X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details 20% PEG 3350, 0.2M LICL2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.92 α = 90
b = 58.65 β = 102.15
c = 57.42 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 90
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 -- 2002-11-22
Diffraction Radiation
Monochromator Protocol
SI MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
1.68 20 100.0 0.114 -- -- 7.58 -- 33226 -- -3.0 22.0
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)
1.68 1.73 99.9 0.114 -- -- -- --

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 1.68 20.0 -- 0.0 -- 31194 1675 98.8 -- 0.145 0.145 0.213 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 1.68 1.72 -- 148 2271 0.111 0.26 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 14.014
Anisotropic B[1][1] -0.28
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.13
Anisotropic B[2][2] -0.07
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.41
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 6.268
c_scbond_it 4.405
c_mcangle_it 2.681
c_mcbond_it 1.825
c_bond_d 0.023
c_angle_deg 1.905
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.176
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.11
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2423
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 409

Software

Computing
Computing Package Purpose
CBASS Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE/RESOLVE Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.1.19 refinement