Joint Xray/Neutron structure of Macrophage Migration Inhibitory Factor (MIF) Bound to 4-hydroxyphenylpyruvate at room temperature
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3IJJ | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.4 | 295 | Protein: 1 mM MIF, 10 mM deuterated HPP, 20 mM NaCl in 20 mM Tris (pH 7.4) mixed 1:1 with reservoir containing 2M (NH4)2SO4, 1% isopropanol in 100 mM Tris (pH 7.4). |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.86 | 56.95 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 68.613 | α = 90 |
| b = 69.231 | β = 90 |
| c = 89.185 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 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 | 293 | PIXEL | DECTRIS EIGER R 4M | 2017-07-10 | M | SINGLE WAVELENGTH | ||||||
| 2 | 1 | neutron | 293 | IMAGE PLATE | MAATEL IMAGINE | 2017-06-12 | L | LAUE | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54148 | ||
| 2 | NUCLEAR REACTOR | ORNL High Flux Isotope Reactor BEAMLINE CG4D | 2.8-4.5 | ORNL High Flux Isotope Reactor | CG4D |
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 | 1.75 | 54.69 | 100 | 0.086 | 0.101 | 0.044 | 0.988 | 10.4 | 4.7 | 43601 | 22.02 | ||||||||
| 2 | 2.5 | 17.62 | 80 | 0.251 | 0.269 | 0.092 | 0.948 | 5.7 | 5.9 | 11735 | 15.03 | ||||||||
| 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 | 1.75 | 1.78 | 0.586 | 0.649 | 0.31 | 0.77 | 2.6 | 4.6 | |||||||||||
| 2 | 2.5 | 2.59 | 0.349 | 0.398 | 0.181 | 0.679 | 2.2 | 3.4 | |||||||||||
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 | FOURIER SYNTHESIS | 1.75 | 54.69 | 1.36 | 43541 | 2136 | 100 | 0.1553 | 0.154 | 0.1555 | 0.1805 | 0.1832 | 22.55 | ||||||
| NEUTRON DIFFRACTION | FOURIER SYNTHESIS | 2.53 | 17.62 | 11721 | 579 | 79.73 | 0.2214 | 0.2189 | 0.2705 | 22.55 | |||||||||
| 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 | 20.4063 |
| f_dihedral_angle_d | 20.4063 |
| f_angle_d | 1.5703 |
| f_angle_d | 1.5703 |
| f_bond_d | 0.0976 |
| f_bond_d | 0.0976 |
| f_chiral_restr | 0.0794 |
| f_chiral_restr | 0.0794 |
| f_plane_restr | 0.0095 |
| f_plane_restr | 0.0095 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2601 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 209 |
| Heterogen Atoms | 43 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |














