7EOM

Crystal structure of the Pepper aptamer in complex with HBC508

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRF BEAMLINE BL19U1
Synchrotron site	SSRF
Beamline	BL19U1
Temperature [K]	100
Detector technology	PIXEL
Collection date	2019-11-23
Detector	DECTRIS PILATUS 6M
Wavelength(s)	1.102
Spacegroup name	C 1 2 1
Unit cell lengths	92.078, 34.874, 57.861
Unit cell angles	90.00, 127.35, 90.00

Refinement procedure

Resolution	45.994 - 2.703
R-factor	0.2226
Rwork	0.221
R-free	0.26560
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	7eog
Data reduction software	HKL-3000
Data scaling software	HKL-2000
Phasing software	PHASER
Refinement software	PHENIX (1.14_3260)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	50.000	2.800
High resolution limit [Å]	2.700	5.810	2.700
Rmerge	0.145	0.114	0.369
Rmeas	0.158	0.125	0.401
Rpim	0.061	0.051	0.156
Total number of observations	26402
Number of reflections	4065	426	407
<I/σ(I)>	4
Completeness [%]	98.2	97	98.1
Redundancy	6.5	6.4	6.1
CC(1/2)		0.995	0.958

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP		289	0.1 M ammonium chloride, 0.005 M magnesium chloride, 0.025 M HEPES, pH 7.0, 1.25 M 1,6-hexanediol, 40% MPD