. "The chemical reactions and pathways resulting in the formation of pyridoxal phosphate, pyridoxal phosphorylated at the hydroxymethyl group of C-5, the active form of vitamin B6." . . . . "pyridoxal phosphate biosynthetic process" . "active vitamin B6 biosynthesis" . "active vitamin B6 biosynthetic process" . "pyridoxal phosphate anabolism" . "pyridoxal phosphate biosynthesis" . "pyridoxal phosphate formation" . "pyridoxal phosphate synthesis" . . . . .