Experiment: 4M7I

Crystal Structure of GSK6157 Bound to PERK (R587-R1092, delete A660-T867) at 2.34A Resolution

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4G31	PDB entry 4G31

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	100 mM BTP at pH 7.0 with a 3.5 4.9M linear gradient of ammonium acetate , VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.35	63.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.06	α = 90
b = 101.06	β = 90
c = 158.028	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	RAYONIX MX300HS		2010-10-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97872	APS	21-ID-G

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	2.34	48	99.9	0.05	44.5	11.8	20797	20779		-3

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	2.34	2.42	100		0.408	6.9	12	2032

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	Difference density	PDB entry 4G31	2.34	29.324	1.33	20797	20731	673	99.75	0.2095	0.2074	0.2017	0.2816	0.2747

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]
12.0528			12.0528		-17.554

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.488
f_angle_d	1.012
f_chiral_restr	0.065
f_bond_d	0.007
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1974
Nucleic Acid Atoms
Solvent Atoms	124
Heterogen Atoms	31

Software

Software
Software Name	Purpose
MD2	data collection
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling