7Y03

Crystal structure of Ricin A chain bound with (S)-2-(2-amino-4-oxo-3,4-dihydropteridine-7-carboxamido)-2-phenylacetic acid

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	PHOTON FACTORY BEAMLINE BL-5A
Synchrotron site	Photon Factory
Beamline	BL-5A
Temperature [K]	95
Detector technology	PIXEL
Collection date	2019-11-29
Detector	DECTRIS PILATUS 6M
Wavelength(s)	1.0
Spacegroup name	P 41 21 2
Unit cell lengths	67.525, 67.525, 141.432
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	48.840 - 1.350
R-factor	0.216
Rwork	0.215
R-free	0.23760
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4huo
RMSD bond length	0.007
RMSD bond angle	1.131
Data reduction software	XDS
Data scaling software	SCALA (3.3.22)
Phasing software	MOLREP
Refinement software	REFMAC (5.8.0131)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	60.936	47.144	1.420
High resolution limit [Å]	1.350	4.270	1.350
Rmerge		0.019	0.595
Rmeas	0.029	0.020	0.621
Rpim	0.008	0.006	0.175
Total number of observations	924116	30021	123024
Number of reflections	72092	2573	10158
<I/σ(I)>	40.2	110.4	4.5
Completeness [%]	99.4	99.8	97.9
Redundancy	12.8	11.7	12.1

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	4	296	PEG 2000, Lithium sulfate, Sodium acetate