25-2 Biosynthesis of Pyridoxal Phosphate 0 -0 00 Figure 25.1 一OH H 一OH C=0 一OH 0 一OH H -OH 3 H -OH Pathway for pyridoxal 5'- CH20P032 CH20P032 CH20P032 CH20P032 phosphate biosynthesis D-Erythronate 3-Hydroxy-4-phospho- 4-Phospho- 4-phosphate hydroxy-2-ketobutyrate hydroxythreonine CH3 CH3 Pyruvate =0 co. =0 HO- H 0P033 OH 0 H CH20P032 1-Amino-3-hydroxy- D-Glyceraldehyde acetone 3-phosphate 3-phosphate -OH 1-Deoxyxylulose CH2OPO32- 5-phosphate 6 CH20P032 CH2OH Pyridoxine 5'-phosphate OH CH3 0 CH2OPO32 CHO Pyridoxal 5'-phosphate(PLP) OHFigure 25.1 Pathway for pyridoxal 5′- phosphate biosynthesis 25-2Biosynthesis of Pyridoxal Phosphate