CATH Classification

Domain Context

CATH Clusters

Superfamily TPP-binding domain
Functional Family NAD(P) transhydrogenase subunit beta

Enzyme Information

7.1.1.1
Proton-translocating NAD(P)(+) transhydrogenase.
based on mapping to UniProt Q2RSB4
NADPH + NAD(+) + H(+)(Side 1) = NADP(+) + H(+)(Side 2) + NADH.
-!- The enzyme is a membrane bound proton-translocating pyridine nucleotide transhydrogenase that couples the reversible reduction of NADP by NADH to an inward proton translocation across the membrane. -!- In the bacterium Escherichia coli the enzyme provides a major source of cytosolic NADPH. -!- Detoxification of reactive oxygen species in mitochondria by glutathione peroxidases depends on NADPH produced by this enzyme. -!- Formerly EC 1.6.1.5.

UniProtKB Entries (1)

Q2RSB4
PNTB_RHORT
Rhodospirillum rubrum ATCC 11170
NAD(P) transhydrogenase subunit beta

PDB Structure

PDB 1E3T
External Links
Method SOLUTION NMR
Organism
Primary Citation
Solution Structure of the Nadp(H)-Binding Component (Diii) of Proton-Translocating Transhydrogenase from Rhodospirillum Rubrum
Jeeves, M., Smith, K.J., Quirk, P.G., Cotton, N.P.J., Jackson, J.B.
Biochim.Biophys.Acta