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. 2019 Aug 1;166:4–18. doi: 10.1016/j.biochi.2019.07.026

Table 9.

Peptidase families found in viruses and bacteria.

Family Type example
C40 dipeptidyl-peptidase VI
G2 pre-neck appendage protein
M15 zinc d-Ala-d-Ala carboxypeptidase
M23 beta-lytic metallopeptidase
M60 enhancin
M78 ImmA peptidase
M86 PghP gamma-polyglutamate hydrolase
N10 intein-containing replicative DNA helicase precursor
S73 gpO peptidase
S74 Escherichia coli phage K1F endosialidase CIMCD self-cleaving protein
S78 prohead peptidase