Experiment: 2XM9

Structure of a small molecule inhibitor with the kinase domain of Chk2

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2CN5	PDB ENTRY 2CN5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				0.1 M HEPES PH 7.5, 0.2 M MAGNESIUM NITRATE, 8-16% (W/V) PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
3.43	64.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.36	α = 90
b = 91.36	β = 90
c = 92.95	γ = 120

Symmetry
Space Group	P 32 2 1

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	ADSC CCD	TOROIDAL MIRROR	2008-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.32	41	99.9	0.07	7.23	5.35		15926			49.36

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	2.5	2.64	100		0.52	1.45	5.43

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	MOLECULAR REPLACEMENT	PDB ENTRY 2CN5	2.5	40.07	1.36	15900	792	99.8	0.189	0.186	0.1828	0.238	0.2315

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]
0.2514			0.2514		-0.5028

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.234
f_angle_d	1.071
f_chiral_restr	0.066
f_bond_d	0.008
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2242
Nucleic Acid Atoms
Solvent Atoms	153
Heterogen Atoms	32

Software

Software
Software Name	Purpose
PHENIX	refinement
iMOSFLM	data reduction
SCALA	data scaling
PHASER	phasing