1RP9

Crystal structure of barley alpha-amylase isozyme 1 (amy1) inactive mutant d180a in complex with acarbose


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.7290PEG 8000, ISOPROPANOL, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Crystal Properties
Matthew coefficientSolvent content
2.3647.85

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 93.73α = 90
b = 73.54β = 90
c = 61.06γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2000-12-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM30A0.9500ESRFBM30A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (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
1239.521000.0837.54.4257742577413
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
22.051000.3152.44.41891

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER DIFFERENCETHROUGHOUTPDB ENTRY 1HT6239.52257382533880.1660.1660.226RANDOM21.4
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]
0.015.87-5.88
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.6
c_scangle_it3.52
c_scbond_it2.61
c_mcangle_it2.14
c_mcbond_it1.66
c_angle_deg1.6
c_improper_angle_d0.99
c_bond_d0.013
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3132
Nucleic Acid Atoms
Solvent Atoms396
Heterogen Atoms135

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
CCP4data scaling
CNSphasing