma subunit (From Topology)T: Diol dehydratase, gamma subunitF: Dehydratase_SUECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

ChainsEnzyme NameDescriptionCatalytic Residues
propanediol dehydratase  M-CSA #494

Propanediol dehydratsase, a diol dehydratse (DDH), catalyses the conversion of 1,2-propanediol, glycerol, and 1,2-ethanediol to the corresponding aldehydes via a coenzyme B12 (adenosylcobalamin)-dependent radical mechanism.

It is also dependent on a metal ion, there is still some debate as to whether this is potassium or calcium. QM/MM studies have suggested that Ca(II) is more likely.

Defined by 7 residues: GLN:A-141HIS:A-143GLU:A-170GLU:A-221GLN:A-296ASP:A-335SER:A-362
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