Crystal structure of NAD-dependent malic enzyme (TM0542) from Thermotoga maritima at 2.61 A resolution
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION,SITTING DROP,NANODROP | 277 | 0.025M Citric Acid, 0.075M Citrate_Na3, 6.00% NP_Peg 6000 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K | |
| 2 | VAPOR DIFFUSION,SITTING DROP,NANODROP | 277 | 0.025M Citric Acid, 0.075M Citrate_Na3, 6.00% NP_Peg 6000 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.85 | 56.87 |
| 3.12 | 60.31 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 143.963 | α = 90 |
| b = 143.963 | β = 90 |
| c = 163.428 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 65 |
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 | 2003-07-25 | M | SINGLE WAVELENGTH | ||||||
| 2 | 1 | x-ray | 100 | M | MAD | |||||||||
| 1,2 | 1 | |||||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ALS BEAMLINE 8.3.1 | ALS | 8.3.1 | |
| 2 | SYNCHROTRON | ALS BEAMLINE 8.3.1 | 1.019943, 0.979762, 0.979619 | ALS | 8.3.1 |
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 | 2.6 | 47.12 | 98.84 | 0.054 | 16.77 | 3.26 | 57871 | 74.19 | |||||||||||
| 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 | 2.6 | 2.69 | 96.26 | 0.551 | 1.84 | 2.86 | 5591 | ||||||||||||
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 (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | MAD | THROUGHOUT | 2.61 | 47.12 | 55267 | 2333 | 98.53 | 0.1938 | 0.19189 | 0.2 | 0.23929 | 0.23 | RANDOM | 61.902 | |||||
| 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] | |
| 1.1 | 0.55 | 1.1 | -1.64 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 38.556 |
| r_dihedral_angle_3_deg | 17.945 |
| r_dihedral_angle_4_deg | 17.668 |
| r_scangle_it | 8.133 |
| r_dihedral_angle_1_deg | 6.65 |
| r_scbond_it | 5.8 |
| r_mcangle_it | 2.64 |
| r_angle_refined_deg | 1.658 |
| r_mcbond_it | 1.521 |
| r_angle_other_deg | 0.933 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 11096 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 44 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| MOSFLM | data reduction |
| SCALEPACK | data scaling |
| SOLVE | phasing |
| SHARP | phasing |
| REFMAC | refinement |














