1QI5

MUTANT (D294N) MALTOTETRAOSE-FORMING EXO-AMYLASE IN COMPLEX WITH MALTOTETRAOSE


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1JDD 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17.5pH 7.5 THE CRYSTAL WAS SOAKED IN A SOLUTION OF 10 MG/ML MALTOPENTAOSE DURING DATA COLLECTION.
Crystal Properties
Matthews coefficientSolvent content
2.7755.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 65.72α = 90
b = 170.9β = 90
c = 46.8γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATERIGAKU RAXIS IICMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU200

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
124584.40.076313081

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONOTHER1JDD21020.185
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]
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor33.2
p_staggered_tor17.9
p_planar_tor2.4
p_scangle_it2.107
p_scbond_it1.33
p_mcangle_it1.252
p_mcbond_it0.712
p_multtor_nbd0.189
p_singtor_nbd0.186
p_xyhbond_nbd0.177
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor33.2
p_staggered_tor17.9
p_planar_tor2.4
p_scangle_it2.107
p_scbond_it1.33
p_mcangle_it1.252
p_mcbond_it0.712
p_multtor_nbd0.189
p_singtor_nbd0.186
p_xyhbond_nbd0.177
p_chiral_restr0.156
p_planar_d0.041
p_angle_d0.033
p_bond_d0.014
p_plane_restr0.012
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3297
Nucleic Acid Atoms
Solvent Atoms161
Heterogen Atoms47

Software

Software
Software NamePurpose
PHASERphasing
PROFFTrefinement