6T7Z image
Entry Detail
PDB ID:
6T7Z
Keywords:
Title:
KEAP1 IN COMPLEX WITH COMPOUND 44
Biological Source:
Host Organism:
PDB Version:
Deposition Date:
2019-10-23
Release Date:
2020-09-09
Method Details:
Experimental Method:
Resolution:
2.00 Å
R-Value Free:
0.25
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 32 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Kelch-like ECH-associated protein 1
Chain IDs:A
Chain Length:293
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:ACE-CYS-ASA-4FB-GLU-THR-GLY-GLU-CYS-NH2
Chain IDs:B
Chain Length:10
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
Primary Citation
Optimization of linear and cyclic peptide inhibitors of KEAP1-NRF2 protein-protein interaction.
Bioorg.Med.Chem. 28 115738 115738 (2020)
PMID: 33065433 DOI: 10.1016/j.bmc.2020.115738

Abstact

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-NH2 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.

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Disease

Primary Citation of related structures