X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details SITTING DROP, VAPOUR DIFFUSION, 16% PEG 8000, O.2 M CALCIUM ACETATE, 0.1 M TRIS/HCL, PH = 8.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 34.22 α = 90
b = 86.86 β = 90
c = 97.66 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-10-15
Diffraction Radiation
Monochromator Protocol
GE SINGLE CRYSTAL 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
1.21 97.7 95.8 0.04 -- -- 4.9 -- 42933 -- -- --
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)
1.21 1.23 85.9 0.338 -- 2.8 3.7 --

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
DIRECT METHODS 1.21 97.7 -- 0.0 42953 -- 2158 94.8 0.1528 0.1486 -- 0.2124 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.115
s_similar_adp_cmpnt 0.06
s_rigid_bond_adp_cmpnt 0.005
s_anti_bump_dis_restr 0.043
s_non_zero_chiral_vol 0.078
s_zero_chiral_vol 0.077
s_from_restr_planes 0.0283
s_similar_dist 0.018
s_angle_d 0.034
s_bond_d 0.013
Coordinate Error
Parameter Value
Number Disordered Residues 3.0
Occupancy Sum Hydrogen 1051.0
Occupancy Sum Non Hydrogen 1329.93
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1065
Nucleic Acid Atoms 0
Heterogen Atoms 46
Solvent Atoms 223

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELXD Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELXD model building