benzyl alcohol dehydrogenase and benzaldehyde dehydrogenase , two upper pathway enzymes , exhibit very broad substrate specificities and transform unsubstituted substrates and m- and p-methyl- , m- and p-ethyl- , and m- and p-chloro-substituted benzyl alcohols and benzaldehydes , respectively , at a high rate .
C0005023
dehydrogenase
C0005024
benzaldehydes