9N0K | pdb_00009n0k

Crystal structure of KABLE triple mutant (Ile12Phe, Lys14Pro, Leu20Trp)

• PDB DOI: https://doi.org/10.2210/pdb9N0K/pdb

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2025-01-24 Released: 2025-08-20 
• Deposition Author(s): Correy, G.J., Fraser, J.S.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free: 
  0.275 (Depositor), 0.273 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.225 (DCC) 
• R-Value Observed: 
  0.227 (Depositor) 

Starting Model: in silico

Literature

De novo designed KABLE protein

Correy, G.J., Fraser, J.S.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

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

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Biological Assembly 5  

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

Biological assembly 5 assigned by authors and generated by PISA (software)

Biological Assembly 6  

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

Biological assembly 6 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 82.55 kDa 
• Atom Count: 5,953 
• Modeled Residue Count: 756 
• Deposited Residue Count: 762 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
De novo designed KABLE protein	A, B, C, D, E, F	127	synthetic construct	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free:  0.275 (Depositor), 0.273 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.225 (DCC) 
• R-Value Observed: 0.227 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.851	α = 90
b = 89.643	β = 99.79
c = 89.997	γ = 90

Software Package:

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

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-08-20 
Deposition Author(s): Correy, G.J., Fraser, J.S.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM145238

Revision History  

• Version 1.0: 2025-08-20
  Type: Initial release