Abstract
Of all the SERCA pumps, SERCA3 was the latest to be described and the least well known. Its primary structure deviates more than usual from the other members of the SERCA family. It is not known whether its remarkably low affinity for Ca2+ (K0.5 > 1μM) observed upon expression in the COS cell system occurs also in its normal cellular context. SERCA3 is particularly expressed at high levels in different types of blood cells and related cells like platelets, lymphocytes, mast cells and arterial endothelial cells. It is also found in cerebellar Purkinje neurons. The physiological significance of this expression pattern remains unknown.
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Abbreviations
- SERCA:
-
Sarcoplasmic or endoplasmic reticulum Ca-ATPase
- RT-PCR:
-
reverse transcriptase polymerase chain reaction
- E-P:
-
the covalently phosphorylated enzyme-intermediate of the Ca2+ ATPase reaction cycle.
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Wuytack, F., Dode, L., Baba-Aissa, F. et al. The SERCA3-type of organellar Ca2+pumps. Biosci Rep 15, 299–306 (1995). https://doi.org/10.1007/BF01788362
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DOI: https://doi.org/10.1007/BF01788362