CATH Classification

Domain Context

CATH Clusters

Superfamily ATP synthase, F1 beta subunit
Functional Family

Enzyme Information

7.1.2.2
H(+)-transporting two-sector ATPase.
based on mapping to UniProt P17614
ATP + H(2)O + 4 H(+)(Side 1) = ADP + phosphate + 4 H(+)(Side 2).
-!- A multisubunit non-phosphorylated ATPase that is involved in the transport of ions. -!- Large enzymes of mitochondria, chloroplasts and bacteria with a membrane sector (F(o), V(o), A(o)) and a cytoplasmic-compartment sector (F(1), V(1), A(1)). -!- The F-type enzymes of the inner mitochondrial and thylakoid membranes act as ATP synthases. -!- All of the enzymes included here operate in a rotational mode, where the extramembrane sector (containing 3 alpha- and 3 beta-subunits) is connected via the delta-subunit to the membrane sector by several smaller subunits. -!- Within this complex, the gamma- and epsilon-subunits, as well as the 9-12 c subunits rotate by consecutive 120 degree angles and perform parts of ATP synthesis. -!- This movement is driven by the H(+) electrochemical potential gradient. -!- The V-type (in vacuoles and clathrin-coated vesicles) and A-type (archaeal) enzymes have a similar structure but, under physiological conditions, they pump H(+) rather than synthesize ATP. -!- Formerly EC 3.6.1.34 and EC 3.6.3.14.

UniProtKB Entries (1)

P17614
ATPBM_NICPL
Nicotiana plumbaginifolia
ATP synthase subunit beta, mitochondrial

PDB Structure

PDB 1PYV
External Links
Method SOLUTION NMR
Organism Escherichia
Primary Citation
NMR solution structure of the mitochondrial F1beta presequence from Nicotiana plumbaginifolia
Moberg, P., Nilsson, S., Stahl, A., Eriksson, A.C., Glaser, E., Maler, L.
J.Mol.Biol.
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