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- PDB-4pkd: U1-70k in complex with U1 snRNA stem-loops 1 and U1-A RRM in comp... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4pkd | ||||||
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Title | U1-70k in complex with U1 snRNA stem-loops 1 and U1-A RRM in complex with stem-loop 2 | ||||||
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![]() | GENE REGULATION / U1-70k / U1 snRNP / Pre-mRNA splicing / Spliceosome | ||||||
Function / homology | ![]() negative regulation of protein refolding / regulation of ATP-dependent activity / negative regulation of chaperone-mediated autophagy / positive regulation of mRNA splicing, via spliceosome / U1 snRNP / U2-type prespliceosome / precatalytic spliceosome / regulation of RNA splicing / U1 snRNA binding / mRNA Splicing - Major Pathway ...negative regulation of protein refolding / regulation of ATP-dependent activity / negative regulation of chaperone-mediated autophagy / positive regulation of mRNA splicing, via spliceosome / U1 snRNP / U2-type prespliceosome / precatalytic spliceosome / regulation of RNA splicing / U1 snRNA binding / mRNA Splicing - Major Pathway / spliceosomal complex / mRNA splicing, via spliceosome / nuclear speck / mRNA binding / RNA binding / nucleoplasm / identical protein binding / nucleus Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Oubridge, C. / Kondo, Y. / van Roon, A.M. / Nagai, K. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Crystal structure of human U1 snRNP, a small nuclear ribonucleoprotein particle, reveals the mechanism of 5' splice site recognition. Authors: Kondo, Y. / Oubridge, C. / van Roon, A.M. / Nagai, K. #1: ![]() Title: Crystal structure of human spliceosomal U1 snRNP at 5.5 A resolution. Authors: Pomeranz Krummel, D.A. / Oubridge, C. / Leung, A.K. / Li, J. / Nagai, K. #2: ![]() Title: Crystal structure at 1.92 A resolution of the RNA-binding domain of the U1A spliceosomal protein complexed with an RNA hairpin. Authors: Oubridge, C. / Ito, N. / Evans, P.R. / Teo, C.H. / Nagai, K. #3: ![]() Title: Functional organization of the Sm core in the crystal structure of human U1 snRNP. Authors: Weber, G. / Trowitzsch, S. / Kastner, B. / Luhrmann, R. / Wahl, M.C. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 103.2 KB | Display | ![]() |
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PDB format | ![]() | 73.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 474.3 KB | Display | ![]() |
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Full document | ![]() | 481 KB | Display | |
Data in XML | ![]() | 14.5 KB | Display | |
Data in CIF | ![]() | 20.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4pjoC ![]() 1urnS S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: RNA chain | Mass: 17786.424 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: See compound details. / Source: (synth.) ![]() | ||||
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#2: Protein | Mass: 32183.576 Da / Num. of mol.: 1 / Mutation: A2G Source method: isolated from a genetically manipulated source Details: Both this protein and U1-70k are expressed together as a fusion protein. The C-terminus of U1-A and the linker peptide are disordered in the structure. The two proteins have been given ...Details: Both this protein and U1-70k are expressed together as a fusion protein. The C-terminus of U1-A and the linker peptide are disordered in the structure. The two proteins have been given separate chain identifiers so that their normal numbering is preserved., U1-A and this protein are expressed together as a fusion protein. The C-terminus of U1-A and the linker peptide are disordered in the structure. The two proteins have been given separate chain identifiers so that their normal numbering is preserved. Source: (gene. exp.) ![]() ![]() ![]() Gene: SNRPA, SNRNP70, RNPU1Z, RPU1, SNRP70, U1AP1 / Plasmid: pET13 Details (production host): Expresses U1-A/U1-70k fusion protein Production host: ![]() ![]() | ||||
#3: Chemical | #4: Chemical | ChemComp-IMD / | #5: Water | ChemComp-HOH / | |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.34 Å3/Da / Density % sol: 53 % / Description: Six-sided plates |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 4.2 Details: 40% MPD, 0.15 M sodium chloride, 0.1 M sodium acetate, pH 4.2 |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: PSI PILATUS 6M / Detector: PIXEL / Date: Oct 22, 2011 |
Radiation | Monochromator: Double-crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.0332 Å / Relative weight: 1 |
Reflection | Resolution: 2.5→87.54 Å / Num. all: 16115 / Num. obs: 15967 / % possible obs: 99.1 % / Redundancy: 3.7 % / Rmerge(I) obs: 0.076 / Rsym value: 0.047 / Net I/σ(I): 11 |
Reflection shell | Resolution: 2.5→2.64 Å / Redundancy: 3.7 % / Rmerge(I) obs: 0.35 / Mean I/σ(I) obs: 3.2 / % possible all: 99.4 |
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Processing
Software | Name: REFMAC / Version: 5.8.0071 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Refinement | Method to determine structure: ![]() Starting model: 1URN Resolution: 2.5→87 Å / Cor.coef. Fo:Fc: 0.947 / Cor.coef. Fo:Fc free: 0.893 / SU B: 10.404 / SU ML: 0.232 / Cross valid method: THROUGHOUT / ESU R: 0.618 / ESU R Free: 0.305 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 50.252 Å2
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Refinement step | Cycle: 1 / Resolution: 2.5→87 Å
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Refine LS restraints |
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