X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.8
Temperature 277.15
Details peg 400, magnesium chloride, hepes, dtt, pH 7.8, VAPOR DIFFUSION, SITTING DROP, temperature 277.15K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 116.07 α = 90
b = 86.02 β = 90
c = 80.24 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2001-11-19
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL11-1 0.98 SSRL BL11-1

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
1.55 50 97.3 -- 0.054 -- 3.8 -- 125315 -- -3.0 --
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)
1.5 1.55 95.6 -- 0.73 1.6 -- 12180

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 1.55 50.0 0.0 0.0 108727 103259 5468 93.0 -- -- 0.2036 0.2124 random
Temperature Factor Modeling
Temperature Factor Value
Anisotropic B[1][1] 0.739
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.181
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.442
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.79
c_dihedral_angle_d 22.9
c_bond_d 0.005
c_angle_deg 1.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 50.0
Luzzati ESD (R-Free Set) 0.19
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5552
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 586

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE, ARP/WARP Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
cns version: 1.1 refinement
SOLVE&ARP/WARP model building
SCALEPACK data reduction
HKL-2000 data collection