retrieval

1) ==> protein phosphorylation ENZYME: casein kinase 2 {CELL_NUCLEUS} {CYTOPLASM} (casein kinase 2-alpha chain casein kinase 2-alpha' chain casein kinase 2-beta chain -[Zn+2]) SUBSTRATE: serum response factor {cell nucleus} adenosine triphosphate PRODUCT: serum response factor {cell nucleus} adenosine 5'-diphosphate