PLP Catalysis · Vitamin B6 Electron Sink
unseel.com · pyridoxal 5'-phosphate · quinonoid intermediate · Dunathan geometry
Cα–H pKa 29
λmax (nm)
State
Pyridine ring / N⁺ sink
Amino-acid substrate
Imine linkage / π electrons
Quinonoid carbanion charge
Unseel.com · Pyridoxal 5'-Phosphate Catalysis