3.4.16.1	serine carboxypeptidase	transferred to EC 3.4.16.5, EC 3.4.16.6	
3.4.16.2	lysosomal Pro-Xaa carboxypeptidase	-	
3.4.16.3	tyrosine carboxypeptidase	transferred to EC 3.4.16.5	
3.4.16.4	serine-type D-Ala-D-Ala carboxypeptidase	-	
3.4.16.5	carboxypeptidase C	-	
3.4.16.6	carboxypeptidase D	-