3S74

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
Crystal Properties
Matthews coefficientSolvent content
2.0941.08

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.22α = 90
b = 41.21β = 104.61
c = 72.086γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315MSINGLE 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
11.45087.60.05216.96.141672
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)
11.41.42420.4675.1997

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 REPLACEMENTTHROUGHOUT1.431.9241617210587.50.16710.16520.2032RANDOM14.7231
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_deg34.78
r_dihedral_angle_4_deg23.812
r_dihedral_angle_3_deg14.014
r_dihedral_angle_1_deg6.917
r_scangle_it4.929
r_scbond_it3.381
r_angle_refined_deg2.566
r_mcangle_it2.424
r_mcbond_it1.529
r_chiral_restr0.166
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.78
r_dihedral_angle_4_deg23.812
r_dihedral_angle_3_deg14.014
r_dihedral_angle_1_deg6.917
r_scangle_it4.929
r_scbond_it3.381
r_angle_refined_deg2.566
r_mcangle_it2.424
r_mcbond_it1.529
r_chiral_restr0.166
r_bond_refined_d0.028
r_gen_planes_refined0.015
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2040
Nucleic Acid Atoms
Solvent Atoms234
Heterogen Atoms27

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction