4X7K

Co-crystal Structure of PERK bound to 4-{2-amino-3-[5-fluoro-2-(methylamino)quinazolin-6-yl]-4-methylbenzoyl}-1-methyl-2,5-diphenyl-1,2-dihydro-3H-pyrazol-3-one inhibitor

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	0.18M Na/K Tartrate, 5% PEG-3350, 0.1M HEPES pH 7.0

Crystal Properties
Matthews coefficient	Solvent content
2.92	57.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.757	α = 90
b = 81.757	β = 90
c = 128.621	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	CCD	ADSC QUANTUM 315		2011-06-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	0.9774	ALS	5.0.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.8	50	100	0.102	8.3	10.4		41166

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.86	100		0.954		10.5	4053

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4X7J	1.8	40.88	41048	2082	99.5	0.1771	0.1762	0.1957	RANDOM	30.17

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.37			0.37		-0.74

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.816
r_dihedral_angle_4_deg	18.599
r_dihedral_angle_3_deg	11.42
r_dihedral_angle_1_deg	4.718
r_scangle_it	3.693
r_scbond_it	2.362
r_mcangle_it	1.491
r_angle_refined_deg	1.057
r_mcbond_it	0.822
r_chiral_restr	0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.816
r_dihedral_angle_4_deg	18.599
r_dihedral_angle_3_deg	11.42
r_dihedral_angle_1_deg	4.718
r_scangle_it	3.693
r_scbond_it	2.362
r_mcangle_it	1.491
r_angle_refined_deg	1.057
r_mcbond_it	0.822
r_chiral_restr	0.07
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2121
Nucleic Acid Atoms
Solvent Atoms	262
Heterogen Atoms	58

Software

Software
Software Name	Purpose
HKL-2000	data reduction
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data scaling
REFMAC	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.