2NNG

Structure of inhibitor binding to Carbonic Anhydrase II


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION7.7277(NH4)2SO4, Tris, pH 7.7, vapor diffusion, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.0840.78

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.289α = 90
b = 41.44β = 104.56
c = 71.975γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152005-11-10SINGLE WAVELENGTH
21x-ray
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.21.1ALS5.0.2
2

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
1,21.27098.80.07612.43.37465512.58
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)
1,21.21.2495.30.272.572.27174

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 DIFFRACTIONAB INITIOFREE R1.270731361502960.130.1320.165RANDOM19.83
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
s_approx_iso_adps0.092
s_zero_chiral_vol0.08
s_non_zero_chiral_vol0.079
s_anti_bump_dis_restr0.075
s_similar_adp_cmpnt0.053
s_angle_d0.03
s_from_restr_planes0.03
s_bond_d0.013
s_rigid_bond_adp_cmpnt0.004
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2060
Nucleic Acid Atoms
Solvent Atoms273
Heterogen Atoms20

Software

Software
Software NamePurpose
SHELXL-97refinement
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing
DENZOdata reduction