Vitamin B12-transporting ATPase
- Vitamin B12-transporting ATPase
In enzymology, a vitamin B12-transporting ATPase (EC number|3.6.3.33) is an enzyme that catalyzes the chemical reaction
:ATP + H2O + vitamin B12out ADP + phosphate + vitamin B12in
The 3 substrates of this enzyme are ATP, H2O, and vitamin B12, whereas its 3 products are ADP, phosphate, and vitamin B12.
This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is ATP phosphohydrolase (vitamin B12-importing). This enzyme participates in abc transporters - general.
tructural studies
As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes PDB link|1L7V and PDB link|2QI9.
References
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External links
Gene Ontology (GO) codes
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