2CXG
CYCLODEXTRIN GLYCOSYLTRANSFERASE COMPLEXED TO THE INHIBITOR ACARBOSE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1CDG |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 7.55 | PROTEIN WAS CRYSTALLIZED FROM OTHER LIQUOR CONTAINING 60% V/V METHYL-PENTANEDIOL (MPD) 100 MM SODIUM-HEPES PH 7.55 AND 0.5% W/V MALTOSE THEN SOAKED IN MOTHER LIQUOR WITH 0.1 % ACARBOSE AND 0.5 % MALTOSE FOR 5 DAYS |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.9 | 59 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 120.887 | α = 90 |
b = 111.903 | β = 90 |
c = 65.748 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293 | DIFFRACTOMETER | ENRAF-NONIUS FAST | 1992-06-14 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | ELLIOTT GX-21 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 2.5 | 29 | 73.9 | 0.086 | 0.086 | 2.42 | 59552 | 14.7 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
2.5 | 2.58 | 40.3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation 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 (Depositor) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | R FREE | 1CDG | 2.5 | 8 | 23325 | 22281 | 2148 | 73 | 0.187 | 0.187 | 0.182 | 0.23 | EVERY 10TH REFLECTION |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_dihedral_angle_d | 18.245 |
t_it | 1.286 |
t_angle_deg | 1.147 |
t_nbd | 0.009 |
t_gen_planes | 0.007 |
t_bond_d | 0.004 |
t_trig_c_planes | 0.004 |
t_incorr_chiral_ct | |
t_pseud_angle |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5264 |
Nucleic Acid Atoms | |
Solvent Atoms | 92 |
Heterogen Atoms | 137 |
Software
Software | |
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Software Name | Purpose |
MADNES | data collection |
BIOMOL | data reduction |
TNT | refinement |
MADNES | data reduction |
BIOMOL | data scaling |
TNT | phasing |