1AI4
PENICILLIN ACYLASE COMPLEXED WITH 3,4-DIHYDROXYPHENYLACETIC ACID
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | streak seeded | 7.2 | CRYSTALLISED FROM 10% PEG 8000, 50MM MOPS, PH 7.2, STREAK SEEDED. SOAKED IN 10MM 3,4-DIHYDROXYPHENYLACETIC ACID., streak seeded |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.06 | 59.5 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 52.12 | α = 100.2 |
b = 65.08 | β = 111.44 |
c = 76.3 | γ = 105.81 |
Symmetry | |
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Space Group | P 1 |
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 | 300 | IMAGE PLATE | MARRESEARCH | 1995-07-25 | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X31 | EMBL/DESY, HAMBURG | X31 |
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 | 2.35 | 19.85 | 96.5 | 0.055 | 12.3 | 2 | 33691 | 17.9 |
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 | 2.35 | 2.47 | 97.5 | 0.164 | 4.5 | 2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | ISOMORPHOUS WITH NATIVE STRUCTURE | FREE_R | 2.35 | 19.85 | 33691 | 2413 | 96.5 | 0.15 | 0.236 | BASED ON NATIVE STRUCTURE | 30.38 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_transverse_tor | 26.1 |
p_staggered_tor | 20.2 |
p_scangle_it | 9.218 |
p_scbond_it | 7.161 |
p_planar_tor | 5.2 |
p_mcangle_it | 4.435 |
p_mcbond_it | 3.365 |
p_multtor_nbd | 0.316 |
p_singtor_nbd | 0.177 |
p_xyhbond_nbd | 0.166 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6071 |
Nucleic Acid Atoms | |
Solvent Atoms | 600 |
Heterogen Atoms | 13 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
Agrovata | data scaling |
ROTAVATA | data scaling |