1ZGF

carbonic anhydrase II in complex with trichloromethiazide as sulfonamide inhibitor


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1soaking8277ammonium sulfate, sodium chloride, p-chloromercuribenzoic acid, tris hcl, pH 8.0, soaking, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
1.845

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.39α = 90
b = 41.53β = 104.6
c = 72.74γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray103IMAGE PLATERIGAKU RAXIS IVmirrors2004-12-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
11.752097.30.1078.52.22426824268
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.751.7894.70.38822.21184

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONFOURIER SYNTHESISFREE R1.751023323233231127940.16950.16950.16830.228RANDOM
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
119822238
RMS Deviations
KeyRefinement Restraint Deviation
s_similar_adp_cmpnt0.073
s_non_zero_chiral_vol0.042
s_zero_chiral_vol0.039
s_from_restr_planes0.0275
s_angle_d0.023
s_anti_bump_dis_restr0.011
s_bond_d0.007
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2037
Nucleic Acid Atoms
Solvent Atoms173
Heterogen Atoms32

Software

Software
Software NamePurpose
SHELXmodel building
SHELXL-97refinement
HKL-2000data scaling
CNSphasing