X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details CRYSTALLIZATION DROP CONTAINED 3 PARTS RESERVOIR SOLUTION AND 1 PART PROTEIN SOLUTION. RESERVOIR: 14%- 18% PEG 4000, 0.1M IMIDAZOLE, 0.05M MGCL2 AT PH 6.5. PROTEIN SOLUTION: 10MG/ML PROTEIN AND 0.01M TRIS-HCL AT PH 7.8.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.4 α = 90
b = 79.7 β = 90
c = 91.1 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 291
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS SUPPER DOUBLE MIRRORS 1994-08
Diffraction Radiation
Monochromator Protocol
NI FILTER AND SUPPER DOUBLE MIRRORS --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
2.6 35 91.6 0.066 0.076 -- 3.3 -- 14445 -- 1.0 12.9
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)
2.6 2.7 59.7 -- -- -- -- --

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
MIRAS 2.7 8.0 -- 2.0 -- 12771 1301 95.4 -- 0.161 0.161 0.245 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.7 2.82 -- 132 1273 0.206 0.225 0.019 85.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 15.6
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.7
x_bond_d 0.012
x_improper_angle_d 1.5
x_dihedral_angle_d 27.4
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3564
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 138

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
WEISSMAN'S (MODIFIED LOCALLY) Data Reduction (data scaling)
PHASES, X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
PHASES model building
X-PLOR version: 3.1 model building
X-PLOR version: 3.1 refinement