Microtubule-severing ATPase

Microtubule-severing ATPase
microtubule-severing ATPase
Identifiers
EC number 3.6.4.3
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

In enzymology, a microtubule-severing ATPase (EC 3.6.4.3) is an enzyme that catalyzes the chemical reaction

ATP + H2O \rightleftharpoons ADP + phosphate

Thus, the two substrates of this enzyme are ATP and H2O, whereas its two products are ADP and phosphate.

This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides to facilitate cellular and subcellular movement. The systematic name of this enzyme class is ATP phosphohydrolase (tubulin-dimerizing).

References

  • McNally FJ, Vale RD (1993). "Identification of katanin, an ATPase that severs and disassembles stable microtubules". Cell. 75 (3): 419–29. doi:10.1016/0092-8674(93)90377-3. PMID 8221885. 
  • Cheesman S, Heuser J, Vale RD, McNally FJ (1998). "Katanin, a microtubule-severing protein, is a novel AAA ATPase that targets to the centrosome using a WD40-containing subunit". Cell. 93 (2): 277–87. doi:10.1016/S0092-8674(00)81578-0. PMID 9568719.