3K34
Human carbonic anhydrase II with a sulfonamide inhibitor
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 2CBA | PDB ENTRY 2CBA |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 7.5 | 298 | 3M ammonium sulfate, 50 mM tris-Cl 2mM pHMB , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.06 | 40.35 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 42.045 | α = 90 |
b = 41.269 | β = 104.23 |
c = 71.821 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | IMAGE PLATE | MAR scanner 345 mm plate | 1999-07-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-1 | SSRL | BL9-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 0.9 | 20 | 98 | 0.069 | 17 | 172463 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 0.9 | 0.92 | 96 | 0.44 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 2CBA | 0.9 | 18 | 172451 | 163837 | 8614 | 0.141 | 0.16 | RANDOM |
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 | |
---|---|
Key | Refinement Restraint Deviation |
s_angle_d | 0.052 |
s_bond_d | 0.033 |
s_similar_dist | |
s_from_restr_planes | |
s_zero_chiral_vol | |
s_non_zero_chiral_vol | |
s_anti_bump_dis_restr | |
s_rigid_bond_adp_cmpnt | |
s_similar_adp_cmpnt | |
s_approx_iso_adps |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2059 |
Nucleic Acid Atoms | |
Solvent Atoms | 249 |
Heterogen Atoms | 50 |
Software
Software | |
---|---|
Software Name | Purpose |
HKL-2000 | data collection |
SHELXL-97 | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |