1FFQ

CRYSTAL STRUCTURE OF CHITINASE A COMPLEXED WITH ALLOSAMIDIN


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1EDQ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.22910.75 M Citrate-Na pH 7.2, 20% (v/v) Methanol, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
3.363

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 199.125α = 90
b = 131.816β = 90
c = 59.479γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray110IMAGE PLATEMARRESEARCHPAIR OF NICKEL MIRRORS1999-09-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU300

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
11.91098.60.05622.63.1607676076724.6
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)
1.91.9796.20.2494.12.75852

Refinement

Statistics
Diffraction IDStructure Solution 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 REPLACEMENT1EDQ1.9106074860748307698.60.1910.1910.1890.232RANDOM26.3
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]
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor25.2
p_staggered_tor13.2
p_planar_tor6.8
p_scangle_it2.76
p_mcangle_it2.02
p_scbond_it1.84
p_mcbond_it1.43
p_multtor_nbd0.244
p_xyhbond_nbd0.217
p_singtor_nbd0.175
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor25.2
p_staggered_tor13.2
p_planar_tor6.8
p_scangle_it2.76
p_mcangle_it2.02
p_scbond_it1.84
p_mcbond_it1.43
p_multtor_nbd0.244
p_xyhbond_nbd0.217
p_singtor_nbd0.175
p_chiral_restr0.122
p_planar_d0.033
p_angle_d0.028
n_plane_restr0.013
p_bond_d0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4137
Nucleic Acid Atoms
Solvent Atoms660
Heterogen Atoms43

Software

Software
Software NamePurpose
MAR345data collection
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement