CATH Classification

Domain Context

CATH Clusters

Superfamily Quinoprotein alcohol dehydrogenase-like superfamily
Functional Family Methanol dehydrogenase, large subunit

Enzyme Information

1.1.2.8
Alcohol dehydrogenase (cytochrome c).
based on mapping to UniProt Q9Z4J7
A primary alcohol + 2 cytochrome c = an aldehyde + 2 reduced cytochrome c + 2 H(+).
-!- A periplasmic PQQ-containing quinoprotein. -!- Occurs in Pseudomonas and Rhodopseudomonas. -!- The enzyme from Pseudomonas aeruginosa uses a specific inducible cytochrome c(550) as electron acceptor. -!- Acts on a wide range of primary and secondary alcohols, but not methanol. -!- It has a homodimeric structure (contrasting with the heterotetrameric structure of EC 1.1.2.7, methanol dehydrogenase (cytochrome c)). -!- It is routinely assayed with phenazine methosulfate as electron acceptor. -!- Activity is stimulated by ammonia or amines. -!- Like all other quinoprotein alcohol dehydrogenases it has an 8-bladed 'propeller' structure, a calcium ion bound to the PQQ in the active site and an unusual disulfide ring structure in close proximity to the PQQ. -!- Formerly EC 1.1.99.8.

UniProtKB Entries (1)

Q9Z4J7
EXAA_PSEAE
Pseudomonas aeruginosa PAO1
Quinoprotein alcohol dehydrogenase (cytochrome c)

PDB Structure

PDB 1FLG
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
X-ray structure of the quinoprotein ethanol dehydrogenase from Pseudomonas aeruginosa: basis of substrate specificity.
Keitel, T., Diehl, A., Knaute, T., Stezowski, J.J., Hohne, W., Gorisch, H.
J.Mol.Biol.