X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Batch Method
pH 4.6
Details BATCH METHOD USED. 1% PROTEIN SOLUTION IN 100MM SODIUM ACETATE PH 4.5-4.6. SODIUM NITRATE ADDED TO A CONCENTRATION OF 20MGS/ML. CRYSTALS GROWN AT ROOM TEMPERATURE., batch method

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 26.65 α = 88.3
b = 30.8 β = 107.4
c = 33.63 γ = 112.2
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH SEGMENTED MIRROR 1994-12
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, HAMBURG X11

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
0.92 25 90.1 0.028 0.028 -- 2.0 -- 58373 -- 3.0 --
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)
0.93 0.94 78.0 0.17 0.17 4.9 2.0 --

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
STRUCTURE KNOWN 0.925 20.0 -- 0.0 58367 -- 1776 90.1 0.0925 0.093 -- 0.1136 --
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.087
s_similar_adp_cmpnt 0.029
s_rigid_bond_adp_cmpnt 0.006
s_anti_bump_dis_restr 0.043
s_non_zero_chiral_vol 0.173
s_zero_chiral_vol 0.156
s_from_restr_planes 0.426
s_similar_dist 0.025
s_angle_d 0.044
s_bond_d 0.021
Coordinate Error
Parameter Value
Number Disordered Residues 28.0
Occupancy Sum Hydrogen 923.71
Occupancy Sum Non Hydrogen 1230.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1001
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 245

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELXL-96 Structure Solution
SHELXL-96 Structure Refinement
Software
Software Name Purpose
SHELXL-96 refinement
SHELXL-96 model building
SCALEPACK data reduction
DENZO data collection