8HNS

Crystal structure of an anti-CRISPR protein AcrIIC4 in apo form

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRF BEAMLINE BL17U1
Synchrotron site	SSRF
Beamline	BL17U1
Temperature [K]	100
Detector technology	PIXEL
Collection date	2018-10-11
Detector	DECTRIS EIGER X 16M
Wavelength(s)	0.9791
Spacegroup name	P 4
Unit cell lengths	83.179, 83.179, 27.814
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	37.200 - 2.540
R-factor	0.2218
Rwork	0.221
R-free	0.24280
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	in-house model ( the crystal structure of a SeMet-derivative of this protein using SAD)
RMSD bond length	0.021
RMSD bond angle	1.418
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Phasing software	AutoSol
Refinement software	PHENIX (1.19.2_4158)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	2.580
High resolution limit [Å]	2.540	2.540
Rmerge	0.042	0.830
Number of reflections	6556	328
<I/σ(I)>	37.8
Completeness [%]	99.5
Redundancy	7.3
CC(1/2)	0.999	0.796

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP		289	tris, sodium chloride, sodium acetate, PEG 3350, glycerol