7K32

Crystal structure of Endonuclease Q complex with 27-mer duplex substrate with an abasic lesion at the active site

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 24-ID-C
Synchrotron site	APS
Beamline	24-ID-C
Temperature [K]	100
Detector technology	PIXEL
Collection date	2019-10-13
Detector	DECTRIS PILATUS3 S 6M
Wavelength(s)	0.979
Spacegroup name	H 3
Unit cell lengths	154.020, 154.020, 118.510
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	88.590 - 3.110
R-factor	0.2016
Rwork	0.199
R-free	0.24710
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	5zb8
Data reduction software	XDS
Data scaling software	XDS
Phasing software	PHASER
Refinement software	PHENIX (1.19_4092)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	88.600	88.600	3.330
High resolution limit [Å]	3.110	8.800	3.110
Rmerge	0.111	0.036	1.002
Rmeas	0.148	0.047	1.318
Rpim	0.097	0.030	0.849
Total number of observations	39581	1733	7368
Number of reflections	17827	777	3261
<I/σ(I)>	7.4	24	1.2
Completeness [%]	94.7	93.3	96
Redundancy	2.2	2.2	2.3
CC(1/2)	0.981	0.991	0.748

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7.4	295	15 mM Tris-HCl pH 7.4, 0.15 M NaCl, 1 mM MgCl2, and 4 mM beta-mercaptoethanol