X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.8
Details CO-CRYSTALS WERE GROWN BY THE HANGING-DROP VAPOR DIFFUSION METHOD. RESERVOIR BUFFER CONTAINED 2.3 MOLAR AMMONIUM SULFATE AND 100 MILLIMOLAR CACODYLATE BUFFER PH 4.8. PROTEIN SOLUTION 40 MILLIGRAM PER MILLILITER WAS MIXED WITH AN EQUAL VOLUME OF RESERVOIR CONTAINING 10 MILLIMOLAR DI-NAG. CRYSTALS ABOUT 0.5 X 0.2 X 0.2 MILLIMETER IN SIZE WERE FORMED WITHIN 2-3 DAYS., VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 108.79 α = 90
b = 99.96 β = 90
c = 86.31 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH 345 MM IMAGE PLATE 1999-04-04
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, HAMBURG X11

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 15 96.9 0.024 -- -- -- -- 76047 -- -- --
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 1.86 90.8 0.095 -- 4738.0 -- --

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 1.8 15.0 -- 0.0 -- 76047 7659 86.9 -- 0.183 0.171 0.224 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.8
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.024
p_mcangle_it 2.016
p_scangle_it 3.496
p_planar_d 0.028
p_planar_tor 3.5
p_singtor_nbd 0.184
p_chiral_restr 0.117
p_scbond_it 2.584
p_staggered_tor 15.0
p_multtor_nbd 0.241
p_bond_d 0.013
p_mcbond_it 1.481
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6767
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 821

Software

Computing
Computing Package Purpose
SOFTWARE AT SYNCHROTRON Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
REFMAC, ARP Structure Refinement
Software
Software Name Purpose
SCALEPACK data reduction
REFMAC version: / ARP refinement
AMORE model building
SYNCHROTRON data collection