X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details PEG 6000, tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 96.71 α = 90
b = 114.25 β = 112.44
c = 108.98 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1999-04-30
Diffraction Radiation
Monochromator Protocol
SILICON 111 MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 1.797, 1.746, 1.742, 1.739, 0.98 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
2.03 48.2 93.2 0.059 -- -- 4.0 131366 131366 0.0 0.0 29.3

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 2.03 20.0 0.0 0.0 131085 131085 6562 -- -- -- 0.193 0.223 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 26.6
Anisotropic B[1][1] -8.5
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 1.8
Anisotropic B[2][2] 0.8
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.7
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.02
c_angle_deg 1.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 14735
Nucleic Acid Atoms 0
Heterogen Atoms 214
Solvent Atoms 1304

Software

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