1. 3.4.16.2 enzyme   aminoacylproline carboxypeptidase
                      carboxypeptidase P
                      prolyl carboxypeptidase
                      lysosomal carboxypeptidase C
                      peptidylprolylamino acid carboxypeptidase
                      lysosomal Pro-Xaa carboxypeptidase
                      proline-specific carboxypeptidase P
                      PCP
                      angiotensinase C

2. 3.4.16.5 enzyme   carboxypeptidase C
                      carboxypeptidase Y
                      lysosomal carboxypeptidase A
                      serine carboxypeptidase I
                      deamidase
                      phaseolin
                      cathepsin A
                      lysosomal protective protein

3. 3.4.16.6 enzyme   KEX1 carboxypeptidase
                      carboxypeptidase D
                      carboxypeptidase Kex1
                      cereal serine carboxypeptidase II
                      gene KEX1 serine carboxypeptidase
                      KEX1DELTAp
                      CPDW-II
                      KEX1 proteinase
                      Saccharomyces cerevisiae KEX1 gene product

4. 3.4.17.1 enzyme   carboxypeptidase A
                      pancreatic carboxypeptidase A
                      tissue carboxypeptidase A
                      carboxypolypeptidase

5. 3.4.17.10 enzyme   carboxypeptidase E
                      carboxypeptidase H
                      enkephalin precursor carboxypeptidase
                      membrane-bound carboxypeptidase
                      insulin granule-associated carboxypeptidase
                      cobalt-stimulated chromaffin granule carboxypeptidase
                      enkephalin convertase
                      enkephalin-precursor endopeptidase
                      peptidyl-L-lysine(-L-arginine) hydrolase

6. 3.4.17.11 enzyme   carboxypeptidase G
                      carboxypeptidase G1
                      carboxypeptidase G2
                      glutamate carboxypeptidase
                      glutamyl carboxypeptidase
                      N-pteroyl-L-glutamate hydrolase

7. 3.4.17.12 enzyme   carboxypeptidase M
                      CPM

8. 3.4.17.15 enzyme   carboxypeptidase A2
                      CPA2

9. 3.4.17.16 enzyme   carboxypeptidase P
                      microsomal carboxypeptidase
                      membrane Pro-X carboxypeptidase
                      membrane Pro-Xaa carboxypeptidase

10. 3.4.17.18 enzyme   carboxypeptidase T
                      CPT

11. 3.4.17.2 enzyme   carboxypeptidase B
                      pancreatic carboxypeptidase B
                      tissue carboxypeptidase B
                      protaminase
                      peptidyl-L-lysine [L-arginine]hydrolase

12. 3.4.17.20 enzyme   arginine carboxypeptidase
                      carboxypeptidase R
                      carboxypeptidase U
                      plasma carboxypeptidase B (misleading, since the term  carboxypeptidase B is used for other enzymes)
                      thrombin-activatable fibrinolysis inhibitor

13. 3.4.17.3 enzyme   arginine carboxypeptidase
                      carboxypeptidase N
                      lysine carboxypeptidase
                      plasma carboxypeptidase B
                      CPN
                      bradykinase
                      protaminase
                      CPase N
                      anaphylatoxin inactivator
                      hippuryllysine hydrolase
                      kininase I
                      kininase Ia
                      bradykinin-decomposing enzyme
                      creatinine kinase convertase
                      creatine kinase conversion factor
                      peptidyl-L-lysine(-L-arginine) hydrolase

14. 3.4.17.4 enzyme   carboxypeptidase S
                      carboxypeptidase a
                      glycine carboxypeptidase
                      yeast carboxypeptidase
                      Gly-X carboxypeptidase
                      Gly-Xaa carboxypeptidase
                      peptidase alpha

15. 3.4.17.8 enzyme   DD-carboxypeptidase
                      carboxypeptidase I
                      muramoylpentapeptide carboxypeptidase
                      D-alanine carboxypeptidase
                      D-alanine carboxypeptidase I
                      D-alanine-D-alanine-carboxypeptidase
                      D-alanyl-D-alanine carboxypeptidase
                      carboxypeptidase D-alanyl-D-alanine
                      PBP5
                      PdcA
                      VanX
                      VanY
                      DD-peptidase
                      penicillin binding protein 5
                      D-alanyl-D-alanine peptidase
                      UDP-N-acetylmuramoyl-tetrapeptidyl-D-alanine alanine-hydrolase

16. 3.4.19.9 enzyme   carboxypeptidase G
                      gamma-Glu-X carboxypeptidase
                      lysosomal gamma-glutamyl carboxypeptidase
                      conjugase
                      folate conjugase
                      polyglutamate hydrolase
                      folic acid conjugase
                      gamma-glutamyl hydrolase
                      pteroylpoly-gamma-glutamyl hydrolase
                      poly(gamma-glutamic acid) endohydrolase
                      poly(glutamic acid) hydrolase II
                      pteroyl-poly-gamma-glutamate hydrolase

17. 3.4.15.1 enzyme   dipeptidyl carboxypeptidase
                      dipeptidyl carboxypeptidase I
                      ACE
                      DCP
                      PDH
                      carboxycathepsin
                      dipeptide hydrolase
                      kininase II
                      peptidase P
                      peptidyl dipeptidase
                      peptidyldipeptide hydrolase
                      angiotensin converting enzyme
                      peptidyl dipeptidase A
                      peptidyl dipeptidase I
                      peptidyl dipeptidase-4
                      peptidyl dipeptide hydrolase
                      peptidyl-dipeptidase A
                      peptidyl-dipeptide hydrolase
                      angiotensin I-converting enzyme
                      endothelial cell peptidyl dipeptidase

18. 3.4.15.5 enzyme   dipeptidyl carboxypeptidase
                      dipeptidyl carboxypeptidase (Dcp)
                      peptidyl-dipeptidase Dcp

19. 3.4.16.4 enzyme   DD-carboxypeptidase
                      D-alanine carboxypeptidase
                      D-alanyl carboxypeptidase
                      D-alanyl-D-alanine-carboxypeptidase
                      serine-type D-Ala-D-Ala carboxypeptidase
                      DD-peptidase
                      DD-transpeptidase
                      D-alanyl-D-alanine-cleaving peptidase
                      D-alanyl-D-alanine-cleaving-peptidase

20. 3.4.17.13 enzyme   LD-carboxypeptidase
                      carboxypeptidase II
                      carboxypeptidase IIW
                      muramoyltetrapeptide carboxypeptidase
                      lysyl-D-alanine carboxypeptidase
                      L-lysyl-D-alanine carboxypeptidase

21. 3.4.17.14 enzyme   DD-carboxypeptidase
                      DD-carboxypeptidase-transpeptidase
                      D-alanyl-D-alanine-cleaving carboxypeptidase
                      zinc D-Ala-D-Ala carboxypeptidase
                      G enzyme
                      Zn2+ G peptidase, D-alanyl-D-alanine hydrolase

22. 3.4.17.17 enzyme   carboxypeptidase-tubulin
                      soluble carboxypeptidase
                      tubulin carboxypeptidase
                      tubulinyltyrosine carboxypeptidase
                      tyrosinotubulin carboxypeptidase
                      tyrosyltubulin carboxypeptidase
                      brain I carboxypeptidase
                      tubulin-tyrosine carboxypeptidase
                      tubulinyl-Tyr carboxypeptidase
                      TTCPase

23. 3.4.17.19 enzyme   carboxypeptidase Taq

24. 3.4.17.6 enzyme   alanine carboxypeptidase
                      N-benzoyl-L-alanine-amidohydrolase

25. 3.4.18.1 enzyme   acid carboxypeptidase
                      cysteine-type carboxypeptidase
                      lysosomal carboxypeptidase B
                      cathepsin B2
                      cathepsin IV
                      cathepsin X
                      cathepsin Z

26. 3.4.24.19 enzyme   procollagen carboxypeptidase
                      carboxyprocollagen peptidase
                      procollagen peptidase
                      procollagen C-endopeptidase
                      procollagen C-proteinase
                      procollagen C-terminal peptidase
                      procollagen C-terminal proteinase
                      procollagen carboxy-terminal proteinase

27. 3.4.17.21 enzyme   glutamate carboxypeptidase II
                      membrane glutamate carboxypeptidase
                      microsomal gamma-glutamyl carboxypeptidase
                      pteroylpoly-gamma-glutamate carboxypeptidase
                      PSMA
                      mGCP
                      NAALA dipeptidase
                      PSM antigen
                      acetylaspartylglutamate dipeptidase
                      folate hydrolase
                      folylpolyglutamate hydrolase
                      pteroylpolygammaglutamyl hydrolase
                      pteroylpolyglutamate hydrolase
                      pteroylpolyglutamic acid hydrolase
                      rat NAAG peptidase
                      prostate-specific membrane antigen
                      prostrate-specific membrane antigen
                      pteroylpoly-gamma-glutamate hydrolase
                      N-Acetylated alpha-linked acidic dipeptidase
                      N-acetylated-alpha-linked-amino dipeptidase
                      N-acetylated-gamma-linked-acidic dipeptidase (NAALADase)

28. 3.4.17.22 enzyme   metallocarboxypeptidase D
                      carboxypeptidase D (cattle, human, mouse, rat)
                      gp180 (duck)