6T7Z

KEAP1 IN COMPLEX WITH COMPOUND 44


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 

wwPDB Validation   3D Report Full Report


This is version 3.0 of the entry. See complete history


Literature

Optimization of linear and cyclic peptide inhibitors of KEAP1-NRF2 protein-protein interaction.

Colarusso, S.De Simone, D.Frattarelli, T.Andreini, M.Cerretani, M.Missineo, A.Moretti, D.Tambone, S.Kempf, G.Augustin, M.Steinbacher, S.Munoz-Sanjuan, I.Park, L.Summa, V.Tomei, L.Bresciani, A.Dominguez, C.Toledo-Sherman, L.Bianchi, E.

(2020) Bioorg Med Chem 28: 115738-115738

  • DOI: https://doi.org/10.1016/j.bmc.2020.115738
  • Primary Citation of Related Structures:  
    6T7V, 6T7Z

  • PubMed Abstract: 

    Inhibition of KEAP1-NRF2 protein-protein interaction is considered a promising strategy to selectively and effectively activate NRF2, a transcription factor which is involved in several pathologies such as Huntington's disease (HD). A library of linear peptides based on the NRF2-binding motifs was generated on the nonapeptide lead Ac-LDEETGEFL-NH 2 spanning residues 76-84 of the Neh2 domain of NRF2 with the aim to replace E78, E79 and E82 with non-acidic amino acids. A deeper understanding of the features and accessibility of the T80 subpocket was also targeted by structure-based design. Approaches to improve cell permeability were investigated using both different classes of cyclic peptides and conjugation to cell-penetrating peptides. This insight will guide future design of macrocycles, peptido-mimetics and, most importantly, small neutral brain-penetrating molecules to evaluate whether NRF2 activators have utility in HD.


  • Organizational Affiliation

    Department of Drug Discovery, IRBM Spa, Via Pontina km 30.600, 00071 Pomezia, Rome, Italy. Electronic address: s.colarusso@irbm.com.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Kelch-like ECH-associated protein 1293Homo sapiensMutation(s): 0 
Gene Names: KEAP1INRF2KIAA0132KLHL19
UniProt & NIH Common Fund Data Resources
Find proteins for Q14145 (Homo sapiens)
Explore Q14145 
Go to UniProtKB:  Q14145
PHAROS:  Q14145
GTEx:  ENSG00000079999 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14145
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
ACE-CYS-ASA-4FB-GLU-THR-GLY-GLU-CYS-NH210synthetic constructMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.153α = 90
b = 75.153β = 90
c = 114.51γ = 120
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-09
    Type: Initial release
  • Version 1.1: 2020-10-28
    Changes: Database references
  • Version 2.0: 2023-05-24
    Changes: Advisory, Atomic model, Database references, Derived calculations, Non-polymer description, Polymer sequence, Source and taxonomy, Structure summary
  • Version 3.0: 2024-06-26
    Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Polymer sequence, Structure summary