8BL5 | pdb_00008bl5

Crystal Structure of Sam0.2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 
    0.298 (Depositor), 0.291 (DCC) 
  • R-Value Work: 
    0.257 (Depositor), 0.254 (DCC) 

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

Validation slider image for 8BL5

This is version 1.1 of the entry. See complete history

Literature

A Complementarity-Based Approach to De Novo Binder Design.

Maksymenko, K.Hatskovska, V.Coles, M.Aghaallaei, N.Pashkovskaia, N.Borbaran-Bravo, N.Pilz, M.Bucher, P.Volz, M.Pereira, J.Hartmann, M.D.Tabatabai, G.Feucht, J.Liebau, S.Muller, P.Lupas, A.N.Skokowa, J.ElGamacy, M.

(2025) Adv Sci (Weinh) 12: e02015-e02015

  • DOI: https://doi.org/10.1002/advs.202502015
  • Primary Citation Related Structures: 
    8BL5, 8BL9

  • PubMed Abstract: 

    De novo design of binders capable of targeting arbitrarily selected epitopes remains a substantial challenge. Here, a generalizable computational strategy is presented to design site-specific protein binders, obviating steps of extensive empirical optimization or in vitro screening. The dock-and-design pipeline retrieves complementary scaffolds from a protein structure database to a given query epitope, where the scaffold is mutated to carve a binding site de novo. The docking step utilizes a novel fingerprint that greatly simplifies and accelerates the surface complementarity evaluation. As proof-of-concept, we designed protein binders to target three distinct epitopes on two different oncogenic targets; vascular endothelial growth factor (VEGF) and interleukin-7 receptor-α (IL-7Rα). Experimental characterization of only 24 candidates identified nanomolar binders against each of the target epitopes, where the binders belonged to five different folds. Several designs were active in vitro. Moreover, anti-VEGF designs showed tumor-inhibiting activity in vivo, highlighting their therapeutic potential.


  • Organizational Affiliation
    • Department of Protein Evolution, Max Planck Institute for Biology, 72076, Tübingen, Germany.

Macromolecule Content 

  • Total Structure Weight: 16.72 kDa 
  • Atom Count: 936 
  • Modeled Residue Count: 117 
  • Deposited Residue Count: 148 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Sam0.2148synthetic constructMutation(s): 0 

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free:  0.298 (Depositor), 0.291 (DCC) 
  • R-Value Work:  0.257 (Depositor), 0.254 (DCC) 
Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.807α = 90
b = 77.807β = 90
c = 78.164γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
MOLREPphasing

Structure Validation

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Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Max Planck SocietyGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2024-05-22
    Type: Initial release
  • Version 1.1: 2025-12-10
    Changes: Database references, Structure summary