4WBC
2.13 A STRUCTURE OF A KUNITZ-TYPE WINGED BEAN CHYMOTRYPSIN INHIBITOR PROTEIN
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 5.4 | PROTEIN WAS CRYSTALLIZED BY HANGING DROP VAPOUR DIFFUSION FROM 25% AMM. SULPHATE IN TRIS-HCL, 10MM NA ACETATE, 400 MM NACL AT PH 5.4 AGAINST 25% AMM. SULPHATE,60MM NA ACETATE AT 4 DEG. C. CRYSTALS WERE THEN TRANSFERED TO 25% GLYCEROL (CRYOPROTECTANT) IN 25% AMM. SULPHATE, 10MM NA ACETATE BUFFER AT PH 5.4, BEFORE FLASH COOLING. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.69 | 54 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 60.84 | α = 90 |
b = 60.84 | β = 90 |
c = 207.91 | γ = 120 |
Symmetry | |
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Space Group | P 61 2 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 90 | IMAGE PLATE | MARRESEARCH | DOUBLE FOCUSSING MIRRORS | 1997-05-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
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 | 2.138 | 15 | 96.3 | 0.069 | 13 | 12963 | 30.5 |
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 | 2.13 | 2.18 | 64.5 | 0.236 |
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 | OTHER | THROUGHOUT | 2.138 | 9 | 11100 | 93.6 | 0.199 | 0.257 | RANDOM | 32.7 |
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 | 37.6 |
p_staggered_tor | 18.2 |
p_scangle_it | 6.28 |
p_mcangle_it | 5.33 |
p_planar_tor | 4.5 |
p_scbond_it | 4.47 |
p_mcbond_it | 3.93 |
p_multtor_nbd | 0.258 |
p_singtor_nbd | 0.19 |
p_xyhbond_nbd | 0.167 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1401 |
Nucleic Acid Atoms | |
Solvent Atoms | 176 |
Heterogen Atoms | 25 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
REFMAC | refinement |