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 Q13423
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)

Q13423
NNTM_HUMAN
Homo sapiens
NAD(P) transhydrogenase, mitochondrial

PDB Structure

PDB 1DJL
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
The high-resolution structure of the NADP(H)-binding component (dIII) of proton-translocating transhydrogenase from human heart mitochondria.
White, S.A., Peake, S.J., McSweeney, S., Leonard, G., Cotton, N.P., Jackson, J.B.
Structure Fold.Des.