1FFR
CRYSTAL STRUCTURE OF CHITINASE A MUTANT Y390F COMPLEXED WITH HEXA-N-ACETYLCHITOHEXAOSE (NAG)6
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1EDQ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.2 | 291 | 0.75 M CITRATE-NA AND 20% (V/V) METHANOL, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.25 | 62 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 200.172 | α = 90 |
b = 131.921 | β = 90 |
c = 59.268 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 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 | CCD | MARRESEARCH | PAIR OF NICKEL MIRRORS | 2000-04-17 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7A | EMBL/DESY, HAMBURG | BW7A |
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 | 1.8 | 10 | 93.7 | 0.061 | 23.4 | 3.4 | 68036 | 68036 | 22 |
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 | 1.8 | 1.86 | 96.8 | 0.204 | 6.2 | 6945 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | MOLECULAR REPLACEMENT | 1EDQ | 1.8 | 10 | 68015 | 68015 | 3453 | 0.186 | 0.186 | 0.183 | 0.229 | RANDOM |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_transverse_tor | 25.9 |
p_staggered_tor | 13.6 |
p_planar_tor | 6.5 |
p_scangle_it | 2.73 |
p_mcangle_it | 1.97 |
p_scbond_it | 1.81 |
p_mcbond_it | 1.42 |
p_multtor_nbd | 0.28 |
p_xyhbond_nbd | 0.23 |
p_singtor_nbd | 0.186 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4136 |
Nucleic Acid Atoms | |
Solvent Atoms | 773 |
Heterogen Atoms | 99 |
Software
Software | |
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Software Name | Purpose |
MAR345 | data collection |
SCALEPACK | data scaling |
AMoRE | phasing |
REFMAC | refinement |