From: Use of the University of Minnesota Biocatalysis/Biodegradation Database for study of microbial degradation
Class
Name
# in UM-BBD
EC 1
Oxidoreductases
552 (62%)
EC 2
Transferases
54 (6%)
EC 3
Hydrolases
144 (16%)
EC 4
Lyases
90 (10%)
EC 5
Isomerases
29 (3%)
EC 6
Ligases
25 (3%)