Summary for clan U-
| Description | Families of peptidases of unknown catalytic mechanism not assigned to clans |
Families
| U32 |
collagenase ({Porphyromonas}-type) (Porphyromonas gingivalis) |
- |
| U40 |
protein P5 murein endopeptidase (bacteriophage phi-6) (bacteriophage phi-6) |
- |
| U49 |
Lit peptidase (Escherichia coli) |
- |
| U56 |
homomultimeric peptidase (Thermotoga maritima) |
- |
| U57 |
yabG protein ({Bacillus}-type) (Bacillus subtilis) |
- |
| U69 |
AIDA-I self-cleaving autotransporter protein ({Escherichia coli}) (Escherichia coli) |
- |
| U72 |
Dop isopeptidase (Mycobacterium tuberculosis) |
- |
| U74 |
neprosin (Nepenthes ventrata) |
- |
Distribution of clan U- among Kingdoms of Organisms
