Anti-PanK4 (Thr63)

Protein function: May play a role in the physiological regulation of coenzyme A (CoA) intracellular levels. The phosphatase activity shows preference for normal or oxidatively damaged intermediates of 4'- phosphopantetheine, which provides strong indirect evidence that the phosphatase activity pre-empts damage in the CoA pathway. Hydrolyzing excess 4'-phosphopantetheine could constitute a directed overflow mechanism to prevent its oxidation to the S-sulfonate, sulfonate, or other forms. Hydrolyzing 4'-phosphopantetheine sulfonate or S-sulfonate would forestall their conversion to inactive forms of CoA and acyl carrier protein. [The UniProt Consortium]