1NH6

Structure of S. marcescens chitinase A, E315L, complex with hexasaccharide


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP72838-12% ethanol, 0.8-1.3 M NaCl, 0.1 M HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 283K
Crystal Properties
Matthews coefficientSolvent content
3.6566.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.1α = 90
b = 135.23β = 90
c = 188.07γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCH2000-05-12MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-11.00SSRLBL9-1

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
12.05300.0699.24.468175168175113.4
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)
12.052.187.30.3182.44

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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1EDQ2.0529.1661725625698.50.1970.1970.227RANDOM25.8
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]
7.48-6.51-0.96
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d25.1
c_scangle_it1.66
c_angle_deg1.3
c_scbond_it1.19
c_mcangle_it1.02
c_improper_angle_d0.76
c_mcbond_it0.59
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4138
Nucleic Acid Atoms
Solvent Atoms635
Heterogen Atoms85

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
CCP4data scaling
AMoREphasing