X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.6
Temperature 291.0
Details WELL: 100 MM TRIS PH 7.6 480 MM MGCL2 10 MM MGOAC2 10% ETHYLENE GLYCOL 5% PEG 4000. PROTEIN STOCK: 18 MG/ML ERLBD 25 MM TRIS PH 7.4 200 MM NACL 1 MM EDTA 1 MM DTT 20 MICROMOLAR ESTRADIOL 0.1% BETA-OCTYL GLUCOSIDE AT 18 CELSIUS., vapor diffusion - hanging drop, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 147 α = 90
b = 147 β = 90
c = 168.9 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU SPHERICAL MIRRORS 1997-06
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A -- NSLS X4A

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 50 99.1 0.068 0.075 -- -- -- 33401 -- -- --
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 98.6 0.404 0.329 2.6 -- --

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
MIR 2.8 50.0 -- 2.0 -- 15339 1539 87.7 -- 0.223 0.223 0.274 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 2.83 -- 38 405 0.3183 0.4047 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.43
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.934
c_bond_d 0.0014
c_angle_deg 1.68
c_dihedral_angle_d 17.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.57
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.56
Luzzati Sigma A (R-Free Set) 0.16
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3796
Nucleic Acid Atoms 0
Heterogen Atoms 46
Solvent Atoms 30

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
MLPHARE Structure Solution
CNS 0.3A Structure Refinement
Software
Software Name Purpose
CNS version: 0.3A refinement
MLPHARE model building