X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN CRYSTALLIZED FROM LIQUOR CONTAINING 1 M SODIUM CITRATE, 0.1 M HEPES PH 7.5, 1 MM BME. CRYO PROTECTION WAS ACHIEVED BY SOAKING CRYSTAL IN MOTHER LIQUOR CONTAINING 20% GLYCEROL FOR 4 HOURS. 20 MM FBP WAS ADDED TO THE CRYO PROTECTION IN THE SOAKING EXPERIMENT

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 169.41 α = 90
b = 169.41 β = 90
c = 204.68 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 102
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II COLLIMATOR 1995-05-15
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
3.2 20 94.0 0.092 -- -- 3.5 -- 54096 -- -3.0 20.8

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 3.2 20.0 -- 0.0 54096 54096 -- 94.0 -- -- 0.211 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL
RMS Deviations
Key Refinement Restraint Deviation
t_nbd 0.023
t_it 3.391
t_gen_planes 0.016
t_trig_c_planes 0.014
t_incorr_chiral_ct 0.0
t_dihedral_angle_d 20.924
t_angle_deg 2.505
t_bond_d 0.016
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7766
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 0

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
TNT V. 5-F Structure Refinement
Software
Software Name Purpose
TNT version: 5F refinement
SCALEPACK data reduction
DENZO data collection