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Yorodumi- PDB-5mqf: Cryo-EM structure of a human spliceosome activated for step 2 of ... -
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-Basic information
Entry | Database: PDB / ID: 5mqf | ||||||
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Title | Cryo-EM structure of a human spliceosome activated for step 2 of splicing (C* complex) | ||||||
Components |
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Keywords | SPLICING / Spliceosome / pre-mRNA splicing / macromolecular complex | ||||||
Function / homology | Function and homology information negative regulation of selenocysteine incorporation / regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / spliceosomal complex disassembly / cellular response to selenite ion / selenocysteine insertion sequence binding / exon-exon junction complex / snRNP binding / U2 snRNP binding / post-mRNA release spliceosomal complex / U7 snRNA binding ...negative regulation of selenocysteine incorporation / regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / spliceosomal complex disassembly / cellular response to selenite ion / selenocysteine insertion sequence binding / exon-exon junction complex / snRNP binding / U2 snRNP binding / post-mRNA release spliceosomal complex / U7 snRNA binding / histone pre-mRNA DCP binding / regulation of retinoic acid receptor signaling pathway / U7 snRNP / 3'-5' RNA helicase activity / regulation of translation at postsynapse, modulating synaptic transmission / histone pre-mRNA 3'end processing complex / generation of catalytic spliceosome for first transesterification step / negative regulation of excitatory postsynaptic potential / regulation of vitamin D receptor signaling pathway / Z-decay: degradation of maternal mRNAs by zygotically expressed factors / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / Deadenylation of mRNA / embryonic brain development / protein methylation / U12-type spliceosomal complex / methylosome / 7-methylguanosine cap hypermethylation / pre-mRNA binding / nuclear retinoic acid receptor binding / U2-type catalytic step 1 spliceosome / pICln-Sm protein complex / U1 snRNP binding / RNA splicing, via transesterification reactions / Prp19 complex / poly(A) binding / positive regulation of androgen receptor activity / spliceosomal tri-snRNP complex / small nuclear ribonucleoprotein complex / M-decay: degradation of maternal mRNAs by maternally stored factors / P granule / RNA stem-loop binding / sno(s)RNA-containing ribonucleoprotein complex / ATP-dependent activity, acting on RNA / SMN-Sm protein complex / mRNA 3'-end processing / mRNA cis splicing, via spliceosome / U2-type spliceosomal complex / telomerase RNA binding / embryonic cranial skeleton morphogenesis / telomerase holoenzyme complex / positive regulation of mRNA splicing, via spliceosome / U2-type precatalytic spliceosome / regulation of mRNA splicing, via spliceosome / C2H2 zinc finger domain binding / U2-type prespliceosome assembly / commitment complex / U2-type catalytic step 2 spliceosome / U4 snRNP / positive regulation by host of viral transcription / Transport of Mature mRNA derived from an Intron-Containing Transcript / positive regulation of vitamin D receptor signaling pathway / U2 snRNP / Notch binding / nuclear vitamin D receptor binding / RNA Polymerase II Transcription Termination / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / U1 snRNP / RUNX3 regulates NOTCH signaling / U2-type prespliceosome / NOTCH4 Intracellular Domain Regulates Transcription / K63-linked polyubiquitin modification-dependent protein binding / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / ubiquitin-ubiquitin ligase activity / exploration behavior / WD40-repeat domain binding / NOTCH3 Intracellular Domain Regulates Transcription / positive regulation of neurogenesis / lipid biosynthetic process / precatalytic spliceosome / nuclear androgen receptor binding / cyclosporin A binding / spliceosomal complex assembly / Notch-HLH transcription pathway / mRNA Splicing - Minor Pathway / Formation of paraxial mesoderm / positive regulation of transforming growth factor beta receptor signaling pathway / SMAD binding / protein K63-linked ubiquitination / mitotic G2 DNA damage checkpoint signaling / associative learning / blastocyst development / protein localization to nucleus / spliceosomal tri-snRNP complex assembly / transcription-coupled nucleotide-excision repair / gastrulation / U5 snRNA binding / positive regulation of G1/S transition of mitotic cell cycle / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / U5 snRNP Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.9 Å | ||||||
Authors | Bertram, K. / Hartmuth, K. / Kastner, B. | ||||||
Funding support | Germany, 1items
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Citation | Journal: Nature / Year: 2017 Title: Cryo-EM structure of a human spliceosome activated for step 2 of splicing. Authors: Karl Bertram / Dmitry E Agafonov / Wen-Ti Liu / Olexandr Dybkov / Cindy L Will / Klaus Hartmuth / Henning Urlaub / Berthold Kastner / Holger Stark / Reinhard Lührmann / Abstract: Spliceosome rearrangements facilitated by RNA helicase PRP16 before catalytic step two of splicing are poorly understood. Here we report a 3D cryo-electron microscopy structure of the human ...Spliceosome rearrangements facilitated by RNA helicase PRP16 before catalytic step two of splicing are poorly understood. Here we report a 3D cryo-electron microscopy structure of the human spliceosomal C complex stalled directly after PRP16 action (C*). The architecture of the catalytic U2-U6 ribonucleoprotein (RNP) core of the human C* spliceosome is very similar to that of the yeast pre-Prp16 C complex. However, in C* the branched intron region is separated from the catalytic centre by approximately 20 Å, and its position close to the U6 small nuclear RNA ACAGA box is stabilized by interactions with the PRP8 RNase H-like and PRP17 WD40 domains. RNA helicase PRP22 is located about 100 Å from the catalytic centre, suggesting that it destabilizes the spliced mRNA after step two from a distance. Comparison of the structure of the yeast C and human C* complexes reveals numerous RNP rearrangements that are likely to be facilitated by PRP16, including a large-scale movement of the U2 small nuclear RNP. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5mqf.cif.gz | 1.6 MB | Display | PDBx/mmCIF format |
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PDB format | pdb5mqf.ent.gz | 1 MB | Display | PDB format |
PDBx/mmJSON format | 5mqf.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mq/5mqf ftp://data.pdbj.org/pub/pdb/validation_reports/mq/5mqf | HTTPS FTP |
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-Related structure data
Related structure data | 3545MC 3547C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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-Components
-Protein , 14 types, 15 molecules ABCDFLOQRSUfmpq
#1: Protein | Mass: 273974.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q6P2Q9 | ||||
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#2: Protein | Mass: 109560.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q15029 | ||||
#3: Protein | Mass: 61610.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13573 | ||||
#4: Protein | Mass: 57379.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O43660 | ||||
#6: Protein | Mass: 39359.492 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q96DI7 | ||||
#9: Protein | Mass: 92406.883 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q99459 | ||||
#12: Protein | Mass: 100610.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9BZJ0 | ||||
#14: Protein | Mass: 17032.850 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P41223 | ||||
#15: Protein | Mass: 26674.447 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9P013 | ||||
#16: Protein | Mass: 300255.312 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UQ35 | ||||
#18: Protein | Mass: 173003.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O60306 | ||||
#27: Protein | Mass: 24642.131 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P14678 #30: Protein | | Mass: 46930.961 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P38919, RNA helicase #31: Protein | | Mass: 139251.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q14562, RNA helicase |
-Pre-mRNA-processing factor ... , 2 types, 5 molecules EGHIJ
#5: Protein | Mass: 65612.180 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O60508 |
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#7: Protein | Mass: 55245.547 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) References: UniProt: Q9UMS4, Ligases; Forming carbon-nitrogen bonds; Acid-amino-acid ligases (peptide synthases) |
-Pre-mRNA-splicing factor ... , 5 types, 5 molecules KMNPT
#8: Protein | Mass: 26163.420 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75934 |
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#10: Protein | Mass: 100148.711 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9HCS7 |
#11: Protein | Mass: 28780.518 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O95926 |
#13: Protein | Mass: 46959.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NW64 |
#17: Protein | Mass: 105646.578 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9HCG8 |
-Peptidyl-prolyl cis-trans ... , 2 types, 2 molecules Vo
#19: Protein | Mass: 18257.805 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9Y3C6, peptidylprolyl isomerase |
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#29: Protein | Mass: 33475.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UNP9, peptidylprolyl isomerase |
-U2 small nuclear ribonucleoprotein ... , 2 types, 2 molecules WX
#20: Protein | Mass: 28484.592 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P09661 |
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#21: Protein | Mass: 25524.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08579 |
-Small nuclear ribonucleoprotein ... , 6 types, 12 molecules ahbicjdkelgn
#22: Protein | Mass: 13551.928 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62316 #23: Protein | Mass: 9734.171 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62306 #24: Protein | Mass: 10817.601 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62304 #25: Protein | Mass: 8508.084 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62308 #26: Protein | Mass: 13940.308 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62318 #28: Protein | Mass: 13310.653 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62314 |
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-RNA chain , 2 types, 3 molecules YZ2
#32: RNA chain | Mass: 104019.172 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) #33: RNA chain | | Mass: 60186.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 36516 |
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-Homo sapiens ... , 2 types, 2 molecules 56
#34: RNA chain | Mass: 36908.668 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 36515 |
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#35: RNA chain | Mass: 34098.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: REF: 161087014 |
-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: Human C* Spliceosome, masked refinement / Type: COMPLEX / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Homo sapiens (human) |
Buffer solution | pH: 6.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE / Humidity: 80 % / Chamber temperature: 277 K |
-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: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Cs: 0.01 mm |
Image recording | Electron dose: 2.1 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
Image scans | Movie frames/image: 17 / Used frames/image: 2-17 |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Symmetry | Point symmetry: C1 (asymmetric) |
3D reconstruction | Resolution: 5.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 136534 / Symmetry type: POINT |
Atomic model building | Space: REAL |