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- PDB-6om0: Human ribosome nascent chain complex (PCSK9-RNC) stalled by a dru... -
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Basic information
Entry | Database: PDB / ID: 6om0 | ||||||
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Title | Human ribosome nascent chain complex (PCSK9-RNC) stalled by a drug-like molecule with AP and PE tRNAs | ||||||
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![]() | RIBOSOME / selective stalling / drug-like molecule / human ribosome nascent chain complex | ||||||
Function / homology | ![]() negative regulation of low-density lipoprotein particle receptor binding / negative regulation of receptor-mediated endocytosis involved in cholesterol transport / low-density lipoprotein particle receptor catabolic process / extrinsic component of external side of plasma membrane / PCSK9-LDLR complex / very-low-density lipoprotein particle binding / negative regulation of receptor recycling / PCSK9-AnxA2 complex / negative regulation of sodium ion transmembrane transporter activity / apolipoprotein receptor binding ...negative regulation of low-density lipoprotein particle receptor binding / negative regulation of receptor-mediated endocytosis involved in cholesterol transport / low-density lipoprotein particle receptor catabolic process / extrinsic component of external side of plasma membrane / PCSK9-LDLR complex / very-low-density lipoprotein particle binding / negative regulation of receptor recycling / PCSK9-AnxA2 complex / negative regulation of sodium ion transmembrane transporter activity / apolipoprotein receptor binding / negative regulation of low-density lipoprotein particle clearance / low-density lipoprotein particle binding / signaling receptor inhibitor activity / LDL clearance / positive regulation of low-density lipoprotein particle receptor catabolic process / lipoprotein metabolic process / eukaryotic 80S initiation complex / very-low-density lipoprotein particle receptor binding / negative regulation of protein neddylation / embryonic brain development / positive regulation of cysteine-type endopeptidase activity involved in execution phase of apoptosis / negative regulation of endoplasmic reticulum unfolded protein response / translation at presynapse / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein tyrosine kinase inhibitor activity / axial mesoderm development / positive regulation of respiratory burst involved in inflammatory response / ribosomal protein import into nucleus / negative regulation of formation of translation preinitiation complex / negative regulation of low-density lipoprotein receptor activity / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of gastrulation / nucleolus organization / IRE1-RACK1-PP2A complex / 90S preribosome assembly / : / positive regulation of endodeoxyribonuclease activity / positive regulation of Golgi to plasma membrane protein transport / TNFR1-mediated ceramide production / negative regulation of receptor internalization / endolysosome membrane / negative regulation of DNA repair / negative regulation of RNA splicing / TORC2 complex binding / regulation of signaling receptor activity / sodium channel inhibitor activity / GAIT complex / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / oxidized purine DNA binding / supercoiled DNA binding / neural crest cell differentiation / middle ear morphogenesis / NF-kappaB complex / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / negative regulation of phagocytosis / positive regulation of ubiquitin-protein transferase activity / rRNA modification in the nucleus and cytosol / A band / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / alpha-beta T cell differentiation / regulation of G1 to G0 transition / laminin receptor activity / exit from mitosis / lysosomal transport / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / protein kinase A binding / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / negative regulation of ubiquitin protein ligase activity / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / triglyceride metabolic process / low-density lipoprotein particle receptor binding / response to aldosterone / Translation initiation complex formation / pigmentation / retinal ganglion cell axon guidance / mammalian oogenesis stage / G1 to G0 transition / positive regulation of mitochondrial depolarization / homeostatic process / activation-induced cell death of T cells / macrophage chemotaxis / positive regulation of T cell receptor signaling pathway / lung morphogenesis / COPII-coated ER to Golgi transport vesicle / negative regulation of Wnt signaling pathway / fibroblast growth factor binding / positive regulation of activated T cell proliferation / iron-sulfur cluster binding / regulation of cell division / Protein hydroxylation Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
![]() | Li, W. / Cate, J.H.D. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for selective stalling of human ribosome nascent chain complexes by a drug-like molecule. Authors: Wenfei Li / Fred R Ward / Kim F McClure / Stacey Tsai-Lan Chang / Elizabeth Montabana / Spiros Liras / Robert G Dullea / Jamie H D Cate / ![]() Abstract: The drug-like molecule PF-06446846 (PF846) binds the human ribosome and selectively blocks the translation of a small number of proteins by an unknown mechanism. In structures of PF846-stalled human ...The drug-like molecule PF-06446846 (PF846) binds the human ribosome and selectively blocks the translation of a small number of proteins by an unknown mechanism. In structures of PF846-stalled human ribosome nascent chain complexes, PF846 binds in the ribosome exit tunnel in a eukaryotic-specific pocket formed by 28S ribosomal RNA, and alters the path of the nascent polypeptide chain. PF846 arrests the translating ribosome in the rotated state of translocation, in which the peptidyl-transfer RNA 3'-CCA end is improperly docked in the peptidyl transferase center. Selections of messenger RNAs from mRNA libraries using translation extracts reveal that PF846 can stall translation elongation, arrest termination or even enhance translation, depending on nascent chain sequence context. These results illuminate how a small molecule selectively targets translation by the human ribosome, and provides a foundation for developing small molecules that modulate the production of proteins of therapeutic interest. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 4.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 0596MC ![]() 0526C ![]() 0597C ![]() 0598C ![]() 0599C ![]() 0600C ![]() 0601C ![]() 6oleC ![]() 6olfC ![]() 6olgC ![]() 6oliC ![]() 6olzC ![]() 6om7C 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
-RNA chain , 7 types, 7 molecules S2DEtuvw
#1: RNA chain | Mass: 553505.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#38: RNA chain | Mass: 50449.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#39: RNA chain | Mass: 38385.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#79: RNA chain | Mass: 1168718.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#80: RNA chain | Mass: 24414.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#81: RNA chain | Mass: 24436.508 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#82: RNA chain | Mass: 3193.932 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+40S ribosomal protein ... , 32 types, 32 molecules SASBSDSESFSHSISKSLSPSQSRSSSTSUSVSXSaScSdSCSGSJSMSNSOSWSYSZSbSeSf
+60S ribosomal protein ... , 42 types, 42 molecules ABCFGHIJKLMNOPQRSTUVWXYZabcdef...
-Protein / Protein/peptide , 2 types, 2 molecules Sgy
#22: Protein | Mass: 34568.012 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#83: Protein/peptide | Mass: 2886.409 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 4 types, 52 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/MVM.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/MVM.gif)
![](data/chem/img/HOH.gif)
#84: Chemical | ChemComp-MG / #85: Chemical | ChemComp-ZN / #86: Chemical | ChemComp-MVM / | #87: Water | ChemComp-HOH / | |
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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 |
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Sample preparation
Component | Name: Human ribosome nascent chain complex (PCSK9-RNC) stalled by a drug-like small molecule with AP and PE tRNAs Type: RIBOSOME / Entity ID: #1-#83 / Source: NATURAL |
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Source (natural) | Organism: ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
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: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 43666 / Symmetry type: POINT |