Table 6.

Occurrence and Types of Peptidases in F. nucleatum sub spp

Peptidase
FN
FNV
1. Aminoacyl-histidine dipeptidase + +
2. Aspartyl aminopeptidase + +
3. Cell wall endopeptidase family m23/m37 + +
4. Cytosol aminopeptidase + +
5. D-alanyl-D-alanine carboxypeptidase + +
6. Deblocking aminopeptidase + -
7. Gamma-glutamyltranspeptidase + -
8. Lipoprotein signal peptidase + +
9. Metalloendopeptidases + +
10. Methionine aminopeptidase + +
11. Multimodular transpeptidase E-transglycosylase Pbp 1A - +
12. Multimodular transpeptidase E-transglycosylase Pbp 1C + +
13. Oligoendopeptidase F + +
14. O-sialoglycoprotein endopeptidase + +
15. Peptidase - +
16. Peptidase E + +
17. Peptidase T + +
18. Proline iminopeptidase + +
19. Pyrrolidone-carboxylate peptidase + +
20. Signal peptidase I + +
21. Thermostable carboxypeptidase 1 + -
22. Xaa-His dipeptidase + +
23. Xaa-Pro aminopeptidase + +
24. Xaa-Pro dipeptidase
+
+

[i] Plus sign indicates presence of the peptidase.

Minus sign indicates absence of the peptidase.