1EIB

CRYSTAL STRUCTURE OF CHITINASE A MUTANT D313A COMPLEXED WITH OCTA-N-ACETYLCHITOOCTAOSE (NAG)8.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.22910.75 M CITRATE-NA PH 7.2 AND 20% (V/V) METHANOL , VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthew coefficientSolvent content
3.261.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 201.602α = 90
b = 132.171β = 90
c = 59.529γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHRh coated pre-mirror and segmented, bent mirror1999-04-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7BEMBL/DESY, HamburgBW7B

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
11.81097.70.03424.43.7718557185520.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.81.86990.1477.73.47198

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENT1edq1.8107182171821361297.70.180.180.1780.217RANDOM26
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_tor24.7
p_staggered_tor12.6
p_planar_tor6.6
p_scangle_it2.65
p_mcangle_it1.9
p_scbond_it1.81
p_mcbond_it1.34
p_multtor_nbd0.246
p_xyhbond_nbd0.225
p_singtor_nbd0.169
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor24.7
p_staggered_tor12.6
p_planar_tor6.6
p_scangle_it2.65
p_mcangle_it1.9
p_scbond_it1.81
p_mcbond_it1.34
p_multtor_nbd0.246
p_xyhbond_nbd0.225
p_singtor_nbd0.169
p_chiral_restr0.12
p_planar_d0.035
p_angle_d0.026
p_bond_d0.012
p_plane_restr0.011
p_hb_or_metal_coord
p_xhyhbond_nbd
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4134
Nucleic Acid Atoms
Solvent Atoms863
Heterogen Atoms113

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement