4H7R | pdb_00004h7r

Crystal structure of a parallel 4-helix coiled coil CC-Hex-II

• PDB DOI: https://doi.org/10.2210/pdb4H7R/pdb

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2012-09-20 Released: 2014-02-05 
• Deposition Author(s): Chi, B., Zaccai, N.R., Brady, R.L., Woolfson, D.N.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.33 Å
• R-Value Free: 
  0.227 (Depositor), 0.225 (DCC) 
• R-Value Work: 
  0.198 (Depositor), 0.195 (DCC) 
• R-Value Observed: 
  0.199 (Depositor) 

Literature

TBA

Chi, B., Zaccai, N.R., Brady, R.L., Woolfson, D.N.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 14.13 kDa 
• Atom Count: 1,256 
• Modeled Residue Count: 132 
• Deposited Residue Count: 132 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CC-Hex-II	A, B, C, D	33	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	F [auth C], H [auth D]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
DIO	E [auth B], G [auth C], I [auth D], J [auth D]	1,4-DIETHYLENE DIOXIDE C4 H8 O2 RYHBNJHYFVUHQT-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.33 Å
• R-Value Free:  0.227 (Depositor), 0.225 (DCC) 
• R-Value Work:  0.198 (Depositor), 0.195 (DCC) 
• R-Value Observed: 0.199 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 36.63	α = 90
b = 38.23	β = 90
c = 88.74	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-02-05 
Deposition Author(s): Chi, B., Zaccai, N.R., Brady, R.L., Woolfson, D.N.

Revision History  

• Version 1.0: 2014-02-05
  Type: Initial release
  
• Version 1.1: 2024-11-20
  Changes: Data collection, Database references, Derived calculations, Structure summary