Comparison between the orthorhombic an tetragonal form of the heptamer sequence d(GCG(xT)GCG)/d(CGCACGC).
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3FL6 | PDB entry 3FL6 (one biological unit) |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 289 | 10%(V/V) 2-METHYL-2,4-PENTANEDIOL(MPD), 20MM COBALT HEXAMINE, 40MM POTASSIUM CACODYLATE BUFFERED AT PH=5.5, AND 80/12MM KCL/NACL, VAPOR DIFFUSION, HANGING DROP, temperature 289K |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 25.482 | α = 90 |
| b = 25.482 | β = 90 |
| c = 81.147 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 41 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 | 100 | CCD | MARMOSAIC 225 mm CCD | mirror | 2007-09-06 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X12 | 0.9537 | EMBL/DESY, HAMBURG | X12 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 3 | 18.55 | 99.6 | 0.105 | 0.105 | 10.6 | 11.4 | 681 | 681 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 3 | 3.16 | 100 | 0.174 | 0.174 | 4.5 | 12.4 | 93 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 Selection Details | Mean Isotropic B | |||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | NONE | PDB entry 3FL6 (one biological unit) | 3 | 18.15 | 678 | 678 | 98.55 | 0.22599 | 0.22599 | 0.22599 | 0.24 | NONE | 71.704 | |||||
| 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] | |
| 6.73 | 6.73 | -13.45 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_scangle_it | 3.229 |
| r_scbond_it | 2.103 |
| r_angle_refined_deg | 1.943 |
| r_chiral_restr | 0.122 |
| r_bond_refined_d | 0.012 |
| r_gen_planes_refined | 0.011 |
| r_bond_other_d | |
| r_angle_other_deg | |
| r_dihedral_angle_1_deg | |
| r_dihedral_angle_2_deg | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | |
| Nucleic Acid Atoms | 282 |
| Solvent Atoms | 9 |
| Heterogen Atoms | 7 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MAR345dtb | data collection |
| PHASER | phasing |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
