X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.6
Temperature 293.0
Details 19 % iso-Propanol/19 % PEG 4000; 0.095 M citrate pH 5.6, 5 % Glycerol, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 5.60

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 35.05 α = 90
b = 77.25 β = 90
c = 84.53 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2002-04-01
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.918370, 0.979224, 0.978932 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
1.8 29.86 98.6 -- 0.104 -- 8.7 -- 21717 -- -- 11.2
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)
1.8 1.85 87.1 -- 0.539 2.6 5.3 --

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 1.8 29.88 -- 0.0 21648 21648 1051 98.5 -- 0.19 0.19 0.224 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 1.8 1.83 -- 44 820 0.2228 0.243 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.5
Anisotropic B[1][1] 0.83
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.84
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.02
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 2.41
c_mcbond_it 1.41
c_mcangle_it 2.07
c_angle_deg 1.77
c_scangle_it 3.6
c_bond_d 0.011
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2097
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 199

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)
RESOLVE phasing