X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 298.0
Details 0.1M sodium acetate buffer, 2.0M sodium formate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K (PROTEIN SOLUTION: 50mM MOPS pH 7.5, 50mM KCL, 5mM MG CL2, 2 mM DTT, 40.2 MG/ML PROTEIN. WELL SOLUTION: 0.1 M NA ACETATE pH 4.6, 2.0 M NA FORMATE)

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 111.99 α = 90
b = 185.72 β = 90
c = 45.08 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 115
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-11-17
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 17-BM 1.000 APS 17-BM

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 20 91.2 0.1 -- -- 5.0 269253 55584 -- -- --
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)
2.0 2.08 90.4 0.208 -- 4.8 3.0 --

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
MAD 2.0 10.0 -- 0.0 55584 -- 2896 86.7 0.2049 0.206 -- 0.3146 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.0
s_similar_adp_cmpnt 0.086
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.025
s_non_zero_chiral_vol 0.024
s_zero_chiral_vol 0.017
s_from_restr_planes 0.0181
s_similar_dist 0.0
s_angle_d 0.061
s_bond_d 0.021
Coordinate Error
Parameter Value
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 7116.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6755
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 318

Software

Computing
Computing Package Purpose
MAR Data Reduction (intensity integration)
D*TREK Data Reduction (data scaling)
SHELXD Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELXD model building