2YM8

Crystal structure of checkpoint kinase 1 (Chk1) in complex with inhibitors


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2WMWPDB ENTRY 2WMW

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1DL-MALIC ACID, PEG 3350.
Crystal Properties
Matthews coefficientSolvent content
2.9658.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 44.77α = 90
b = 65.47β = 95.38
c = 57.93γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRIGAKU CCD2008-04-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.0715.3191.90.0882.1187221.522.93
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.072.1880.10.342.32.1

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 2WMW2.0715.3071.8931929162580.170.19140.18920.23131.5
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]
-2.04431.67780.40071.6436
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.649
f_angle_d0.824
f_chiral_restr0.056
f_bond_d0.004
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2014
Nucleic Acid Atoms
Solvent Atoms121
Heterogen Atoms63

Software

Software
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing