3S77

The origin of the hydrophobic effect in the molecular recognition of arylsulfonamides by carbonic anhydrase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION7.8277100 mM Tris-Cl, 1.15 M sodium citrate, pH 7.8, vapor diffusion, temperature 277K, VAPOR DIFFUSION
Crystal Properties
Matthews coefficientSolvent content
2.0840.75

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.126α = 90
b = 41.094β = 104.32
c = 71.956γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC Quantum Q315MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X251.100NSLSX25

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
11.865096.70.0799.75.119847
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)
11.861.8979.40.5053.4814

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT1.8628.9619796100896.730.18030.17810.219RANDOM22.6719
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
r_dihedral_angle_2_deg36.252
r_dihedral_angle_4_deg21.899
r_dihedral_angle_3_deg15.145
r_dihedral_angle_1_deg7.054
r_scangle_it4.771
r_scbond_it3.214
r_angle_refined_deg2.224
r_mcangle_it2.091
r_mcbond_it1.29
r_chiral_restr0.15
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.252
r_dihedral_angle_4_deg21.899
r_dihedral_angle_3_deg15.145
r_dihedral_angle_1_deg7.054
r_scangle_it4.771
r_scbond_it3.214
r_angle_refined_deg2.224
r_mcangle_it2.091
r_mcbond_it1.29
r_chiral_restr0.15
r_bond_refined_d0.024
r_gen_planes_refined0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2044
Nucleic Acid Atoms
Solvent Atoms113
Heterogen Atoms19

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction