X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.2
Details PROTEIN WAS CRYSTALLISED FROM 1.8 M AMMONIUM SULFATE IN 0.1 M TRIS-HCL AT PH 7.2 IN THE PRESENCE OF AHB, NADPH, AND MN2+.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 110.8 α = 90
b = 61.2 β = 95
c = 161.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH 2 MIRRORS 1996-06-15
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 -- ESRF BM14

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
1.6 26 96.6 0.041 0.054 -- 2.9 -- 299230 -- -- 14.1
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)
1.6 1.64 96.6 0.079 0.096 14.6 2.9 --

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 1.6 10.0 -- 0.0 -- 276291 13878 97.0 -- 0.196 0.196 0.224 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 1.6 1.7 -- 2207 42338 0.245 0.259 0.006 94.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.6
Anisotropic B[1][1] -0.18
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.23
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.05
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 21.4
x_scangle_it 2.39
x_scbond_it 1.58
x_mcangle_it 1.77
x_mcbond_it 1.12
x_improper_angle_d 1.39
x_angle_deg 1.3
x_bond_d 0.008
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 15718
Nucleic Acid Atoms 0
Heterogen Atoms 213
Solvent Atoms 2089

Software

Software
Software Name Purpose
X-PLOR refinement version: 3.851
MOSFLM data reduction
SCALA data scaling
X-PLOR phasing version: 3.851