1OC7
D405N mutant of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with methyl-tetrathio-alpha-d-cellopentoside at 1.1 angstrom resolution
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1OC5 | PDB ENTRY 1OC5 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 4.6 | PROTEIN WAS CONCENTRATED TO 20 MG/ML IN WATER. CRYSTALLISATION IN 100MM MAGNESIUM ACETATE, 100MM ACETATE BUFFER AT PH 4.6. PRECIPITANT WAS 21% POLYETHYLENE GLYCOL 5000MME AND 5% DIMETHYLFORMAMIDE AS ADDITIVE.THE PROTEIN WAS INCUBATED WITH 1MM OF THE INHIBITOR PRIOR CRYSTALLISATION FOR AT LEAST 1 HOUR. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.05 | 38.8 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 57.504 | ¦Á = 90 |
b = 60.148 | ¦Â = 90 |
c = 97.207 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | IMAGE PLATE | MARRESEARCH | 1999-10-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7B | EMBL/DESY, HAMBURG | BW7B |
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 | 1.1 | 20 | 96 | 0.053 | 23.7 | 4.3 | 120133 |
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 | 1.1 | 1.13 | 91.5 | 0.242 | 5.6 | 4.3 |
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 1OC5 | 1.11 | 20 | 120318 | 6359 | 94.5 | 0.106 | 0.105 | 0.124 | RANDOM | 8.57 |
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] | |
-0.31 | 0.28 | 0.03 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.071 |
r_dihedral_angle_4_deg | 19.962 |
r_dihedral_angle_3_deg | 10.94 |
r_dihedral_angle_1_deg | 6.232 |
r_scangle_it | 3.434 |
r_scbond_it | 2.494 |
r_angle_refined_deg | 1.907 |
r_angle_other_deg | 1.861 |
r_mcangle_it | 1.822 |
r_mcbond_it | 1.269 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2839 |
Nucleic Acid Atoms | |
Solvent Atoms | 603 |
Heterogen Atoms | 98 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |