Proposed classification of arthropod calpain genes
| Type . | Members . | Features . |
|---|---|---|
| A/B calpains | Dm-CalpA, Dm-CalpB, Gl-CalpB | Four-domain structure of typical calpains (domain IV in C-terminus) |
| C calpains | Dm-CalpC | Four-domain structure of typical calpains; all three catalytic amino acid residues mutated (inactive) |
| D calpains | Dm-CalpD (SOL) | Zn-finger motifs in N-terminus; domain IV replaced by SOL domain in C-terminus |
| M calpains | Ha-CalpM, Gl-CalpM | Truncated (lacks domain IV) |
| T calpains | Gl-CalpT | Domain IV replaced by T domain in C-terminus |
| Type . | Members . | Features . |
|---|---|---|
| A/B calpains | Dm-CalpA, Dm-CalpB, Gl-CalpB | Four-domain structure of typical calpains (domain IV in C-terminus) |
| C calpains | Dm-CalpC | Four-domain structure of typical calpains; all three catalytic amino acid residues mutated (inactive) |
| D calpains | Dm-CalpD (SOL) | Zn-finger motifs in N-terminus; domain IV replaced by SOL domain in C-terminus |
| M calpains | Ha-CalpM, Gl-CalpM | Truncated (lacks domain IV) |
| T calpains | Gl-CalpT | Domain IV replaced by T domain in C-terminus |