Lipidic cubic phase crystal structure of the photosynthetic reaction centre from Rhodobacter sphaeroides
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 1AIJ | PDB ENTRY 1AIJ | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | LIPIDIC CUBIC PHASE | 7.5 | 60% MONOOLEIN/40% 25 MG/ML PROT. +(4:1)18% JEFFAMINE M-600, 1M HEPES PH7.5, 0.7M AMM.SULF., pH 7.50 | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.8 | 55.6 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 99.973 | α = 90 | 
| b = 99.973 | β = 90 | 
| c = 237.192 | γ = 90 | 
| Symmetry | |
|---|---|
| Space Group | P 42 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 | ADSC CCD | GE MIRROR | 2002-03-05 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-2 | ESRF | ID14-2 | |
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 | 2.35 | 42.3 | 96.3 | 0.115 | 12 | 7.2 | 49134 | 32.8 | |||||||||||
| 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 | 2.35 | 2.43 | 97.6 | 0.668 | 2.8 | 7 | |||||||||||||
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 1AIJ | 2.35 | 42.25 | 48948 | 2451 | 95.8 | 0.214 | 0.214 | 0.2 | 0.244 | 0.23 | RANDOM | 40.3 | ||||
| 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] | |
| 2.18 | 2.18 | -4.35 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| c_dihedral_angle_d | 20.6 | 
| c_scangle_it | 2.58 | 
| c_improper_angle_d | 2.27 | 
| c_scbond_it | 1.85 | 
| c_mcangle_it | 1.82 | 
| c_angle_deg | 1.2 | 
| c_mcbond_it | 1.15 | 
| c_bond_d | 0.007 | 
| c_bond_d_na | |
| c_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 6440 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 136 | 
| Heterogen Atoms | 475 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| CNS | refinement | 
| MOSFLM | data reduction | 
| SCALA | data scaling | 
| AMoRE | phasing | 














