X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Temperature 277.0
Details CRYSTALLIZED FROM 15% PEG 8000, 20% GLYCEROL, 6% MPD, 0.1 M NAHCO3, 0.1 M TRIS PH 8.0 AT 4 C, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.53 α = 90
b = 55.53 β = 90
c = 103.61 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS -- 1997-05-15
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 0.98, 1.01 NSLS X12C

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
1.9 100 99.8 0.033 0.04 -- 7.7 -- 13428 -- 0.0 25.9
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)
1.9 1.98 95.0 0.064 0.307 5.0 5.0 --

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 1.9 6.0 -- 0.0 -- 12890 1279 99.9 -- 0.229 0.229 0.284 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 1.9 2.01 -- 220 1868 0.362 0.333 0.022 99.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 35.9
Anisotropic B[1][1] 0.05
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.05
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.1
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.007
x_angle_deg 1.2
x_improper_angle_d 1.18
x_mcangle_it 2.2
x_dihedral_angle_d 21.2
x_mcbond_it 1.32
x_scbond_it 2.54
x_scangle_it 4.14
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.26
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1127
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 130

Software

Software
Software Name Purpose
SHARP phasing
X-PLOR model building version: 3.843
X-PLOR refinement version: 3.843
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing version: 3.843