3IAN

Crystal structure of a chitinase from Lactococcus lactis subsp. lactis


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION72941.6M tri-sodium citrate dihydrate, pH 7.0, vapor diffusion, temperature 294K
Crystal Properties
Matthews coefficientSolvent content
3.0459.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 74.771α = 90
b = 74.771β = 90
c = 156.196γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2009-07-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 31-ID0.97958APS31-ID

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
11.7567.44286.30.1120.11213.811455543931320.1
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)
1.751.8451.80.4440.4442.33.93334

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUT1.75204550039189198386.130.170.1690.192RANDOM20.056
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]
0.230.23-0.46
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.859
r_dihedral_angle_4_deg20.775
r_dihedral_angle_3_deg13.737
r_dihedral_angle_1_deg5.459
r_scangle_it3.426
r_scbond_it2.24
r_mcangle_it1.54
r_angle_refined_deg1.368
r_angle_other_deg0.919
r_mcbond_it0.859
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.859
r_dihedral_angle_4_deg20.775
r_dihedral_angle_3_deg13.737
r_dihedral_angle_1_deg5.459
r_scangle_it3.426
r_scbond_it2.24
r_mcangle_it1.54
r_angle_refined_deg1.368
r_angle_other_deg0.919
r_mcbond_it0.859
r_mcbond_other0.201
r_chiral_restr0.092
r_bond_refined_d0.014
r_gen_planes_refined0.006
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2571
Nucleic Acid Atoms
Solvent Atoms258
Heterogen Atoms41

Software

Software
Software NamePurpose
SCALAdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
MAR345data collection
MOSFLMdata reduction
SHELXCDphasing
SHELXEmodel building