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Yorodumi- PDB-5z56: cryo-EM structure of a human activated spliceosome (mature Bact) ... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 5z56 | ||||||||||||
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| Title | cryo-EM structure of a human activated spliceosome (mature Bact) at 5.1 angstrom. | ||||||||||||
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Keywords | SPLICING / human activated spliceosome / mature Bact / pre-mRNA splicing | ||||||||||||
| Function / homology | Function and homology informationRES complex / negative regulation of chemokine-mediated signaling pathway / U11/U12 snRNP / post-mRNA release spliceosomal complex / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / generation of catalytic spliceosome for first transesterification step / U7 snRNP / 3'-5' RNA helicase activity ...RES complex / negative regulation of chemokine-mediated signaling pathway / U11/U12 snRNP / post-mRNA release spliceosomal complex / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / generation of catalytic spliceosome for first transesterification step / U7 snRNP / 3'-5' RNA helicase activity / cis assembly of pre-catalytic spliceosome / histone pre-mRNA 3'end processing complex / nuclear histone mRNA catabolic process / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / miRNA processing / embryonic brain development / poly(A) binding / 7-methylguanosine cap hypermethylation / U12-type spliceosomal complex / U1 snRNP binding / C2H2 zinc finger domain binding / pICln-Sm protein complex / regulation of mRNA splicing, via spliceosome / U2-type catalytic step 1 spliceosome / methylosome / RNA splicing, via transesterification reactions / mRNA 3'-end processing / sno(s)RNA-containing ribonucleoprotein complex / small nuclear ribonucleoprotein complex / splicing factor binding / SMN-Sm protein complex / spliceosomal tri-snRNP complex / commitment complex / P granule / U4 snRNP / snRNP binding / U2-type precatalytic spliceosome / mRNA cis splicing, via spliceosome / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / U2-type spliceosomal complex / telomerase holoenzyme complex / Transport of Mature mRNA derived from an Intron-Containing Transcript / telomerase RNA binding / pre-mRNA binding / U1 snRNP / U2 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / RNA Polymerase II Transcription Termination / protein methylation / mRNA stabilization / U2-type prespliceosome / protein peptidyl-prolyl isomerization / K63-linked polyubiquitin modification-dependent protein binding / cyclosporin A binding / precatalytic spliceosome / ubiquitin-ubiquitin ligase activity / pattern recognition receptor activity / WD40-repeat domain binding / mRNA 3'-splice site recognition / regulation of RNA splicing / positive regulation of transcription by RNA polymerase III / mRNA Splicing - Minor Pathway / positive regulation of transcription by RNA polymerase I / spliceosomal complex assembly / Prp19 complex / negative regulation of mRNA splicing, via spliceosome / spliceosomal tri-snRNP complex assembly / U5 snRNP / U5 snRNA binding / pre-mRNA intronic binding / U2 snRNA binding / U6 snRNA binding / U4/U6 x U5 tri-snRNP complex / Cajal body / U1 snRNA binding / transcription regulator inhibitor activity / RNA processing / protein K63-linked ubiquitination / positive regulation of viral genome replication / DNA damage checkpoint signaling / spliceosomal snRNP assembly / positive regulation of protein export from nucleus / stem cell differentiation / catalytic step 2 spliceosome / spliceosomal complex / mRNA Splicing - Major Pathway / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / transcription-coupled nucleotide-excision repair / RNA splicing / regulation of DNA repair / positive regulation of RNA splicing / nuclear receptor binding / negative regulation of canonical NF-kappaB signal transduction / helicase activity / antiviral innate immune response / cellular response to xenobiotic stimulus / lipid droplet / positive regulation of neuron projection development Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) unidentified adenovirus | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.1 Å | ||||||||||||
Authors | Zhang, X. / Yan, C. / Zhan, X. / Li, L. / Lei, J. / Shi, Y. | ||||||||||||
| Funding support | China, 3items
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Citation | Journal: Cell Res / Year: 2018Title: Structure of the human activated spliceosome in three conformational states. Authors: Xiaofeng Zhang / Chuangye Yan / Xiechao Zhan / Lijia Li / Jianlin Lei / Yigong Shi / ![]() Abstract: During each cycle of pre-mRNA splicing, the pre-catalytic spliceosome (B complex) is converted into the activated spliceosome (B complex), which has a well-formed active site but cannot proceed to ...During each cycle of pre-mRNA splicing, the pre-catalytic spliceosome (B complex) is converted into the activated spliceosome (B complex), which has a well-formed active site but cannot proceed to the branching reaction. Here, we present the cryo-EM structure of the human B complex in three distinct conformational states. The EM map allows atomic modeling of nearly all protein components of the U2 small nuclear ribonucleoprotein (snRNP), including three of the SF3a complex and seven of the SF3b complex. The structure of the human B complex contains 52 proteins, U2, U5, and U6 small nuclear RNA (snRNA), and a pre-mRNA. Three distinct conformations have been captured, representing the early, mature, and late states of the human B complex. These complexes differ in the orientation of the Switch loop of Prp8, the splicing factors RNF113A and NY-CO-10, and most components of the NineTeen complex (NTC) and the NTC-related complex. Analysis of these three complexes and comparison with the B and C complexes reveal an ordered flux of components in the B-to-B and the B-to-B transitions, which ultimately prime the active site for the branching reaction. | ||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 5z56.cif.gz | 3.4 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb5z56.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 5z56.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/z5/5z56 ftp://data.pdbj.org/pub/pdb/validation_reports/z5/5z56 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 6889MC ![]() 6890C ![]() 6891C ![]() 5z57C ![]() 5z58C M: map data used to model this data 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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Components
+Protein , 18 types, 19 molecules ACbi6JLQMNPRSTUXYZx
+RNA chain , 4 types, 4 molecules BFGH
+U5 small nuclear ribonucleoprotein ... , 2 types, 2 molecules DE
+Small nuclear ribonucleoprotein ... , 6 types, 12 molecules ahcjdkfmelgn
+U2 small nuclear ribonucleoprotein ... , 2 types, 2 molecules op
+Splicing factor 3A subunit ... , 3 types, 3 molecules wuv
+Splicing factor 3B subunit ... , 6 types, 6 molecules 123457
+Pre-mRNA-processing factor ... , 2 types, 5 molecules qrstW
+Pre-mRNA-splicing factor ... , 4 types, 4 molecules KIOV
+Peptidyl-prolyl cis-trans isomerase ... , 2 types, 2 molecules zy
+Non-polymers , 4 types, 21 molecules 






+Details
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: human activated spliceosome / Type: COMPLEX / Entity ID: #1-#49 / Source: NATURAL |
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| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.9 / Details: 20 mM HEPES-KOH, 150 mM NaCl, 1.5 mM MgCl2 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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 FIELD / Alignment procedure: BASIC |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 48 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
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| CTF correction | Type: NONE | ||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 5.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 27405 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||
| Refinement | Highest resolution: 5.1 Å |
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About Yorodumi



Homo sapiens (human)
unidentified adenovirus
China, 3items
Citation
UCSF Chimera












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