X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.4
Temperature 291.0
Details PROTEIN WAS CRYSTALLIZED BY VAPOR DIFFUSION IN HANGING DROPS AT 291 K. SOLUTION CONTAINING 10MG/ML PROTEIN, 10 MM TRIS/HCL (PH 7.4) AND 150 MM NACL WAS MIXED WITH SAME VOLUME OF RESERVOIR SOLUTION, CONTAINING 100 MM NA-ACETATE (PH 5.0 - 5.4) AND 10 - 13 % PEG 6000, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 132.63 α = 90
b = 132.63 β = 90
c = 192.06 γ = 90
Symmetry
Space Group I 4 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1996-03
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.5 -- SRS PX9.5

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
2.1 30 96.1 -- 0.055 -- 6.2 -- 49794 -- -3.0 34.97
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)
2.1 2.2 98.0 -- 0.35 4.3 3.5 --

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
MIRAS 2.1 30.0 -- 0.5 -- 49794 2463 98.6 -- 0.248 0.232 0.273 SHELLS
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 43.1
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.013
p_angle_d 1.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3580
Nucleic Acid Atoms 0
Heterogen Atoms 29
Solvent Atoms 176

Software

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