1WDS

The role of an inner loop in the catalytic mechanism of soybean beta-amylase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.4277ammonium sulfate, sodium acetate, 2-mercaptoethanol, EDTA, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.7455.08

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.615α = 90
b = 84.615β = 90
c = 143.109γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298IMAGE PLATEMACSCIENCE2003-09-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODEMACSCIENCE1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.389994.01121429114150110.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.3831.43273.25

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONrigid body refinementTHROUGHOUT1.64107287462116624585.20.1710.1710.2RANDOM16.1
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
2.092.341.88-3.96
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d21.9
c_scangle_it2.6
c_scbond_it1.81
c_mcangle_it1.59
c_angle_deg1.3
c_mcbond_it1.09
c_improper_angle_d0.81
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3927
Nucleic Acid Atoms
Solvent Atoms789
Heterogen Atoms76

Software

Software
Software NamePurpose
CNSrefinement
SCALEdata reduction
SCALEPACKdata scaling
CNSphasing