Experiment: 3F9N

Crystal structure of chk1 kinase in complex with inhibitor 38

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IA8	PDB entry 1IA8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	298	13% PEG 8000, 0.1M Ammonium sulfate, 2% Glycerol, 0.1M Cacodylate buffer pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.06	α = 90
b = 65.75	β = 96.24
c = 58.41	γ = 90

Symmetry
Space Group	P 1 21 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	IMAGE PLATE	RIGAKU RAXIS IV++		2006-08-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.9	50	98	0.066	0.066	18	3	26390	26390			29.262

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.9	1.97	100		0.383	2.8	3	2662

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB entry 1IA8	1.9	50	26375	1326	97.94	0.1836	0.1819	0.1768	0.2158	0.2108	RANDOM	39.78

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]
2.68696247		-0.98765367	4.04991319		-6.73687567

RMS Deviations
Key	Refinement Restraint Deviation
t_dihedral_angle_d	21.074
t_it	1.625
t_angle_deg	1.079
t_nbd	0.047
t_gen_planes	0.016
t_trig_c_planes	0.011
t_bond_d	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2064
Nucleic Acid Atoms
Solvent Atoms	257
Heterogen Atoms	54

Software

Software
Software Name	Purpose
CrystalClear	data collection
BUSTER-TNT	refinement
HKL-2000	data reduction
HKL-2000	data scaling
BUSTER-TNT	phasing