9HAC | pdb_00009hac

De novo designed BBF-14 beta barrel with computationally designed BBF-14_b4 binder


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free: 
    0.283 (Depositor), 0.285 (DCC) 
  • R-Value Work: 
    0.238 (Depositor), 0.240 (DCC) 
  • R-Value Observed: 
    0.241 (Depositor) 

Starting Model: in silico
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

One-shot design of functional protein binders with BindCraft.

Pacesa, M.Nickel, L.Schellhaas, C.Schmidt, J.Pyatova, E.Kissling, L.Barendse, P.Choudhury, J.Kapoor, S.Alcaraz-Serna, A.Cho, Y.Ghamary, K.H.Vinue, L.Yachnin, B.J.Wollacott, A.M.Buckley, S.Westphal, A.H.Lindhoud, S.Georgeon, S.Goverde, C.A.Hatzopoulos, G.N.Gonczy, P.Muller, Y.D.Schwank, G.Swarts, D.C.Vecchio, A.J.Schneider, B.L.Ovchinnikov, S.Correia, B.E.

(2025) Nature 

  • DOI: https://doi.org/10.1038/s41586-025-09429-6
  • Primary Citation of Related Structures:  
    9HAC, 9HAD, 9HAE, 9HAF

  • PubMed Abstract: 

    Protein-protein interactions are at the core of all key biological processes. However, the complexity of the structural features that determine protein-protein interactions makes their design challenging. Here we present BindCraft, an open-source and automated pipeline for de novo protein binder design with experimental success rates of 10-100%. BindCraft leverages the weights of AlphaFold2 (ref. 1 ) to generate binders with nanomolar affinity without the need for high-throughput screening or experimental optimization, even in the absence of known binding sites. We successfully designed binders against a diverse set of challenging targets, including cell-surface receptors, common allergens, de novo designed proteins and multi-domain nucleases, such as CRISPR-Cas9. We showcase the functional and therapeutic potential of designed binders by reducing IgE binding to birch allergen in patient-derived samples, modulating Cas9 gene editing activity and reducing the cytotoxicity of a foodborne bacterial enterotoxin. Last, we use cell-surface-receptor-specific binders to redirect adeno-associated virus capsids for targeted gene delivery. This work represents a significant advancement towards a 'one design-one binder' approach in computational design, with immense potential in therapeutics, diagnostics and biotechnology.


  • Organizational Affiliation
    • Laboratory of Protein Design and Immunoengineering, École Polytechnique Fédérale de Lausanne and Swiss Institute of Bioinformatics, Lausanne, Switzerland. martin.pacesa@epfl.ch.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BBF-14A,
B [auth C]
122synthetic constructMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
BBF-14_binder4C [auth B],
D
147synthetic constructMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
P6G (Subject of Investigation/LOI)
Query on P6G

Download Ideal Coordinates CCD File 
E [auth A],
H [auth C]
HEXAETHYLENE GLYCOL
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
PG4 (Subject of Investigation/LOI)
Query on PG4

Download Ideal Coordinates CCD File 
G [auth C]TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
K
Query on K

Download Ideal Coordinates CCD File 
F [auth A],
I [auth C]
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
J [auth C]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free:  0.283 (Depositor), 0.285 (DCC) 
  • R-Value Work:  0.238 (Depositor), 0.240 (DCC) 
  • R-Value Observed: 0.241 (Depositor) 
Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.43α = 78.426
b = 41.53β = 82.008
c = 94γ = 87.018
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerland--

Revision History  (Full details and data files)

  • Version 1.0: 2024-12-18
    Type: Initial release
  • Version 1.1: 2024-12-25
    Changes: Database references
  • Version 1.2: 2025-07-16
    Changes: Database references
  • Version 1.3: 2025-09-03
    Changes: Database references