4EMD
Crystal structure of IspE (4-diphosphocytidyl-2-C-methyl-D-erythritol kinase) from Mycobacterium abcessus, bound to CMP and SO4
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4DXL | PDB ENTRY 4DXL |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4.5 | 290 | Internal tracking number 230821D4, JCSG screen condition D4: 30% PEG8000, acetate, pH 4.5, 200 mM lithium sulfate, MyabA.00725.a.A1 PW30213 at 29.3 mg/mL in 25 mM HEPES, pH 7.0, 500 mM sodium chloride, 2 mM DTT, 0.025% sodium azide, 5% glycerol, 2 mM CDP, 2 mM ATP, 2 mM meso-erythritol, cryoprotectant: 20% ethylene glycol, VAPOR DIFFUSION, SITTING DROP, temperature 290K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.07 | 40.57 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 46.44 | α = 90 |
b = 109.93 | β = 90 |
c = 53.1 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | RIGAKU SATURN 944+ | 2012-03-29 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU FR-E SUPERBRIGHT | 1.541780 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.75 | 50 | 99.7 | 0.062 | 30.2 | 9.25 | 28202 | 28123 | -3 | 19.352 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.75 | 1.8 | 97.4 | 0.454 | 2.3 | 2.54 |
Refinement
Statistics | |||||||||||||||||||
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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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 4DXL | 1.75 | 50 | 28123 | 1424 | 99.71 | 0.161 | 0.159 | 0.204 | RANDOM | 13.579 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.13 | 0.14 | -0.27 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.134 |
r_dihedral_angle_4_deg | 20.484 |
r_dihedral_angle_3_deg | 11.427 |
r_dihedral_angle_1_deg | 6.68 |
r_angle_refined_deg | 1.53 |
r_angle_other_deg | 0.898 |
r_chiral_restr | 0.095 |
r_bond_refined_d | 0.015 |
r_gen_planes_refined | 0.008 |
r_bond_other_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2135 |
Nucleic Acid Atoms | |
Solvent Atoms | 292 |
Heterogen Atoms | 26 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
PHASER | phasing |