X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 293.0
Details 30% (v/v)1,2-propanediol, 0.1 M HEPES pH 7.5, 20% (v/v)PEG-400, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.4 α = 90
b = 66.2 β = 90
c = 142.1 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 -- 2001-07-01
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.925224, 0.979148, 0.979360 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 29.7 98.2 -- 0.06 -- 6.5 -- 55037 -- -- 29.71
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 93.6 -- 0.611 2.2 2.2 --

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 1.95 20.0 -- 3.0 44557 40051 4045 97.5 -- 0.197 0.197 0.254 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 1.95 1.96 -- 57 505 0.2794 0.3168 -- 93.4
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 33.7
Anisotropic B[1][1] -10.312
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 7.782
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.53
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.52
c_scbond_it 2.498
c_mcangle_it 2.386
c_mcbond_it 1.563
c_bond_d 1.777
c_angle_deg 0.02
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4574
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 255

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SOLVE/RESOLVE Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
RESOLVE model building
SOLVE model building
CCP4 data reduction
SCALA data reduction
MOSFLM data collection