X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5
Temperature 298.0
Details 200mM Ammonium Acetate, 10% Peg4000, 100mM Acetate buffer, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.27 α = 90
b = 171.23 β = 90
c = 44.71 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV mirrors 2001-03-13
Diffraction Radiation
Monochromator Protocol
Graphite SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 1.5418 -- --

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
2.8 40 87.8 -- 0.06 -- 3.1 39863 13405 0.0 2.5 84.6
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)
2.8 2.95 58.7 0.116 0.116 4.0 2.3 2937

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
MOLECULAR REPLACEMENT 2.8 32.03 -- 0.0 14725 13354 1371 87.3 0.252 0.259 0.259 0.31 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 2.8 2.98 -- 164 1330 0.431 0.433 0.034 59.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 73.2
Anisotropic B[1][1] 11.71
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -12.07
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.36
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 20.2
c_bond_d 0.009
c_improper_angle_d 1.22
c_angle_deg 1.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.45
Luzzati Sigma A (Observed) 0.46
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.53
Luzzati Sigma A (R-Free Set) 0.56
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1994
Nucleic Acid Atoms 1060
Heterogen Atoms 0
Solvent Atoms 0

Software

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