1FFR

CRYSTAL STRUCTURE OF CHITINASE A MUTANT Y390F COMPLEXED WITH HEXA-N-ACETYLCHITOHEXAOSE (NAG)6


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 AND 20% (V/V) METHANOL, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K
Crystal Properties
Matthews coefficientSolvent content
3.2562

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 200.172α = 90
b = 131.921β = 90
c = 59.268γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCHPAIR OF NICKEL MIRRORS2000-04-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7AEMBL/DESY, HAMBURGBW7A

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
11.81093.70.06123.43.4680366803622
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)
11.81.8696.80.2046.26945

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 REPLACEMENT1EDQ1.810680156801534530.1860.1860.1830.229RANDOM
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_tor25.9
p_staggered_tor13.6
p_planar_tor6.5
p_scangle_it2.73
p_mcangle_it1.97
p_scbond_it1.81
p_mcbond_it1.42
p_multtor_nbd0.28
p_xyhbond_nbd0.23
p_singtor_nbd0.186
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor25.9
p_staggered_tor13.6
p_planar_tor6.5
p_scangle_it2.73
p_mcangle_it1.97
p_scbond_it1.81
p_mcbond_it1.42
p_multtor_nbd0.28
p_xyhbond_nbd0.23
p_singtor_nbd0.186
p_chiral_restr0.126
p_planar_d0.033
p_angle_d0.027
p_bond_d0.012
n_plane_restr0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4136
Nucleic Acid Atoms
Solvent Atoms773
Heterogen Atoms99

Software

Software
Software NamePurpose
MAR345data collection
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement