1BKX
A BINARY COMPLEX OF THE CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE AND ADENOSINE FURTHER DEFINES CONFORMATIONAL FLEXIBILITY
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1CTP | PDB ENTRY 1CTP |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 277 | THE RC.ADE BINARY COMPLEX CRYSTALS WERE GROWN AT 4 C BY THE HANGING-DROP VAPOR DIFFUSION METHOD. THE CRYSTALLIZATION DROPLET CONTAINED PROTEIN (0.5 MM), ADENOSINE (3 MM) AND 2-METHYL-2,4-PENTANEDIOL (MPD; 4%) IN 100 MM BICINE BUFFER AT PH 8.0. THE CRYSTALLIZATION WELL SOLUTION WAS MADE UP OF 15% MPD AND 100 MM AMMONIUM-SULFATE IN BICINE BUFFER (100 MM; PH 8.0). THE CRYSTALS GREW OVER THE COURSE OF 8-12 WEEKS TO A FINAL SIZE OF 0.2 X 0.3 X 0.5 MM3., vapor diffusion - hanging drop, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.6 | 51 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 55.85 | α = 90 |
b = 73.23 | β = 90 |
c = 98.72 | γ = 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 | 277 | AREA DETECTOR | XUONG-HAMLIN MULTIWIRE | 1994-09-13 | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.6 | 30 | 86 | 0.094 | 8.5 | 2.5 | 10720 | 45 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.6 | 2.7 | 74 | 0.2 | 1 | 1.5 |
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 (Depositor) | R-Free (Depositor) | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 1CTP | 2.6 | 10 | 10720 | 10720 | 86 | 0.219 | 0.219 | 0.205 | 0.34 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_dihedral_angle_d | 20.2 |
t_it | 12.8 |
t_angle_deg | 1.7 |
t_nbd | 0.03 |
t_bond_d | 0.02 |
t_gen_planes | 0.02 |
t_trig_c_planes | 0.01 |
t_incorr_chiral_ct | |
t_pseud_angle |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2801 |
Nucleic Acid Atoms | |
Solvent Atoms | 12 |
Heterogen Atoms | 19 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
TNT | refinement |
X-PLOR | refinement |
UCSD | data reduction |
UCSD | data scaling |
X-PLOR | phasing |