+Open data
-Basic information
Entry | Database: PDB / ID: 7evn | ||||||
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Title | The cryo-EM structure of the DDX42-SF3b complex | ||||||
Components |
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Keywords | SPLICING / DDX32 / SF3B1 / SF3b / U2 snRNP | ||||||
Function / homology | Function and homology information U11/U12 snRNP / B-WICH complex / splicing factor binding / U12-type spliceosomal complex / RNA splicing, via transesterification reactions / U2-type spliceosomal complex / U2-type precatalytic spliceosome / : / U2-type prespliceosome assembly / U2 snRNP ...U11/U12 snRNP / B-WICH complex / splicing factor binding / U12-type spliceosomal complex / RNA splicing, via transesterification reactions / U2-type spliceosomal complex / U2-type precatalytic spliceosome / : / U2-type prespliceosome assembly / U2 snRNP / SAGA complex / positive regulation of transcription by RNA polymerase III / U2-type prespliceosome / precatalytic spliceosome / spliceosomal complex assembly / positive regulation of transcription by RNA polymerase I / mRNA Splicing - Minor Pathway / regulation of RNA splicing / Cajal body / U2 snRNA binding / regulation of DNA repair / catalytic step 2 spliceosome / mRNA Splicing - Major Pathway / RNA splicing / stem cell differentiation / spliceosomal complex / protein localization / B-WICH complex positively regulates rRNA expression / negative regulation of protein catabolic process / mRNA splicing, via spliceosome / nuclear matrix / regulation of apoptotic process / RNA helicase activity / RNA helicase / nuclear speck / chromatin remodeling / mRNA binding / protein-containing complex binding / nucleolus / positive regulation of DNA-templated transcription / ATP hydrolysis activity / positive regulation of transcription by RNA polymerase II / DNA binding / RNA binding / zinc ion binding / nucleoplasm / ATP binding / membrane / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||
Authors | Zhang, X. / Zhan, X. / Shi, Y. | ||||||
Funding support | China, 1items
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Citation | Journal: Nat.Struct.Mol.Biol. / Year: 2024 Title: Structural insights into branch site proofreading by human spliceosome Authors: Zhang, X. / Zhan, X. / Bian, T. / Yang, F. / Li, P. / Lu, Y. / Xing, Z. / Fan, R. / Zhang, Q.C. / Shi, Y. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7evn.cif.gz | 479.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7evn.ent.gz | 363.1 KB | Display | PDB format |
PDBx/mmJSON format | 7evn.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ev/7evn ftp://data.pdbj.org/pub/pdb/validation_reports/ev/7evn | HTTPS FTP |
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-Related structure data
Related structure data | 31330MC 7evoC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Splicing factor 3B subunit ... , 3 types, 3 molecules BCA
#1: Protein | Mass: 10149.369 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SF3B5, SF3B10 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q9BWJ5 |
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#2: Protein | Mass: 98747.867 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SF3B1, SAP155 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: O75533 |
#4: Protein | Mass: 138949.188 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SF3B3, KIAA0017, SAP130 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q15393 |
-Protein , 2 types, 2 molecules DE
#3: Protein | Mass: 12427.524 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PHF5A / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q7RTV0 |
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#5: Protein | Mass: 105261.625 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDX42 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q86XP3, RNA helicase |
-Non-polymers , 1 types, 3 molecules
#6: Chemical |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: The DDX42-SF3b core complex / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.9 |
Specimen | Conc.: 1.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.17.1_3660: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 234800 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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