sometimes more difficult to see, such as this reaction from glycolysis:

:P_i + glyceraldehyde-3-phosphate + NAD⁺ -> NADH + H⁺ + 1,3-bisphosphoglycerate

In this reaction, NAD⁺ is the oxidant (electron acceptor), and glyceraldehyde-3-phosphate is the reductant (electron donor).

Nomenclature

Proper names of oxidoreductases are formed as "donor:acceptor oxidoreductase"; however, other