Crystal structure of near-infrared fluorescent protein with an extended stokes shift, pH 4.5
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3BXA | PDB ENTRY 3BXA |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 298 | 0.1M Na-acetate, pH 4.5, 3.0M NaCl, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.2 | 61.62 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 106.05 | α = 90 |
| b = 106.05 | β = 90 |
| c = 219.526 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 61 2 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315 | 2009-09-27 | SAD | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | NSLS BEAMLINE X29A | NSLS | X29A | |
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 | 2.3 | 50 | 99.5 | 0.09 | 10.8 | 21 | 32982 | ||||||||||||
| 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 | 2.3 | 2.34 | 100 | 0.66 | 21.8 | 1604 | |||||||||||||
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 | PDB ENTRY 3BXA | 2.3 | 47.11 | 32794 | 1654 | 99.29 | 0.1899 | 0.1877 | 0.19 | 0.2321 | 0.24 | RANDOM | 40.5447 | ||||
| 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] | |
| 0.05 | 0.05 | -0.1 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.606 |
| r_dihedral_angle_4_deg | 17.528 |
| r_dihedral_angle_3_deg | 15.94 |
| r_dihedral_angle_1_deg | 6.821 |
| r_angle_refined_deg | 1.551 |
| r_chiral_restr | 0.086 |
| r_bond_refined_d | 0.008 |
| r_gen_planes_refined | 0.005 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3568 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 242 |
| Heterogen Atoms | 3 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALEPACK | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| CBASS | data collection |
| HKL-2000 | data reduction |














