1OC5

D405N mutant of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with methyl-cellobiosyl-4-deoxy-4-thio-beta-D-cellobioside


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1BVWPDB ENTRY 1BVW

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17.5PROTEIN WAS CONCENTRATED TO 20 MG/ML IN WATER. CRYSTALLISATION IN 100MM MAGNESIUM ACETATE IN 100MM HEPES BUFFER AT PH 7.5. PRECIPITANT WAS 16% POLYETHYLENE GLYCOL 5000MME. THE PROTEIN WAS INCUBATED WITH 1MM OF THE INHIBITOR PRIOR CRYSTALLISATION.
Crystal Properties
Matthews coefficientSolvent content
4.0538.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.504α = 90
b = 60.148β = 90
c = 97.207γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCDTOROIDAL MIRROR1999-09-15MSINGLE 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
11.75093.90.055172.933830
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)
11.71.7688.70.1575.82.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1BVW1.75033830177394.10.1290.1270.168RANDOM9.09
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]
-0.430.210.22
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.021
r_dihedral_angle_4_deg17.508
r_dihedral_angle_3_deg11.374
r_dihedral_angle_1_deg5.279
r_scangle_it3.6
r_scbond_it2.372
r_angle_other_deg2.143
r_angle_refined_deg1.653
r_mcangle_it1.535
r_mcbond_it0.934
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.021
r_dihedral_angle_4_deg17.508
r_dihedral_angle_3_deg11.374
r_dihedral_angle_1_deg5.279
r_scangle_it3.6
r_scbond_it2.372
r_angle_other_deg2.143
r_angle_refined_deg1.653
r_mcangle_it1.535
r_mcbond_it0.934
r_nbd_other0.285
r_symmetry_vdw_other0.236
r_nbd_refined0.225
r_symmetry_vdw_refined0.167
r_symmetry_hbond_refined0.146
r_chiral_restr0.103
r_xyhbond_nbd_refined0.1
r_nbtor_other0.088
r_bond_refined_d0.014
r_gen_planes_refined0.008
r_gen_planes_other0.005
r_bond_other_d0.002
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2839
Nucleic Acid Atoms
Solvent Atoms471
Heterogen Atoms95

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing