X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 4.0
Details 100 mM Citrate buffer pH 6.0, 26% Polyethylene glycol average molecular weight 4000, 200 mM Ammonium acetate , VAPOR DIFFUSION, HANGING DROP, temperature 4.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.22 α = 90
b = 63.05 β = 90
c = 50.16 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 -- 1996-05-24
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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 50 -- 0.053 -- -- -- 16534 n/a -- -- 5.1

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
-- 2.0 19.73 -- 0.0 12786 11597 1201 90.7 -- 0.237 0.237 0.28 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 2.0 2.13 -- 244 1849 0.237 0.311 0.02 99.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 11.1
Anisotropic B[1][1] 0.01
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.52
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.53
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 21.9
c_angle_deg 1.2
c_bond_d 0.005
c_improper_angle_d 0.55
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.08
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1486
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 193

Software

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