X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 295.0
Details PEG 3350, Tris, CaCl2, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 63.77 α = 90
b = 86.33 β = 90
c = 26.55 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 FOCUSSING MIRROR 2000-11-05
Diffraction Radiation
Monochromator Protocol
SI(111) DOUBLE CRYSTAL MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B 0.9800, 0.9163, 0.9196, 0.9199 NSLS X9B

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
1.55 30 96.8 0.027 -- -- 6.5 22232 21518 -1.0 -1.0 19.6
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)
1.55 1.6 80.2 0.11 -- 6.8 2.3 1745

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
MAD 1.55 20.0 0.0 0.0 20365 20365 1076 92.3 0.1657 0.1657 0.1599 0.23 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.009
s_non_zero_chiral_vol 0.054
s_similar_dist 0.0
s_from_restr_planes 0.0236
s_rigid_bond_adp_cmpnt 0.003
s_similar_adp_cmpnt 0.067
s_zero_chiral_vol 0.041
s_approx_iso_adps 0.079
s_angle_d 0.028
s_anti_bump_dis_restr 0.011
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.16
Luzzati Resolution Cutoff (Low) 20.0
Number Disordered Residues 4.0
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 1384.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1174
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 219

Software

Software
Software Name Purpose
SOLVE phasing
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling