X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.9
Temperature 293.0
Details 0.2 M Potassium Nitrate, 20% PEG 3350, pH 6.9, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 6.90

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 36 α = 67.2
b = 58.5 β = 92
c = 70.2 γ = 77.7
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2002-03-31
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.979321, 0.978964, 0.918370 SSRL BL9-2

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 34.9 93.7 -- 0.068 -- 3.9 -- 32670 -- -3.0 29.5
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)
1.99 2.1 88.4 -- 0.27 3.8 3.9 --

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 25.0 -- 0.0 32670 32670 1631 94.6 -- 0.195 0.195 0.23 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 2.02 -- 59 913 0.2577 0.2875 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ANISTROPIC
Mean Isotropic B 25.3
Anisotropic B[1][1] -2.522
Anisotropic B[1][2] 0.539
Anisotropic B[1][3] 5.397
Anisotropic B[2][2] 1.771
Anisotropic B[2][3] 1.869
Anisotropic B[3][3] 0.751
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 2.652
c_mcangle_it 2.192
c_scangle_it 3.972
c_bond_d 0.012
c_mcbond_it 1.483
c_angle_deg 1.38
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.26
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3851
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 383

Software

Software
Software Name Purpose
Blu-Ice data collection
MOSFLM data reduction
SCALA data scaling
CCP4 data reduction
SnB phasing
MLPHARE phasing
CCP4 model building
SOLVE phasing
CNS refinement version: 1.1
CCP4 data scaling version: (SCALA)