8EHV

Kelch domain of human KEAP1 bound to Nrf2 cyclic peptide, c[DhA-GDPET(bAla)E]

• PDB DOI: https://doi.org/10.2210/pdb8EHV/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2022-09-14 Released: 2023-09-20 
• Deposition Author(s): Muellers, S.N., Allen, K.N.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free: 0.253 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 

Literature

Machine-learning analysis of molecular dynamics simulations to elucidate the effect of strain and preorganization on conformational modes of motion in cyclic peptides

Muellers, S.N., Allen, K.N., Whitty, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 74.54 kDa 
• Atom Count: 4,608 
• Modelled Residue Count: 575 
• Deposited Residue Count: 679 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kelch-like ECH-associated protein 1	A, B	336	Homo sapiens	Mutation(s): 3  Gene Names: KEAP1, INRF2, KIAA0132, KLHL19
UniProt & NIH Common Fund Data Resources
Find proteins for Q14145 (Homo sapiens) Explore Q14145  Go to UniProtKB:  Q14145
PHAROS:  Q14145 GTEx:  ENSG00000079999

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
cyclic peptide c[DhA-GDPET(bAla)E	C [auth P]	7	synthetic construct	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
B3A	C [auth P]	L-PEPTIDE LINKING	C4 H9 N O2		ALA

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free: 0.253 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 162.349	α = 90
b = 68.849	β = 117.63
c = 77.215	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-09-20 
Deposition Author(s): Muellers, S.N., Allen, K.N.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-09-20
  Type: Initial release
  
• Version 2.0: 2023-11-15
  Changes: Advisory, Atomic model, Data collection