Rattus norvegicus
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein heterocomplex | Heteromer | Protein 2 | CALPAIN × 1 （Q64537） water × 2 | Consistent with protein count |
| UniProt name | CAN2_RAT |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–700； UniProt 1–700 |
Rattus norvegicus
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein heterocomplex | Heteromer | Protein 2 | M-CALPAIN × 1 （Q07009） water × 2 | Consistent with protein count |
| UniProt name | CANS_RAT |
| Isoform | — |
| PDB entities | 2 |
| Chains and sequence ranges | Author chain B； PDBConstruct 1–184； UniProt 1–184 |
The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.
| Entry ID entry_id | 1df0 |
| Deposition date deposition_date | 1999-11-16 |
| Structure title title | Crystal structure of M-Calpain |
| Keywords keywords | CYSTEINE PROTEASE, CALMODULIN, PAPAIN, CATALYTIC TRIAD, ZYMOGEN ACTIVATION, C2 DOMAIN, PROTEASE, ZYMOGEN, CALPAIN, HYDROLASE; HYDROLASE |
| Experimental Method method | X-RAY DIFFRACTION |
This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
| Rg（Guinier） | 31.46 Å |
| Rg (electron density) | 30.78 Å |
| Total Rg | 31.34 Å |
| Atom count | 6391 |
| Residues | 800 |
| Excluded volume | 113370 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1df0a1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.39 — EF Hand-like |
| Superfamily Superfamily superfamily | a.39.1 — EF-hand |
| Family Family family | a.39.1.8 — Penta-EF-hand proteins |
| Domain ID domain_id | d1df0a2 |
| Class class | b — All beta proteins |
| Fold Fold fold | b.14 — Calpain large subunit, middle domain (domain III) |
| Superfamily Superfamily superfamily | b.14.1 — Calpain large subunit, middle domain (domain III) |
| Family Family family | b.14.1.1 — Calpain large subunit, middle domain (domain III) |
| Domain ID domain_id | d1df0a3 |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.3 — Cysteine proteinases |
| Superfamily Superfamily superfamily | d.3.1 — Cysteine proteinases |
| Family Family family | d.3.1.3 — Calpain large subunit, catalytic domain (domain II) |
| Domain ID domain_id | d1df0b_ |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.39 — EF Hand-like |
| Superfamily Superfamily superfamily | a.39.1 — EF-hand |
| Family Family family | a.39.1.8 — Penta-EF-hand proteins |
| Domain ID domain_id | 1df0A02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 90 — Alpha-Beta Complex |
| Topology topology | 70 — Cathepsin B; Chain A |
| Homologous superfamily homologous superfamily | 10 — Cysteine proteinases |
| Domain ID domain_id | 1df0A03 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 60 — Sandwich |
| Topology topology | 120 — Jelly Rolls |
| Homologous superfamily homologous superfamily | 380 — |
| Domain ID domain_id | 1df0A04 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 238 — Recoverin; domain 1 |
| Homologous superfamily homologous superfamily | 10 — EF-hand |
| Domain ID domain_id | 1df0B00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 238 — Recoverin; domain 1 |
| Homologous superfamily homologous superfamily | 10 — EF-hand |