Apart from this zinc also stimulates the activity of pyridoxal kinase
, which is involved in the synthesis of pyridoxal phosphate from pyridoxal.
SOS4 a Pyridoxal kinase gene, is require for root hair development in Arabidopsis.
Vitamer levels, stress Response, Enzyme activity and Gene regulation of Arabidopsis Lines mutant in the pyridoxine/pyridoxamine 5'phosphate oxidase (PDX3) and the pyridoxal kinase (SOS4) gene involed in the vitamin B6 salvage pathway.Plant physiology, 145: 985-996.
Among other findings, the research group detected increased activity of the pyridoxal kinase
PLP is available for other cells only after being hydrolyzed to PL by alkaline phosphatase, but most cells have pyridoxal kinase
activity and are therefore able to rephosphorylate PL to PLP (4,5).
Studies on the metabolism of vitamin B6 in the small intestine: Part III--purification and properties of monkey intestinal pyridoxal kinase
. Indian J Biochem 7:151-156 (1970).