2A8Z

Structure Of A Cold-Adapted Family 8 Xylanase


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1H13PDB Entry: 1H13

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.6277PEG8000, sodium cacodylate, ammonium acetate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.856.4

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 77.779α = 90
b = 77.779β = 90
c = 149.634γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2005-02-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE X130.8034EMBL/DESY, HAMBURGX13

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
13.21293.389328337
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
3.23.2794.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation 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 REPLACEMENTTHROUGHOUTPDB Entry: 1H133.2127938793839293.560.218820.218820.216070.276RANDOM26.668
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]
4.642.324.64-6.96
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.569
r_scangle_it1.544
r_angle_refined_deg1.08
r_mcangle_it0.889
r_scbond_it0.887
r_mcbond_it0.471
r_symmetry_vdw_refined0.288
r_symmetry_hbond_refined0.257
r_nbd_refined0.219
r_xyhbond_nbd_refined0.16
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.569
r_scangle_it1.544
r_angle_refined_deg1.08
r_mcangle_it0.889
r_scbond_it0.887
r_mcbond_it0.471
r_symmetry_vdw_refined0.288
r_symmetry_hbond_refined0.257
r_nbd_refined0.219
r_xyhbond_nbd_refined0.16
r_chiral_restr0.077
r_bond_refined_d0.008
r_gen_planes_refined0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3203
Nucleic Acid Atoms
Solvent Atoms57
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing