1OC7

D405N mutant of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with methyl-tetrathio-alpha-d-cellopentoside at 1.1 angstrom resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1OC5PDB ENTRY 1OC5

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.6PROTEIN WAS CONCENTRATED TO 20 MG/ML IN WATER. CRYSTALLISATION IN 100MM MAGNESIUM ACETATE, 100MM ACETATE BUFFER AT PH 4.6. PRECIPITANT WAS 21% POLYETHYLENE GLYCOL 5000MME AND 5% DIMETHYLFORMAMIDE AS ADDITIVE.THE PROTEIN WAS INCUBATED WITH 1MM OF THE INHIBITOR PRIOR CRYSTALLISATION FOR AT LEAST 1 HOUR.
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-ray100IMAGE PLATEMARRESEARCH1999-10-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7BEMBL/DESY, HAMBURGBW7B

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
11.120960.05323.74.3120133
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)
11.11.1391.50.2425.64.3

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 1OC51.1120120318635994.50.1060.1050.124RANDOM8.57
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]
-0.310.280.03
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.071
r_dihedral_angle_4_deg19.962
r_dihedral_angle_3_deg10.94
r_dihedral_angle_1_deg6.232
r_scangle_it3.434
r_scbond_it2.494
r_angle_refined_deg1.907
r_angle_other_deg1.861
r_mcangle_it1.822
r_mcbond_it1.269
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.071
r_dihedral_angle_4_deg19.962
r_dihedral_angle_3_deg10.94
r_dihedral_angle_1_deg6.232
r_scangle_it3.434
r_scbond_it2.494
r_angle_refined_deg1.907
r_angle_other_deg1.861
r_mcangle_it1.822
r_mcbond_it1.269
r_nbd_other0.274
r_symmetry_vdw_other0.253
r_nbd_refined0.234
r_symmetry_vdw_refined0.163
r_symmetry_hbond_refined0.139
r_xyhbond_nbd_refined0.129
r_chiral_restr0.122
r_nbtor_other0.085
r_bond_refined_d0.017
r_gen_planes_refined0.011
r_gen_planes_other0.004
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 Atoms603
Heterogen Atoms98

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling