X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Soaking with Acarbose at 1 Mm Concentration For 24 Hours
pH 9
Temperature 298.0
Details 40% mpd, pH 9.0, soaking with acarbose at 1 mM concentration for 24 hours, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52.07 α = 90
b = 73.82 β = 90
c = 135.79 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 monochromator 2002-03-31
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 0.91 CHESS F1

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
2 26.54 96.8 0.06 0.06 -- 4.8 35031 35031 1.0 1.0 25.6
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)
2.0 2.07 3488.0 0.267 0.267 7.0 -- --

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
MOLECULAR REPLACEMENT 2.0 26.54 -- 0.0 35031 33226 1746 96.86 0.1622 0.16226 0.16011 0.20109 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.001 2.052 -- 111 2437 0.189 0.258 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.789
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
r_angle_refined_deg 1.368
r_xyhbond_nbd_refined 0.139
r_scbond_it 2.041
r_scangle_it 2.997
r_mcbond_it 0.691
r_metal_ion_refined 0.077
r_bond_refined_d 0.013
r_dihedral_angle_1_deg 6.254
r_nbd_refined 0.2
r_gen_planes_refined 0.006
r_symmetry_hbond_refined 0.142
r_chiral_restr 0.096
r_symmetry_vdw_refined 0.199
r_mcangle_it 1.265
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.175
Luzzati ESD (R-Free Set) 0.151
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3924
Nucleic Acid Atoms 0
Heterogen Atoms 199
Solvent Atoms 290

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
REFMAC refinement version: 5.1.24