6WO2

Crystal Structure of the Grb2 SH2 Domain in Complex with a Tripeptide: Ac-pY-Ac6c-N-isohexyl


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.5298An aqueous solution containing a 1.5 molar ratio of ligand to protein, ca. 10 mg/mL, was prepared. 4.0 ul of this solution was mixed with 3.0 ul of a precipitant solution containing 0.2 M sodium citrate tribasic dihydrate, 0.1 M HEPES, and 20% v/v 2-propanol (Hampton crystal screen I, condition no. 27), and allowed to equilibrate with 350 ul of the aforementioned precipitant well solution. Usable crystals grew after 4 weeks

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 32.225α = 90
b = 62.72β = 90
c = 90.137γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV++2011-06-30MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

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
11.7851.4894.60.07214.15.617182
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)
11.781.8479.90.5443.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT4P9V251.481184464596.550.20390.20010.2754RANDOM29.501
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]
2.65-1.47-1.18
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.213
r_dihedral_angle_3_deg18.638
r_dihedral_angle_4_deg15.948
r_dihedral_angle_1_deg7.868
r_angle_refined_deg1.887
r_chiral_restr0.124
r_bond_refined_d0.02
r_gen_planes_refined0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1668
Nucleic Acid Atoms
Solvent Atoms74
Heterogen Atoms96

Software

Software
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction
PHASERphasing