There are 7 different alcohol dehydrogenases' (ADH) isozymes in human: three belongs to class-I: alpha, beta, and gamma, one to class-II: pi, one to class-III: chi, one to class-IV: ADH7 and one to class-V: ADH6.This entry represents ADH6, the class-V subfamily of the zinc-containing alcohol dehydrogenase family (). Proteins in this entry are from mammals.