Research workbench
Crystal structure of the calmodulin-bound CAV1.2 C-terminal regulatory domain dimer
Analyse Crystal structure of the calmodulin-bound CAV1.2 C-terminal regulatory domain… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 3G43
- Type
- protein
- Length
- 629 residues
- Chains
- 6
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Calmodulin; Voltage-dependent L-type calcium channel subunit alpha-1C
- UniProt
- P62158, Q13936
- Ligands
- CA
- Pockets
- 9 · best druggability 0.61
Structure
x-ray diffraction · 6 distinct chains · 64% helix, 4% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Calmodulin | protein | 75 | 60% helix, 5% strand | P62158 |
| B | Calmodulin | protein | 147 | 59% helix, 5% strand | P62158 |
| C | Calmodulin | protein | 148 | 57% helix, 5% strand | P62158 |
| D | Calmodulin | protein | 146 | 59% helix, 4% strand | P62158 |
| E | Voltage-dependent L-type calcium channel subunit alpha-1C | protein | 68 | 85% helix, 0% strand | Q13936 |
| F | Voltage-dependent L-type calcium channel subunit alpha-1C | protein | 45 | 91% helix, 0% strand | Q13936 |
Ligands and binding sites
- CA · Calcium ion · metal · 14 copies · chains A, B, C, D
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
9 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 68 | 0.61 | 0.91 | 20 | empty |
| 2 | 188 | 0.58 | 0.81 | 20 | empty |
| 3 | 189 | 0.55 | 0.79 | 29 | empty |
| 4 | 258 | 0.55 | 0.76 | 27 | empty |
| 5 | 182 | 0.42 | 0.73 | 27 | empty |
Interfaces
8 interfaces between chains.
- B–E · 1516 Ų buried · 10 hydrogen bonds · protein-protein
- D–F · 1145 Ų buried · 8 hydrogen bonds · protein-protein
- C–E · 1101 Ų buried · 4 hydrogen bonds · protein-protein
- C–F · 1035 Ų buried · 11 hydrogen bonds · protein-protein
- D–E · 989 Ų buried · 15 hydrogen bonds · protein-protein
Compared structures
- 3G43 · Crystal structure of the calmodulin-bound Cav1.2 C-terminal regulatory domain dimer · the same entry in another collection · chain F against F, TM-score 1.00
- Q13936 · AlphaFold monomer V2.0 prediction for voltage-dependent L-type calcium channel subunit… · a predicted model of the same protein · chain F against A, TM-score 0.87
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P62158
- Every structure of UniProt Q13936
- Elsewhere: RCSB PDB 3G43 · PDBe 3G43 · UniProt P62158 · UniProt Q13936
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