1.1.1.311 (S)-1-phenylethanol dehydrogenase ethylbenzene degradation (anaerobic) 1.17.99.2 ethylbenzene hydroxylase ethylbenzene degradation (anaerobic) 2.3.1.16 acetyl-CoA C-acyltransferase ethylbenzene degradation (anaerobic) 6.4.1.8 acetophenone carboxylase ethylbenzene degradation (anaerobic)