X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details XPRT WAS CRYSTALLISED FROM 18 - 23% PEG 4000, 0.1 M LI2SO4 IN 0.1 M TRIS-HCL, PH 8., pH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.2 α = 90
b = 92.7 β = 90
c = 53.2 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 289
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU MIRRORS 1995-05
Diffraction Radiation
Monochromator Protocol
NI FILTER --
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
1.8 53.2 92.0 0.06 -- -- 3.0 -- 25622 -- 1.0 19.5
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)
1.8 2.0 84.0 0.263 -- 3.2 2.4 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 1.8 8.0 -- 2.0 -- 25198 2495 91.8 -- 0.192 0.192 0.234 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 1.8 1.9 -- 370 3290 0.312 0.366 0.019 81.9
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.5
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 25.0
x_angle_deg 1.37
x_improper_angle_d 1.19
x_mcangle_it 3.38
x_bond_d 0.007
x_scbond_it 3.26
x_scangle_it 3.26
x_mcbond_it 2.14
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.29
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2127
Nucleic Acid Atoms 0
Heterogen Atoms 12
Solvent Atoms 212

Software

Computing
Computing Package Purpose
PROCESS (HIGASHI) Data Reduction (intensity integration)
PROCESS (HIGASHI) 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 refinement
X-PLOR version: 3.1 model building