Crystal structure of the GluA2 ligand-binding domain (S1S2J-L483Y-N754S) in complex with glutamate and BPAM-97 at 1.95 A resolution
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3H6T | PDB ENTRY 3H6T |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 279 | 15.2% PEG4000, 0.3 M lithium sulfate and 0.1 M phosphate-citrate., pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.42 | 49.18 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 98.86 | α = 90 |
| b = 121.3 | β = 90 |
| c = 47.31 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 99 | CCD | MAR CCD 165 mm | 2009-09-17 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | MAX II BEAMLINE I911-5 | 0.908 | MAX II | I911-5 |
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 | 1.95 | 24.26 | 99.9 | 0.109 | 13.2 | 8 | 42368 | 17.99 | |||||||||||
| 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 | 1.95 | 2.06 | 99.9 | 0.377 | 1.9 | 8.1 | 6130 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | PDB ENTRY 3H6T | 1.95 | 24.217 | 1.91 | 42311 | 2136 | 99.92 | 0.1721 | 0.1698 | 0.17 | 0.2154 | 0.21 | RANDOM | 22.2 | |||
| 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] | |
| 1.6101 | -1.5977 | -0.0124 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 12.513 |
| f_angle_d | 1.015 |
| f_chiral_restr | 0.068 |
| f_bond_d | 0.007 |
| f_plane_restr | 0.004 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4063 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 518 |
| Heterogen Atoms | 136 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHASER | phasing |
| PHENIX | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |














