9HNH | pdb_00009hnh

A7 Synthetic Alpha solenoid Protein

• PDB DOI: https://doi.org/10.2210/pdb9HNH/pdb

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Expression System: Escherichia coli KRX
• Mutation(s): No 


• Deposited: 2024-12-10 Released: 2025-12-03 
• Deposition Author(s): Pretorius, D., Murray, J.W.
• Funding Organization(s): Engineering and Physical Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free: 
  0.301 (Depositor), 0.299 (DCC) 
• R-Value Work: 
  0.257 (Depositor), 0.256 (DCC) 
• R-Value Observed: 
  0.259 (Depositor) 

Starting Model: in silico

Literature

De Novo solenoid protein design

Pretorius, D., Murray, J.W.

(2025) Commun Chem 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 21.28 kDa 
• Atom Count: 1,259 
• Modeled Residue Count: 151 
• Deposited Residue Count: 173 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chains: A	A	173	synthetic construct	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free:  0.301 (Depositor), 0.299 (DCC) 
• R-Value Work:  0.257 (Depositor), 0.256 (DCC) 
• R-Value Observed: 0.259 (Depositor) 

Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.841	α = 90
b = 74.841	β = 90
c = 50.878	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-03 
Deposition Author(s): Pretorius, D., Murray, J.W.

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Funding Organization	Location	Grant Number
Engineering and Physical Sciences Research Council	United Kingdom	EP/S022856/1

Revision History  

• Version 1.0: 2025-12-03
  Type: Initial release