<unk>  <unk> ,<unk>  5'-phosphate, P5P), the active form of vitamin B6, is a coenzyme in a variety of enzymatic reactions. The Enzyme commission has catalogued more than 140<unk> -dependent activities, corresponding to ~4% of all classified activities. The versatility of<unk>  arises from its ability to covalently bind the substrate, and then to act as an electrophilic catalyst, thereby stabilizing different types of carbanionic reaction intermediates.
Pyridoxal phosphate
Nicotinamide adenine dinucleotide
Nicotinamide adenine dinucleotide phosphate
Methaemoglobin
Tetrahydrobiopterin
Glycobiarsol
Crotonyl-coenzyme A
Aminopterin