X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.2
Details 7MG/ML ENZYME AND 2 - 5 % SATURATED AMMONIUM SULPHATE AS PRECIPITANT. 0.2 M TRIS-HCL USED TO BUFFER THE PH BETWEEN 8.1 AND 8.4. 15MM LEVULINIC ACID, 40UM ZINC SULPHATE AND 4MM BETA- MERCAPTOETHANOL WERE PRESENT., pH 8.2, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 126.7 α = 90
b = 126.7 β = 90
c = 141.6 γ = 90
Symmetry
Space Group I 4 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate -- 1994-03-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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 85.8 0.063 -- -- 2.5 -- 33275 -- 0.0 --
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)
2.0 2.1 70.8 0.297 -- 2.1 1.6 --

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 2.0 8.0 -- 0.0 -- 33275 -- -- -- -- 0.188 0.255 EVERY 20TH REFLECTION
RMS Deviations
Key Refinement Restraint Deviation
o_bond_d 0.016
o_angle_deg 0.032
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2479
Nucleic Acid Atoms 0
Heterogen Atoms 43
Solvent Atoms 371

Software

Software
Software Name Purpose
ALMN model building
TFFC model building version: (CCP4 SUITE)
RESTRAIN refinement
MOSFLM data reduction
CCP4 data scaling version: (AGROVATA
ROTAVATA) data scaling
CCP4 phasing version: (ALMN
TFFC) phasing