X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Batch Method
pH 4.5
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 = 27.24 α = 88.52
b = 31.87 β = 108.53
c = 34.23 γ = 111.89
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH BENT MIRROR 1996-12
Diffraction Radiation
Monochromator Protocol
SI(111) --
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
0.95 21 96.5 0.06 0.06 -- 2.0 -- 61265 -- -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)
0.95 0.97 94.9 0.273 0.273 4.7 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 0.95 21.0 -- -- 61258 -- 1870 96.5 0.1082 0.1144 -- 0.147 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.095
s_similar_adp_cmpnt 0.071
s_rigid_bond_adp_cmpnt 0.007
s_anti_bump_dis_restr 0.044
s_non_zero_chiral_vol 0.152
s_zero_chiral_vol 0.128
s_from_restr_planes 0.39
s_similar_dist 0.014
s_angle_d 0.033
s_bond_d 0.016
Coordinate Error
Parameter Value
Number Disordered Residues 15.0
Occupancy Sum Hydrogen 920.89
Occupancy Sum Non Hydrogen 1123.7
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1001
Nucleic Acid Atoms 0
Heterogen Atoms 24
Solvent Atoms 139

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