2HB0
Crystal Structure of CfaE, the Adhesive Subunit of CFA/I Fimbria of Enterotoxigenic Escherichia coli
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION | 7 | 288 | 10% PEGMME 550, 0.1M sodium HEPES, 1.4M sodium malonate, pH 7.0, VAPOR DIFFUSION, temperature 288K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 4.18 | 70.61 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 143.346 | α = 90 |
| b = 143.346 | β = 90 |
| c = 231.434 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 62 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 | MARMOSAIC 300 mm CCD | 2005-08-10 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 22-ID | 1.00000 | APS | 22-ID |
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 | 2.08 | 50 | 74.8 | 0.082 | 63021 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | SAD | THROUGHOUT | 2.3 | 20 | 58667 | 2460 | 97.42 | 0.227 | 0.17874 | 0.17783 | 0.20076 | RANDOM | 25.447 | ||||||
| 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] | |
| 2.28 | 1.14 | 2.28 | -3.42 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_3_deg | 19.216 |
| r_scangle_it | 5.219 |
| r_dihedral_angle_1_deg | 4.127 |
| r_scbond_it | 3.381 |
| r_mcangle_it | 1.874 |
| r_angle_refined_deg | 1.519 |
| r_mcbond_it | 0.971 |
| r_symmetry_hbond_refined | 0.438 |
| r_symmetry_vdw_refined | 0.213 |
| r_chiral_restr | 0.211 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 5517 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 692 |
| Heterogen Atoms | 21 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| SOLVE | phasing |
