Joint neutron and x-ray crystal structure of human carbonic anhydrase IX mimic (apo).
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4RIV | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 293 | 1.2 M sodium citrate 100 mM Tris pH 8.5 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.15 | 42.8 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 42.48 | α = 90 |
| b = 41.85 | β = 104.07 |
| c = 72.831 | 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 | neutron | 293 | IMAGE PLATE | LADI III | 2015-12-01 | L | LAUE | ||||||
| 2 | 1 | x-ray | 293 | CCD | MAR CCD 130 mm | 2014-10-28 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | NUCLEAR REACTOR | ILL BEAMLINE LADI III | 2.8 - 4.0 | ILL | LADI III |
| 2 | SYNCHROTRON | MAX II BEAMLINE I911-2 | 1.04 | MAX II | I911-2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (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 | 40 | 73.6 | 0.137 | 8.5 | 4.2 | 11763 | ||||||||||||
| 2 | 1.6 | 29 | 96.1 | 0.05 | 17.8 | 2.8 | 31781 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
| 1 | 2 | 2.11 | 0.05 | ||||||||||||||||
| 2 | 1.6 | 1.7 | 0.24 | ||||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | 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 | 1.6 | 26.993 | 1.36 | 31766 | 1585 | 96.17 | 0.1313 | 0.1297 | 0.1334 | 0.1613 | 0.1627 | |||||||
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2.033 | 28.949 | 11756 | 582 | 72.49 | 0.1872 | 0.1854 | 0.2216 | ||||||||||
| 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 |
| f_dihedral_angle_d | 20.948 |
| f_dihedral_angle_d | 20.948 |
| f_angle_d | 1.372 |
| f_angle_d | 1.372 |
| f_chiral_restr | 0.122 |
| f_chiral_restr | 0.122 |
| f_bond_d | 0.015 |
| f_bond_d | 0.015 |
| f_plane_restr | 0.006 |
| f_plane_restr | 0.006 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2052 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 199 |
| Heterogen Atoms | 1 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| LAUEGEN | data reduction |
| SCALEPACK | data scaling |














