1O6I

Chitinase B from Serratia marcescens complexed with the catalytic intermediate mimic cyclic dipeptide CI4.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1E15PDB ENTRY 1E15

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
171.4M AMMONIUM SULPHATE 0.1M HEPES PH 7.0, 25% GLYCEROL
Crystal Properties
Matthews coefficientSolvent content
2.4647.99

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.805α = 90
b = 103.743β = 90
c = 186.283γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray113CCD2001-11-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID29ESRFID29

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
11.72097.10.04710.73.3114743221.3

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 REPLACEMENTTHROUGHOUTPDB ENTRY 1E151.719.9114670115996.60.170.170.195RANDOM27.76
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]
2.94.3-7.2
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.9
c_scbond_it2.1
c_mcangle_it2
c_angle_deg1.6
c_mcbond_it1.5
c_bond_d0.013
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.9
c_scbond_it2.1
c_mcangle_it2
c_angle_deg1.6
c_mcbond_it1.5
c_bond_d0.013
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7803
Nucleic Acid Atoms
Solvent Atoms1416
Heterogen Atoms252

Software

Software
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing