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- PDB-1qcu: CRYSTAL STRUCTURE OF AN 18 BASE PAIR COPY CONTROL RELATED RNA DUPLEX -
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Open data
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Basic information
Entry | Database: PDB / ID: 1qcu | ||||||
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Title | CRYSTAL STRUCTURE OF AN 18 BASE PAIR COPY CONTROL RELATED RNA DUPLEX | ||||||
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![]() | RNA / A-RNA STRUCTURE / RIBONUCLEIC ACID | ||||||
Function / homology | AMMONIUM ION / RNA / RNA (> 10)![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Klosterman, P.S. / Shah, S.A. / Steitz, T.A. | ||||||
![]() | ![]() Title: Crystal structures of two plasmid copy control related RNA duplexes: An 18 base pair duplex at 1.20 A resolution and a 19 base pair duplex at 1.55 A resolution. Authors: Klosterman, P.S. / Shah, S.A. / Steitz, T.A. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 74.1 KB | Display | ![]() |
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PDB format | ![]() | 59 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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2 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Components
#1: RNA chain | Mass: 3752.306 Da / Num. of mol.: 2 / Source method: obtained synthetically #2: RNA chain | Mass: 3312.042 Da / Num. of mol.: 2 / Source method: obtained synthetically #3: Chemical | ChemComp-NH4 / #4: Water | ChemComp-HOH / | Compound details | THE CRYSTALS EXHIBIT 36-FOLD STATIC DISORDER, SUCH THAT THERE IS ONE CONFORMATION OF THE SUGAR- ...THE CRYSTALS EXHIBIT 36-FOLD STATIC DISORDER, SUCH THAT THERE IS ONE CONFORMATI | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.4 Å3/Da / Density % sol: 49.5 % | ||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: (NH4)2SO4, SODIUM CACODYLATE, MGCL2, ROP PROTEIN, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K | ||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions |
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Crystal grow | *PLUS Temperature: 20 ℃ / Method: vapor diffusion | ||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction |
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Diffraction source |
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Detector |
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Radiation |
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Radiation wavelength |
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Reflection | Resolution: 1.2→30 Å / Num. all: 19666 / Num. obs: 18266 / % possible obs: 92.5 % / Observed criterion σ(F): -3 / Observed criterion σ(I): -3 / Redundancy: 4.2 % / Biso Wilson estimate: 21.7 Å2 / Rmerge(I) obs: 0.073 / Net I/σ(I): 31.8 | ||||||||||||||||||
Reflection shell | Resolution: 1.2→1.24 Å / Redundancy: 2.8 % / Rmerge(I) obs: 0.274 / Mean I/σ(I) obs: 5.2 / % possible all: 77.1 | ||||||||||||||||||
Reflection | *PLUS % possible obs: 93 % | ||||||||||||||||||
Reflection shell | *PLUS % possible obs: 77 % |
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Processing
Software |
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Refinement | Method to determine structure: ![]() Starting model: A-RNA Resolution: 1.2→30 Å / Num. parameters: 7977 / Num. restraintsaints: 21649 / Cross valid method: FREE R / σ(F): 0 / σ(I): 0 StereochEM target val spec case: USED THE AVERAGE OF GUA C6 O6, ADE C6 N6 BOND LENGTHS AS THE C6 O6 BOND LENGTH Stereochemistry target values: Parkinson et al. Details: ANISOTROPIC REFINEMENT REDUCED FREE R (NO CUTOFF) BY 6.5% THE MOLECULE CRYSTALLIZED IN SPACE GROUP P321. HOWEVER THE REFINEMENT WAS CARRIED OUT IN THE LOWER SPACE GROUP P3. THE COORDINATES ...Details: ANISOTROPIC REFINEMENT REDUCED FREE R (NO CUTOFF) BY 6.5% THE MOLECULE CRYSTALLIZED IN SPACE GROUP P321. HOWEVER THE REFINEMENT WAS CARRIED OUT IN THE LOWER SPACE GROUP P3. THE COORDINATES DEPOSITED ARE FOR THE SPACE GROUP P3.
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Solvent computation | Solvent model: MOEWS & KRETSINGER, J.MOL.BIOL., 91 201-228 (1973) | |||||||||||||||||||||||||||||||||
Refine analyze | Num. disordered residues: 22 / Occupancy sum hydrogen: 227 / Occupancy sum non hydrogen: 578 | |||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.2→30 Å
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Refine LS restraints |
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Software | *PLUS Name: SHELXL-97 / Classification: refinement | |||||||||||||||||||||||||||||||||
Refinement | *PLUS Rfactor all: 0.202 / Rfactor obs: 0.116 / Rfactor Rfree: 0.15 | |||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | |||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | |||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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