X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.8
Details 18MG/ML PROTEIN, 10MM CACL2 IN 50 MM HEPES AT PH=7.8 WAS EQUILIBRATED AGAINST 50% AMMONIUM SULFATE IN THE SAME BUFFER.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.29 α = 90
b = 68.72 β = 94.27
c = 50.59 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 300
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-06-08
Diffraction Radiation
Monochromator Protocol
GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE D41A -- LURE D41A

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
1.95 18.95 98.5 -- 0.072 -- 2.9 -- 20818 -- 0.0 0.6
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)
1.95 2.0 83.5 -- 0.139 4.7 2.08 --

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 1.95 20.0 -- 1.0 -- 20799 1039 98.5 -- 0.196 0.193 0.237 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.8
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 33.519
p_staggered_tor 18.811
p_planar_tor 1.019
p_xyhbond_nbd 0.169
p_xhyhbond_nbd 0.162
p_multtor_nbd 0.215
p_bond_d 0.009
p_angle_d 0.03
p_planar_d 0.03
p_hb_or_metal_coord 0.0
p_mcbond_it 2.05
p_mcangle_it 2.704
p_scbond_it 2.929
p_scangle_it 4.547
p_plane_restr 0.005
p_chiral_restr 0.08
p_singtor_nbd 0.177
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2550
Nucleic Acid Atoms 0
Heterogen Atoms 14
Solvent Atoms 233

Software

Computing
Computing Package Purpose
MOSFLM, CCP4 Data Reduction (intensity integration)
CCP4 Data Reduction (data scaling)
AMORE Structure Solution
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
AMORE model building