acetylcholinesterase ( ache , ec 3.1.1.7 ) , creatine phosphokinase ( cpk , ec 2.7.3.2 ) , and lactic dehydrogenase ( ldh , ec 1.1.1.27 ) activities , [ 3h ] leucine incorporation into protein , and total protein of the cultures decreased in a dose-related manner with dph concentrations of 30 microgram/ml and greater .
C0030016
dehydrogenase
C0022917
ldh