X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details BATCH METHOD WITH ENZYME AT A CONCENTRATION OF 2 MG/ML IN 100 MM SODIUM ACETATE BUFFER AT PH 4.6 (MOEWS AND BUNN, 1970). CRYSTALS LEFT TO GROW FOLLOWING SLOW ADDITION OF AMMONIUM SULPHATE TO FINAL CONCENTRATION OF 0.35 G/ML (55% SATURATION).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.58 α = 90
b = 74.51 β = 97.56
c = 42.35 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-06-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, HAMBURG BW7B

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
1.1 15.6 99.8 0.125 -- -- 3.7 -- 105807 -- -- --
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)
1.1 1.14 99.5 0.32 -- 4.8 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
OTHER 1.1 100.0 -- 0.0 105807 -- 5285 99.8 -- 0.14 -- 0.178 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.071
s_similar_adp_cmpnt 0.03
s_rigid_bond_adp_cmpnt 0.005
s_anti_bump_dis_restr 0.074
s_non_zero_chiral_vol 0.078
s_zero_chiral_vol 0.079
s_from_restr_planes 0.032
s_similar_dist 0.0
s_angle_d 0.028
s_bond_d 0.013
Coordinate Error
Parameter Value
Number Disordered Residues 25.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2462
Nucleic Acid Atoms 0
Heterogen Atoms 26
Solvent Atoms 499

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
SHELX-97 Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELX-97 model building