X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 7.5
Details PROTEIN-DNA COMPLEX WAS CRYSTALLIZED USING A RESERVOIR CONTAINING 16.0% PEG 3350, 180 MM SODIUM ACETATE, AND 50 MM HEPES, PH 7.5., VAPOR DIFFUSION

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.54 α = 90
b = 79.82 β = 107.11
c = 54.94 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1996-04-02
Diffraction Radiation
Monochromator Protocol
SI(111) CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

Data Collection

Overall
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
2.2 20 95.0 -- 0.086 -- 2.6 -- 21036 0.0 0.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.2 2.28 84.8 -- 0.18 -- -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.2 20.0 -- 0.0 21036 21036 2079 95.4 -- 0.227 0.232 0.33 --
RMS Deviations
Key Refinement Restraint Deviation
t_bond_d 0.02
t_incorr_chiral_ct 0.0
t_it 6.5
t_dihedral_angle_d 22.1
t_trig_c_planes 0.015
t_gen_planes 0.006
t_nbd 0.016
t_angle_deg 3.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2614
Nucleic Acid Atoms 631
Heterogen Atoms 31
Solvent Atoms 321

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
MERLOT phasing
TNT refinement version: 5D