Crystal structure of the b-carbonic anhydrase CafA of the fungal pathogen Aspergillus fumigatus
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4O1K | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 295 | 0.1 M MES (or Tris-HCl) pH 6.0-7.5 24-30% (w/v) PEG2000MME 0.2-0.4 M sodium acetate | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.72 | 28.68 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 66.921 | α = 90 |
| b = 87.953 | β = 90 |
| c = 144.717 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 2 21 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 80 | CCD | ADSC QUANTUM 270 | 2019-03-09 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | PAL/PLS BEAMLINE 7A (6B, 6C1) | 0.97934 | PAL/PLS | 7A (6B, 6C1) |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2 | 50 | 99.9 | 0.079 | 0.085 | 0.032 | 12.8 | 7.1 | 58640 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 2 | 2.07 | 100 | 0.306 | 0.33 | 0.123 | 0.975 | 7.2 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 4O1K | 2 | 33.48 | 55669 | 2919 | 99.54 | 0.1631 | 0.161 | 0.17 | 0.2046 | 0.21 | RANDOM | 29.166 | ||||
| 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] | |
| 2.53 | -0.49 | -2.04 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 30.252 |
| r_dihedral_angle_4_deg | 18.186 |
| r_dihedral_angle_3_deg | 13.264 |
| r_dihedral_angle_1_deg | 6.761 |
| r_angle_refined_deg | 1.688 |
| r_angle_other_deg | 1.433 |
| r_chiral_restr | 0.087 |
| r_bond_refined_d | 0.01 |
| r_gen_planes_refined | 0.008 |
| r_gen_planes_other | 0.002 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6427 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 522 |
| Heterogen Atoms | 56 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data scaling |
| PDB_EXTRACT | data extraction |
| HKL-2000 | data reduction |
| PHASER | phasing |














