X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details 8-10% PEG8000, 0.2 M KCL, 0.1 M 2 ACETATE, PH5.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.74 α = 90
b = 122.3 β = 107.95
c = 115.84 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
IMAGE PLATE MARRESEARCH -- 1996-01-26
Diffraction Radiation
Monochromator Protocol
-- --
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
2.8 15 76.6 0.078 0.078 -- 3.1 -- 37321 -- 1.0 --
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)
2.8 2.9 51.1 0.263 0.263 -- -- --

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 AND MAD PHASING 2.8 15.0 -- 2.0 -- 35885 3584 73.5 -- 0.243 0.243 0.309 --
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 2.9 -- 260 2659 0.309 0.369 -- 48.2
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 26.59
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.5
x_scbond_it 2.0
x_mcangle_it 2.0
x_mcbond_it 1.5
x_bond_d 0.006
x_angle_deg 1.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.38
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 13688
Nucleic Acid Atoms 0
Heterogen Atoms 196
Solvent Atoms 0

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE, X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building
AMORE model building
SCALEPACK data reduction
DENZO data collection