epsilon-tpnh ( km = 16.7 mum ) was able to replace tpnh ( km = 3.8 mum ) in the enzyme-catalyzed reduction of dihyrdofolate , and both epsilon-tpn and epsilon-tpnh formed binary complexes with the enzyme that were stable to polyacrylamide gel electrophoresis .
C0014442
enzyme
C0026741
complexes