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), 0.283 (DCC) 
  • R-Value Work: 
    0.238 (Depositor), 0.239 (DCC) 
  • R-Value Observed: 
    0.241 (Depositor) 

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

Validation slider image for 9HAC

Ligand Structure Quality Assessment 


This is version 1.4 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 646: 483-492

  • DOI: https://doi.org/10.1038/s41586-025-09429-6
  • Primary Citation 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.

Macromolecule Content 

  • Total Structure Weight: 63.45 kDa 
  • Atom Count: 4,094 
  • Modeled Residue Count: 490 
  • Deposited Residue Count: 538 
  • Unique protein chains: 2

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
BBF-14A,
B [auth C]
122synthetic constructMutation(s): 0 
Find similar proteins by:|  3D Structure
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
BBF-14_binder4C [auth B],
D
147synthetic constructMutation(s): 0 

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), 0.283 (DCC) 
  • R-Value Work:  0.238 (Depositor), 0.239 (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
  • Version 1.4: 2025-10-22
    Changes: Database references