TPN(redirected from Metabolic defects)
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TPN,in biochemistry, abbreviation for triphosphopyridine nucleotide, a coenzymecoenzyme
, any one of a group of relatively small organic molecules required for the catalytic function of certain enzymes. A coenzyme may either be attached by covalent bonds to a particular enzyme or exist freely in solution, but in either case it participates intimately in
..... Click the link for more information. now usually called nicotinamide adenine dinucleotide phosphate, or NADP.