4N3W

Crystal Structure of the Bromodomain-PHD Finger Module of Human Transcriptional Co-Activator CBP in complex with Acetylated Histone 4 Peptide (H4K20ac).


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.529325% PEG 3,350, 0.2 M magnesium chloride, and 0.1 M HEPES, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.448.76

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 92.46α = 90
b = 59.312β = 102.96
c = 53.444γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2702010-03-31MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X6A1.0NSLSX6A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.830991211211

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.919.5822200322003111998.60.2560.236120.23330.28572RANDOM45.38
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]
-1.052.360.6-0.08
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.246
r_dihedral_angle_4_deg19.511
r_dihedral_angle_3_deg15.804
r_dihedral_angle_1_deg7.224
r_angle_refined_deg1.897
r_angle_other_deg0.951
r_chiral_restr0.134
r_bond_refined_d0.017
r_gen_planes_refined0.01
r_bond_other_d0.001
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.246
r_dihedral_angle_4_deg19.511
r_dihedral_angle_3_deg15.804
r_dihedral_angle_1_deg7.224
r_angle_refined_deg1.897
r_angle_other_deg0.951
r_chiral_restr0.134
r_bond_refined_d0.017
r_gen_planes_refined0.01
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1573
Nucleic Acid Atoms
Solvent Atoms127
Heterogen Atoms2

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling