1GOI

Crystal structure of the D140N mutant of chitinase B from Serratia marcescens at 1.45 A resolution


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17100 MM HEPES, 1.25 M AMMONIUM SULPHATE, 10% GLYCEROL, pH 7.00
Crystal Properties
Matthews coefficientSolvent content
2.0941.3

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.904α = 90
b = 104.016β = 90
c = 186.524γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42000-11-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-4ESRFID14-4

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
11.451799.30.03714.73.5191634
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)
11.451.599.50.382.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1E151.4517191433192199.30.16010.2204RANDOM
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
2472798885.5
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.088
s_non_zero_chiral_vol0.035
s_anti_bump_dis_restr0.035
s_angle_d0.034
s_zero_chiral_vol0.029
s_similar_adp_cmpnt0.028
s_from_restr_planes0.0261
s_bond_d0.014
s_rigid_bond_adp_cmpnt0.003
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7793
Nucleic Acid Atoms
Solvent Atoms1000
Heterogen Atoms92

Software

Software
Software NamePurpose
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling