X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5
Details 2.0 M AMMONIUM SULFATE, 0.1 M CITRATE PH 5.0, 10 MM DTT, 0.2 MM EDTA

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 43.05 α = 90
b = 43.53 β = 90
c = 59.87 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU YALE MIRRORS 1996-09
Diffraction Radiation
Monochromator Protocol
YALE MIRRORS --
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
2.2 30 90.4 0.066 0.066 -- 2.6 -- 5530 -- 5.0 4.02
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 55.5 0.12 0.129 10.13 1.5 --

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 6.0 -- 2.0 -- 5530 418 91.23 -- 0.172 0.172 0.238 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 2.2 2.3 -- 33 388 0.2104 0.2483 -- 61.15
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 12.5
Anisotropic B[1][1] -0.02268
Anisotropic B[1][2] 0.00818
Anisotropic B[1][3] -0.01218
Anisotropic B[2][2] -0.01178
Anisotropic B[2][3] 0.00154
Anisotropic B[3][3] 0.09292
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.568
x_bond_d 0.014
x_angle_deg 1.907
x_dihedral_angle_d 23.65
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.12
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1260
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 26

Software

Software
Software Name Purpose
X-PLOR model building version: 3.0
X-PLOR refinement version: 3.0
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing version: 3.0