2.6.1.5 pyridoxal 5'-phosphate - 2.6.1.5 pyridoxal 5'-phosphate dependent 2.6.1.5 pyridoxal 5'-phosphate two mol coenzyme per mol of enzyme 2.6.1.5 pyridoxal 5'-phosphate relative position of the cofactor at the active site determined by X-ray crystallography 2.6.1.5 pyridoxal 5'-phosphate Km value of 0.0235 mM 2.6.1.5 pyridoxamine 5'-phosphate can replace pyridoxal 5'-phosphate