X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details 3.15 M AMMONIUM SULFATE IN 0.05 M MES BUFFER AT PH 6.8, PROTEIN CONCENTRATION 10 MG/ML PLUS 10 MM DTT, TEMPERATURE 297 K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 28.95 α = 90
b = 40.11 β = 90
c = 48.81 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE DIP2030B MACSCIENCE MAC SCIENCE DOUBLE MIRROR 1997-07-16
Diffraction Radiation
Monochromator Protocol
0.15 MM NICKEL FILTER SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE MAC SCIENCE M06XHF22 -- -- --

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
1.45 20 98.0 0.063 -- -- 8.657 -- 10332 -- 0.0 14.4
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)
1.45 1.5 95.2 0.2 -- 8.351 6.07 --

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
OTHER 1.45 12.45 -- 0.0 -- 10307 543 97.9 -- 0.18 0.18 0.195 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 1.45 1.54 -- 61 1543 0.236 0.253 0.032 94.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.5
Anisotropic B[1][1] 0.87
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.24
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.37
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.74
c_scbond_it 3.21
c_mcangle_it 2.8
c_mcbond_it 1.94
c_improper_angle_d 0.72
c_bond_d 0.003
c_angle_deg 1.1
c_dihedral_angle_d 18.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Luzzati Sigma A (Observed) 0.06
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.16
Luzzati Sigma A (R-Free Set) 0.07
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 446
Nucleic Acid Atoms 0
Heterogen Atoms 11
Solvent Atoms 51

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
X-PLOR model building