ALPHA/BETA-peptide helix bundles: the GCN4-pli side chain sequence on an (alpha-alpha-alpha-beta) backbone

Structure

x-ray diffraction · 1 distinct chain · 94% helix, 0% strand (DSSP).

Ligands and binding sites

• ACE · Acetyl group · ligand · 4 copies · chains A, B, C, D

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Interfaces

6 interfaces between chains.

• A–D · 857 Ų buried · 4 hydrogen bonds · protein-protein
• C–D · 837 Ų buried · 2 hydrogen bonds · protein-protein
• A–B · 836 Ų buried · 4 hydrogen bonds · protein-protein
• B–C · 827 Ų buried · 3 hydrogen bonds · protein-protein
• A–C · 90 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 32 modified, 4 covalent (nonstandard, covalent ligand).

Compared structures

• 3C3F · alpha/beta-Peptide helix bundles: The GCN4-pLI side chain sequence on an… · the same entry in another collection · chain B against B, TM-score 0.89

Analyse

• Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
• Elsewhere: RCSB PDB 3C3F · PDBe 3C3F