Research workbench
Crystal structure of a parallel 6-helix coiled coil
Analyse Crystal structure of a parallel 6-helix coiled coil in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 3R3K
- Type
- protein
- Length
- 90 residues
- Chains
- 3
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Cchex-PHI22 helix
- Ligands
- ACE, NA, CL
Structure
x-ray diffraction · 1 distinct chain · 93% helix, 0% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A, B, C | Cchex-PHI22 helix | protein | 30 | 93% helix, 0% strand | — |
Ligands and binding sites
- ACE · Acetyl group · ligand · 3 copies · chains A, C, B
- NA · Sodium ion · metal · 4 copies · chains B, C, A
- CL · Chloride ion · ion · 2 copies · chains A, C
- EDO · 1,2-ethanediol · additive · 2 copies · chains B, C
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Interfaces
2 interfaces between chains.
- A–B · 706 Ų buried · 1 hydrogen bond · protein-protein
- A–C · 693 Ų buried · 0 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 3 covalent, 3 modified (covalent ligand, nonstandard).
Compared structures
- 3R3K · Crystal structure of a parallel 6-helix coiled coil · the same entry in another collection · chain A against A, TM-score 1.00
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Elsewhere: RCSB PDB 3R3K · PDBe 3R3K
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