6ZF8

Keap1 kelch domain bound to a small molecule inhibitor of the Keap1-Nrf2 protein-protein interaction

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	MAX IV BEAMLINE BioMAX
Synchrotron site	MAX IV
Beamline	BioMAX
Temperature [K]	100
Detector technology	PIXEL
Collection date	2019-12-01
Detector	DECTRIS EIGER X 16M
Wavelength(s)	0.976253
Spacegroup name	P 61
Unit cell lengths	103.350, 103.350, 55.019
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	44.750 - 1.750
R-factor	0.1469
Rwork	0.146
R-free	0.16960
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	5fnu
RMSD bond length	0.008
RMSD bond angle	1.030
Data reduction software	XDS (v Mar 15, 2019)
Data scaling software	XDS (v Mar 15, 2019)
Phasing software	PHASER (1.13-2998)
Refinement software	PHENIX (1.13_2998)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	44.750	1.813
High resolution limit [Å]	1.750	1.750
Rmerge	0.061	0.148
Rmeas	0.064	0.166
Rpim	0.020	0.073
Number of reflections	65841	6254
<I/σ(I)>	24.17	7.26
Completeness [%]	99.4	94.54
Redundancy	9.2	4.8
CC(1/2)	0.999	0.981

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	0.5 M Ammonium sulfate, 0.1 M Sodium citrate tribasic dihydrate pH 5.6 and 1.0 M Lithium sulfate monohydrate