Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyQuinoprotein alcohol dehydrogenase-like 8036898 3001727 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyQuinoprotein alcohol dehydrogenase-like 8036898 3001727 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyMethanol dehydrogenase subunit 8036900 3001764 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyMethanol dehydrogenase subunit 8036900 3001764 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APQQ_2e1g72A1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 8-bladedF: PQQ_2ECOD (1.6)
CPQQ_2e1g72C1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 8-bladedF: PQQ_2ECOD (1.6)
BMDHe1g72B1 A: extended segmentsX: Methanol dehydrogenase subunit (From Topology)H: Methanol dehydrogenase subunit (From Topology)T: Methanol dehydrogenase subunitF: MDHECOD (1.6)
DMDHe1g72D1 A: extended segmentsX: Methanol dehydrogenase subunit (From Topology)H: Methanol dehydrogenase subunit (From Topology)T: Methanol dehydrogenase subunitF: MDHECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.140.10.10 Mainly Beta 8 Propeller Methanol Dehydrogenase Chain ACATH (4.3.0)
C2.140.10.10 Mainly Beta 8 Propeller Methanol Dehydrogenase Chain ACATH (4.3.0)
B4.10.160.10 Few Secondary Structures Irregular Methanol Dehydrogenase Chain BCATH (4.3.0)
D4.10.160.10 Few Secondary Structures Irregular Methanol Dehydrogenase Chain BCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C
PF13360PQQ-like domain (PQQ_2)PQQ-like domain- Repeat
B, D
PF02315Methanol dehydrogenase beta subunit (MDH)Methanol dehydrogenase beta subunitMethanol dehydrogenase (MDH) is a bacterial periplasmic quinoprotein that oxidises methanol to formaldehyde. MDH is a tetramer of two alpha and two beta subunits. This family contains the small beta subunit.Domain

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

ChainsEnzyme NameDescriptionCatalytic Residues
methanol dehydrogenase (cytochrome c)  M-CSA #99

Methanol dehydrogenase (MEDH) is a periplasmic quinoprotein. It catalyses the oxidation of methanol and other small alcohols to the corresponding aldehyde with the release of two protons and two electrons. The enzyme uses the pyrroloquinolinequinone (PQQ) cofactor.

MEDH is an H2L2 heterotetramer, made of two heavy (H) chains and two light (L) chains. Each H subunit contains one molecule of the prosthetic group PQQ, which is non-covalently bound to the polypeptide chain, as well as one calcium ion which is catalytically essential. There is no interaction between the L chains which fold around the surface of the H chains.

Defined by 3 residues: GLU:A-173 [auth A-171]ASN:A-257 [auth A-255]ASP:A-299 [auth A-297]
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