3B9E

Crystal structure of inactive mutant E315M chitinase A from Vibrio harveyi


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1CTNPDB ENTRY 1CTN

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.528820% (w/v) PEG 4000, 0.1M ammonium sulfate, 0.1M Tris-HCl pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K
Crystal Properties
Matthews coefficientSolvent content
2.2344.85

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 63.96α = 90
b = 83.106β = 90
c = 106.98γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV++2005-12-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU FR-E+ SUPERBRIGHT1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.724.6897.20.0710.07526.99.9615636156318.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.71.7987.20.3610.3874.57.67880

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation 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 REPLACEMENTTHROUGHOUTPDB ENTRY 1CTN1.724.686156358390311897.020.19050.19050.188980.2195RANDOM16.603
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]
0.140.22-0.36
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.338
r_dihedral_angle_3_deg12.111
r_dihedral_angle_4_deg9.99
r_dihedral_angle_1_deg5.092
r_scangle_it1.344
r_scbond_it0.947
r_angle_refined_deg0.932
r_mcangle_it0.617
r_mcbond_it0.445
r_nbtor_refined0.3
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.338
r_dihedral_angle_3_deg12.111
r_dihedral_angle_4_deg9.99
r_dihedral_angle_1_deg5.092
r_scangle_it1.344
r_scbond_it0.947
r_angle_refined_deg0.932
r_mcangle_it0.617
r_mcbond_it0.445
r_nbtor_refined0.3
r_nbd_refined0.175
r_symmetry_vdw_refined0.164
r_symmetry_hbond_refined0.1
r_xyhbond_nbd_refined0.081
r_chiral_restr0.067
r_bond_refined_d0.006
r_gen_planes_refined0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4474
Nucleic Acid Atoms
Solvent Atoms740
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
CrystalCleardata collection
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing