1. 3.4.13.19 enzyme   aminodipeptidase
                      dipeptidase
                      membrane dipeptidase
                      nonspecific dipeptidase
                      renal dipeptidase
                      glycosyl-phosphatidylinositol-anchored renal dipeptidase
                      MDP
                      dipeptide hydrolase
                      dipeptidyl hydrolase
                      dehydropeptidase I (DPH I)

2. 3.4.13.12 enzyme   dipeptidase M
                      methionyl dipeptidase
                      Met-X dipeptidase
                      Met-Xaa dipeptidase

3. 3.4.13.21 enzyme   aspartyl dipeptidase
                      dipeptidase E
                      peptidase E
                      PepE gene product (Salmonella typhimurium)

4. 3.4.13.3 enzyme   aminoacylhistidine dipeptidase
                      dipeptidase M
                      X-His dipeptidase
                      carnosinase
                      homocarnosinase

5. 3.4.11.2 enzyme   cysteinylglycine dipeptidase
                      CD13
                      cysteinylglycinase
                      alanine aminopeptidase
                      alanyl aminopeptidase
                      amino-oligopeptidase
                      aminopeptidase M
                      aminopeptidase N
                      microsomal aminopeptidase
                      L-alanine aminopeptidase
                      alanine-specific aminopeptidase
                      membrane alanyl aminopeptidase
                      membrane aminopeptidase I
                      particle-bound aminopeptidase
                      pseudo leucine aminopeptidase

6. 3.4.13.18 enzyme   iminodipeptidase
                      prolyl dipeptidase
                      prolylglycine dipeptidase
                      L-prolylglycine dipeptidase
                      Pro-X dipeptidase
                      cytosol nonspecific dipeptidase
                      glycyl-glycine dipeptidase
                      glycyl-leucine dipeptidase
                      non-specific dipeptidase
                      N2-beta-alanylarginine dipeptidase
                      glycyl-L-leucine dipeptidase
                      human cytosolic non-specific dipeptidase
                      diglycinase
                      prolinase
                      glycylleucine hydrolase
                      glycylleucine peptidase
                      peptidase A
                      Gly-Leu hydrolase
                      glycylleucine dipeptide hydrolase
                      glycyl-L-leucine hydrolase
                      glycyl-L-leucine peptidase
                      L-amino-acyl-L-amino-acid hydrolase

7. 3.4.13.4 enzyme   X-Arg dipeptidase
                      Xaa-Arg dipeptidase
                      aminoacyl-lysine dipeptidase
                      N2-(4-amino-butyryl)-L-lysine hydrolase

8. 3.4.13.9 enzyme   imidodipeptidase
                      proline dipeptidase
                      X-Pro dipeptidase
                      Xaa-Pro dipeptidase
                      prolidase
                      gamma-peptidase
                      peptidase D

9. 3.4.14.6 enzyme   dipeptidyl-dipeptidase
                      tetrapeptide dipeptidase
                      dipeptidyl ligase
                      dipeptidyl tetrapeptide hydrolase

10. 3.4.15.1 enzyme   peptidyl dipeptidase
                      peptidyl dipeptidase A
                      peptidyl dipeptidase I
                      peptidyl dipeptidase-4
                      peptidyl-dipeptidase A
                      endothelial cell peptidyl dipeptidase
                      ACE
                      DCP
                      PDH
                      carboxycathepsin
                      dipeptide hydrolase
                      dipeptidyl carboxypeptidase
                      kininase II
                      peptidase P
                      peptidyldipeptide hydrolase
                      angiotensin converting enzyme
                      dipeptidyl carboxypeptidase I
                      peptidyl dipeptide hydrolase
                      peptidyl-dipeptide hydrolase
                      angiotensin I-converting enzyme

11. 3.4.15.4 enzyme   peptidyldipeptidase B
                      peptidyl-dipeptidase B
                      atriopeptin convertase
                      dipeptidyl carboxyhydrolase
                      atrial dipeptidyl carboxyhydrolase
                      atrial peptide convertase
                      atrial di-(tri)peptidyl carboxyhydrolase

12. 3.4.17.21 enzyme   NAALA dipeptidase
                      acetylaspartylglutamate dipeptidase
                      N-Acetylated alpha-linked acidic dipeptidase
                      N-acetylated-alpha-linked-amino dipeptidase
                      N-acetylated-gamma-linked-acidic dipeptidase (NAALADase)
                      PSMA
                      mGCP
                      PSM antigen
                      folate hydrolase
                      folylpolyglutamate hydrolase
                      pteroylpolygammaglutamyl hydrolase
                      pteroylpolyglutamate hydrolase
                      glutamate carboxypeptidase II
                      membrane glutamate carboxypeptidase
                      pteroylpolyglutamic acid hydrolase
                      rat NAAG peptidase
                      microsomal gamma-glutamyl carboxypeptidase
                      prostate-specific membrane antigen
                      prostrate-specific membrane antigen
                      pteroylpoly-gamma-glutamate carboxypeptidase
                      pteroylpoly-gamma-glutamate hydrolase

13. 3.4.13.17 enzyme   non-stereospecific dipeptidase
                      D-(or L-)aminoacyl-dipeptidase
                      peptidyl-D-amino acid hydrolase

14. 3.4.13.22 enzyme   D-Ala-D-Ala dipeptidase
                      D-alanyl-D-alanine dipeptidase
                      vanX D-Ala-D-Ala dipeptidase
                      VanX

15. 3.4.13.5 enzyme   aminoacyl-methylhistidine dipeptidase
                      X-methyl-His dipeptidase
                      Xaa-methyl-His dipeptidase
                      anserinase
                      acetylhistidine deacetylase
                      N-acetylhistidine deacetylase
                      alpha-N-acetyl-L-histidine aminohydrolase

16. 3.4.13.7 enzyme   Glu-Glu dipeptidase
                      alpha-glutamyl-glutamate dipeptidase
                      glutamylglutamic arylamidase

17. 3.4.15.5 enzyme   peptidyl-dipeptidase Dcp
                      dipeptidyl carboxypeptidase
                      dipeptidyl carboxypeptidase (Dcp)

18. 3.4.19.5 enzyme   beta-aspartyl dipeptidase
                      beta-aspartyl peptidase
                      beta-aspartyl-peptidase

19. 3.4.13.20 enzyme   beta-Ala-His dipeptidase
                      serum carnosinase