X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details PROTEIN WAS CRYSTALLIZED FROM 2.7 M AMMONIUM SULFATE IN 0.1 M TRIS/HCL BUFFER AT PH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.41 α = 90
b = 75.41 β = 90
c = 168.87 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
FILM FILM -- 1996-04
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY -- PHOTON FACTORY --

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
2.4 20 91.6 -- 0.103 -- 3.5 -- 17866 -- 2.0 34.317
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)
2.42 2.57 87.4 -- 0.325 2.4 3.6 --

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
MIR 2.4 20.0 -- 0.0 17866 16645 1221 91.0 0.174 0.174 0.171 0.21 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL V1.0
RMS Deviations
Key Refinement Restraint Deviation
t_it 2.668
t_incorr_chiral_ct 0.0
t_angle_deg 1.266
t_gen_planes 0.014
t_dihedral_angle_d 22.127
t_trig_c_planes 0.009
t_nbd 0.033
t_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1702
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 140

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (ROTAVATA) Data Reduction (data scaling)
CCP4 Structure Solution
TNT V. 5-E Structure Refinement
Software
Software Name Purpose
TNT version: 5E refinement
CCP4 model building