Kinase Subfamily AlphaK1

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Kinase Classification: Group PKL: Family Alpha: Subfamily AlphaK1

Domain Structure

Members have a 6-transmembrane-region TRPM channel followed by an alpha kinase domain.

Evolution

AlphaK1 (ALPK1) is a single-copy gene in vertebrates. Clear orthologs have also been detected in the chordate Branchiostoma floridae (lancelet) and the sea anemone, Nematostella, suggesting that the gene was born in early metazoan evolution, but then lost from many lineages.

Functions

ALPK1 has been implicated in vesicle transport from the Golgi to the plasma membrane [1], perhaps by myosin phosphorylation. Mouse ALPK1 mutants were associated with motor co-ordination defects [2], and the gene has been associated with both gout and kidney disease.

References

  1. Heine M, Cramm-Behrens CI, Ansari A, Chu HP, Ryazanov AG, Naim HY, and Jacob R. Alpha-kinase 1, a new component in apical protein transport. J Biol Chem. 2005 Jul 8;280(27):25637-43. DOI:10.1074/jbc.M502265200 | PubMed ID:15883161 | HubMed [Heine]
  2. Chen M and Xu R. Motor coordination deficits in Alpk1 mutant mice with the inserted piggyBac transposon. BMC Neurosci. 2011 Jan 5;12:1. DOI:10.1186/1471-2202-12-1 | PubMed ID:21208416 | HubMed [Chen]
All Medline abstracts: PubMed | HubMed