6T7V

KEAP1 IN COMPLEX WITH PEPTIDE 8


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.207 

wwPDB Validation   3D Report Full Report


This is version 1.1 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: 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 ...

    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.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Kelch-like ECH-associated protein 1A293Homo 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
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14145
Protein Feature View
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
LEU-ASP-PRO-GLU-THR-GLY-GLU-PHE-LEUB [auth I]9Homo sapiensMutation(s): 0 
Gene Names: NFE2L2NRF2
UniProt & NIH Common Fund Data Resources
Find proteins for Q16236 (Homo sapiens)
Explore Q16236 
Go to UniProtKB:  Q16236
PHAROS:  Q16236
Entity Groups  
UniProt GroupQ16236
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download Ideal Coordinates CCD File 
C [auth A]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.207 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.43α = 90
b = 75.43β = 90
c = 114.497γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2019-10-23 
  • Released Date: 2020-09-09 
  • Deposition Author(s): Colarusso, S.

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