8B16

A hexameric barrel state of a de novo coiled-coil assembly: CC-Pent2-I17Q

• PDB DOI: https://doi.org/10.2210/pdb8B16/pdb

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


• Deposited: 2022-09-09 Released: 2023-09-20 
• Deposition Author(s): Martin, F.J.O., Dawson, W.M., Woolfson, D.N.
• Funding Organization(s): European Research Council (ERC), Biotechnology and Biological Sciences Research Council (BBSRC), Engineering and Physical Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.259 
• R-Value Work: 0.219 
• R-Value Observed: 0.221 

Literature

Exchange, promiscuity, and orthogonality in a set of de novo coiled-coil assemblies

Martin, F.J.O., Orr-Ewing, A.J., Dawson, W.M., Woolfson, D.N.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Biological Assembly Evidence: equilibrium centrifugation

Biological Assembly 2  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 40.5 kDa 
• Atom Count: 2,894 
• Modelled Residue Count: 366 
• Deposited Residue Count: 384 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CC-Pent2-I17Q	A [auth E], B [auth A], C [auth B], D [auth L], E [auth F], F [auth D], G [auth K], H, I [auth G], J [auth I], K [auth C], L [auth J]	32	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	M [auth J]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.259 
• R-Value Work: 0.219 
• R-Value Observed: 0.221 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 31.885	α = 74.45
b = 43.292	β = 88.71
c = 57.216	γ = 86.99

Software Package:

Software Name	Purpose
Aimless	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
xia2	data reduction
Arcimboldo	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-09-20 
Deposition Author(s): Martin, F.J.O., Dawson, W.M., Woolfson, D.N.

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Funding Organization	Location	Grant Number
European Research Council (ERC)	European Union	340764
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/L01386X/1
Engineering and Physical Sciences Research Council	United Kingdom	EP/G036764

Revision History  

• Version 1.0: 2023-09-20
  Type: Initial release