X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 278.0
Details ammonium sulfate, cacodylate, Zn acetate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 110.81 α = 90
b = 110.33 β = 90
c = 159.42 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH Mirrors 2002-07-01
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9A 0.98 NSLS X9A

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
2.8 20 95.3 0.086 -- -- 4.3 46387 46387 0.0 0.0 --
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)
2.8 2.9 93.5 0.266 -- 7.2 -- --

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
MAD 2.8 20.0 -- 0.0 46387 46387 2305 -- 0.248 0.248 0.243 0.272 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 2.8 2.9 -- 216 4295 0.312 0.339 0.006 95.3
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 42.6
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 8.55
c_dihedral_angle_d 18.1
c_angle_deg 1.27
c_scangle_it 15.29
c_improper_angle_d 0.91
c_bond_d 0.008
c_scbond_it 10.51
c_mcbond_it 5.29
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.41
Luzzati Sigma A (Observed) 0.42
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.46
Luzzati Sigma A (R-Free Set) 0.47
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11116
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 0

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing
CNS refinement version: 1.0