ATP2A2(redirected from ATP2B)
ATP2A2A gene on chromosome 12q24.11 that encodes a SERCA Ca2+-ATPase, an intracellular pump located in the sarcoplasmic or endoplasmic reticula of muscle cells, which catalyses the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen, and is involved in muscle contraction and relaxation.
ATP2A2 mutations cause Darier-White syndrome, which is characterised by loss of intraepidermal cell adhesion and abnormal keratinisation.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.