DNA deamination / nucleolar exosome (RNase complex) / exoribonuclease II activity / exoribonuclease II / Dom34-Hbs1 complex / nuclear-transcribed mRNA catabolic process, no-go decay / U1 snRNA 3'-end processing / U5 snRNA 3'-end processing / TRAMP-dependent tRNA surveillance pathway / Ski complex ...DNA deamination / nucleolar exosome (RNase complex) / exoribonuclease II activity / exoribonuclease II / Dom34-Hbs1 complex / nuclear-transcribed mRNA catabolic process, no-go decay / U1 snRNA 3'-end processing / U5 snRNA 3'-end processing / TRAMP-dependent tRNA surveillance pathway / Ski complex / CUT catabolic process / exosome (RNase complex) / U4 snRNA 3'-end processing / cytoplasmic exosome (RNase complex) / mRNA decay by 3' to 5' exoribonuclease / nuclear polyadenylation-dependent rRNA catabolic process / poly(A)-dependent snoRNA 3'-end processing / nuclear exosome (RNase complex) / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Tristetraprolin (TTP, ZFP36) binds and destabilizes mRNA / ATF4 activates genes in response to endoplasmic reticulum stress / histone mRNA catabolic process / Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA / positive regulation of isotype switching / 3'-5' RNA helicase activity / nuclear mRNA surveillance / rRNA catabolic process / 7S RNA binding / mRNA 3'-UTR AU-rich region binding / eukaryotic 80S initiation complex / negative regulation of protein neddylation / negative regulation of endoplasmic reticulum unfolded protein response / isotype switching / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of formation of translation preinitiation complex / regulation of G1 to G0 transition / axial mesoderm development / negative regulation of peptidyl-serine phosphorylation / positive regulation of respiratory burst involved in inflammatory response / ribosomal protein import into nucleus / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / 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 / positive regulation of gastrulation / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / protein-DNA complex disassembly / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / nucleolus organization / positive regulation of Golgi to plasma membrane protein transport / translation at postsynapse / ribosome disassembly / TNFR1-mediated ceramide production / RNA catabolic process / negative regulation of DNA repair / negative regulation of RNA splicing / mammalian oogenesis stage / GAIT complex / A band / positive regulation of DNA damage response, signal transduction by p53 class mediator / supercoiled DNA binding / activation-induced cell death of T cells / TORC2 complex binding / neural crest cell differentiation / alpha-beta T cell differentiation / G1 to G0 transition / NF-kappaB complex / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / middle ear morphogenesis / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / exit from mitosis / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / translation at presynapse / positive regulation of ubiquitin-protein transferase activity / Formation of the ternary complex, and subsequently, the 43S complex / negative regulation of phagocytosis / erythrocyte homeostasis / rRNA modification in the nucleus and cytosol / optic nerve development / cytoplasmic side of rough endoplasmic reticulum membrane / KSRP (KHSRP) binds and destabilizes mRNA / laminin receptor activity / protein kinase A binding / retinal ganglion cell axon guidance / maturation of 5.8S rRNA / negative regulation of ubiquitin protein ligase activity / pigmentation / nuclear chromosome / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / homeostatic process / Translation initiation complex formation / response to aldosterone Similarity search - Function
Exosome complex component Rrp43 / : / Mammalian exosome complex component RRP40, N-terminal / HBS1-like protein, N-terminal domain superfamily / HBS1-like protein, N-terminal / HBS1 N-terminus / Ski2, N-terminal domain / Ski2 N-terminal region / Exosome complex exonuclease RRP44, S1 domain / S1 domain ...Exosome complex component Rrp43 / : / Mammalian exosome complex component RRP40, N-terminal / HBS1-like protein, N-terminal domain superfamily / HBS1-like protein, N-terminal / HBS1 N-terminus / Ski2, N-terminal domain / Ski2 N-terminal region / Exosome complex exonuclease RRP44, S1 domain / S1 domain / Exosome complex component RRP45 / Rrp40, S1 domain / : / Exosome complex component RRP40, S1 domain / Exosome complex component CSL4, C-terminal / Exosome complex component, N-terminal domain / Exosome complex component Csl4 / Exosome component EXOSC1/CSL4 / Exosome complex exonuclease RRP4 N-terminal region / RRP4, S1 domain / Rrp44-like cold shock domain / Rrp44-like cold shock domain / : / KH domain / Exosome complex RNA-binding protein 1/RRP40/RRP4 / Dis3-like cold-shock domain 2 / Dis3-like cold-shock domain 2 (CSD2) / : / Ribonuclease II/R, conserved site / rRNA-processing arch domain / Ribonuclease II family signature. / Mtr4-like, beta-barrel domain / : / Ribonuclease II/R / RNB domain / RNB / : / ATP-dependent RNA helicase Ski2, C-terminal / ATP-dependent RNA helicase Ski2-like / : / DSHCT (NUC185) domain / Exosome RNA helicase MTR4-like, stalk / DSHCT / : / : / GTP-eEF1A C-terminal domain-like / Exoribonuclease, phosphorolytic domain 2 / 3' exoribonuclease family, domain 2 / Exoribonuclease, phosphorolytic domain 1 / PNPase/RNase PH domain superfamily / Exoribonuclease, PH domain 2 superfamily / 3' exoribonuclease family, domain 1 / : / K Homology domain, type 1 / K Homology domain, type 1 superfamily / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / Ribosomal protein L6, N-terminal / Ribosomal protein L6, N-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Ubiquitin-like protein FUBI / Ribosomal protein L30e / Ribosomal protein L2, archaeal-type / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / metallochaperone-like domain / TRASH domain / : / Ribosomal protein S26e signature. / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / : / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein S2, eukaryotic / S27a-like superfamily / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Translation elongation factor EFTu-like, domain 2 Similarity search - Domain/homology
Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL6 ...Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein eL22 / Large ribosomal subunit protein uL4 / Small ribosomal subunit protein eS19 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL13 / Small ribosomal subunit protein eS27 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein eL21 / Large ribosomal subunit protein eL28 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL34 / Large ribosomal subunit protein eL14 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein eS1 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein eL15 / Large ribosomal subunit protein eL27 / Large ribosomal subunit protein eL43 / Large ribosomal subunit protein eL37 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein eL8 / Small ribosomal subunit protein eS4, X isoform / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein eS6 / Large ribosomal subunit protein uL14 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein eS24 / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein eS28 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein eL31 / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL2 / Small ribosomal subunit protein eS32 / Ubiquitin-ribosomal protein eS31 fusion protein / Ubiquitin-ribosomal protein eL40 fusion protein / Large ribosomal subunit protein eL38 / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein RACK1 / Large ribosomal subunit protein eL24 / Large ribosomal subunit protein eL42 / Large ribosomal subunit protein eL19 / Large ribosomal subunit protein eL20 / Large ribosomal subunit protein eL6 / Exosome complex component RRP45 / Large ribosomal subunit protein eL18 / Exosome complex component RRP4 / Exosome complex component RRP42 / Superkiller complex protein 2 / Exosome complex component MTR3 / DIS3-like exonuclease 1 / Exosome complex component RRP43 / Ribosomal protein uL16-like / Exosome complex component RRP41 / Exosome complex component RRP46 / Exosome complex component RRP40 / Exosome complex component CSL4 / Large ribosomal subunit protein eL36 / HBS1-like protein Similarity search - Component
Biological species
Homo sapiens (human) / Cricket paralysis virus
Method
single particle reconstruction / cryo EM / Resolution: 3.3 Å
Journal: Nature / Year: 2024 Title: Structural basis of mRNA decay by the human exosome-ribosome supercomplex. Authors: Alexander Kögel / Achim Keidel / Matina-Jasemi Loukeri / Christopher C Kuhn / Lukas M Langer / Ingmar B Schäfer / Elena Conti / Abstract: The interplay between translation and mRNA decay is widespread in human cells. In quality-control pathways, exonucleolytic degradation of mRNA associated with translating ribosomes is mediated ...The interplay between translation and mRNA decay is widespread in human cells. In quality-control pathways, exonucleolytic degradation of mRNA associated with translating ribosomes is mediated largely by the cytoplasmic exosome, which includes the exoribonuclease complex EXO10 and the helicase complex SKI238 (refs. ). The helicase can extract mRNA from the ribosome and is expected to transfer it to the exoribonuclease core through a bridging factor, HBS1L3 (also known as SKI7), but the mechanisms of this molecular handover remain unclear. Here we reveal how human EXO10 is recruited by HBS1L3 (SKI7) to an active ribosome-bound SKI238 complex. We show that rather than a sequential handover, a direct physical coupling mechanism takes place, which culminates in the formation of a cytoplasmic exosome-ribosome supercomplex. Capturing the structure during active decay reveals a continuous path in which an RNA substrate threads from the 80S ribosome through the SKI2 helicase into the exoribonuclease active site of the cytoplasmic exosome complex. The SKI3 subunit of the complex directly binds to HBS1L3 (SKI7) and also engages a surface of the 40S subunit, establishing a recognition platform in collided disomes. Exosome and ribosome thus work together as a single structural and functional unit in co-translational mRNA decay, coordinating their activities in a transient supercomplex.
Entire : human 80S ribosome bound by a SKI2-exosome complex
Entire
Name: human 80S ribosome bound by a SKI2-exosome complex
Components
Complex: human 80S ribosome bound by a SKI2-exosome complex
Protein or peptide: Helicase SKI2W
Protein or peptide: Exosome complex component RRP41
Protein or peptide: Exosome complex component RRP43
Protein or peptide: Exosome complex component RRP46
Protein or peptide: Exosome complex component RRP42
Protein or peptide: Exosome complex component MTR3
Protein or peptide: Exosome complex component RRP40,Exosome complex component MTR3
Protein or peptide: Exosome complex component RRP4
Protein or peptide: Exosome complex component CSL4
Protein or peptide: Exosome complex component RRP45
Protein or peptide: Isoform 2 of HBS1-like protein
Protein or peptide: DIS3-like exonuclease 1
RNA: CrPV-IRES RNA
RNA: 18S ribosomal RNA
Protein or peptide: 40S ribosomal protein SA
Protein or peptide: 40S ribosomal protein S3a
Protein or peptide: 40S ribosomal protein S3
Protein or peptide: 40S ribosomal protein S4, X isoform
Protein or peptide: 40S ribosomal protein S5
Protein or peptide: 40S ribosomal protein S7
Protein or peptide: 40S ribosomal protein S8
Protein or peptide: 40S ribosomal protein S10
Protein or peptide: 40S ribosomal protein S11
Protein or peptide: 40S ribosomal protein S15
Protein or peptide: 40S ribosomal protein S16
Protein or peptide: 40S ribosomal protein S17
Protein or peptide: 40S ribosomal protein S18
Protein or peptide: 40S ribosomal protein S19
Protein or peptide: 40S ribosomal protein S20
Protein or peptide: 40S ribosomal protein S21
Protein or peptide: 40S ribosomal protein S23
Protein or peptide: 40S ribosomal protein S26
Protein or peptide: 40S ribosomal protein S28
Protein or peptide: 40S ribosomal protein S29
Protein or peptide: Ubiquitin
Protein or peptide: Receptor of activated protein C kinase 1
Protein or peptide: 40S ribosomal protein S2
Protein or peptide: 40S ribosomal protein S6
Protein or peptide: 40S ribosomal protein S9
Protein or peptide: 40S ribosomal protein S12
Protein or peptide: 40S ribosomal protein S13
Protein or peptide: 40S ribosomal protein S14
Protein or peptide: 40S ribosomal protein S15a
Protein or peptide: 40S ribosomal protein S24
Protein or peptide: 40S ribosomal protein S25
Protein or peptide: 40S ribosomal protein S27
Protein or peptide: 40S ribosomal protein S30
RNA: 28S ribosomal RNA
RNA: 5S ribosomal RNA
RNA: 5.8S ribosomal RNA
Protein or peptide: 60S ribosomal protein L8
Protein or peptide: 60S ribosomal protein L3
Protein or peptide: 60S ribosomal protein L4
Protein or peptide: 60S ribosomal protein L5
Protein or peptide: Large ribosomal subunit protein eL6
Protein or peptide: Large ribosomal subunit protein uL30
Protein or peptide: 60S ribosomal protein L7a
Protein or peptide: 60S ribosomal protein L9
Protein or peptide: Ribosomal protein uL16-like
Protein or peptide: 60S ribosomal protein L11
Protein or peptide: 60S ribosomal protein L13
Protein or peptide: 60S ribosomal protein L14
Protein or peptide: 60S ribosomal protein L15
Protein or peptide: 60S ribosomal protein L13a
Protein or peptide: 60S ribosomal protein L17
Protein or peptide: 60S ribosomal protein L18
Protein or peptide: 60S ribosomal protein L19
Protein or peptide: 60S ribosomal protein L18a
Protein or peptide: 60S ribosomal protein L21
Protein or peptide: 60S ribosomal protein L22
Protein or peptide: 60S ribosomal protein L23
Protein or peptide: 60S ribosomal protein L24
Protein or peptide: 60S ribosomal protein L23a
Protein or peptide: 60S ribosomal protein L26
Protein or peptide: 60S ribosomal protein L27
Protein or peptide: 60S ribosomal protein L27a
Protein or peptide: 60S ribosomal protein L29
Protein or peptide: 60S ribosomal protein L30
Protein or peptide: 60S ribosomal protein L31
Protein or peptide: 60S ribosomal protein L32
Protein or peptide: 60S ribosomal protein L35a
Protein or peptide: 60S ribosomal protein L34
Protein or peptide: 60S ribosomal protein L35
Protein or peptide: 60S ribosomal protein L36
Protein or peptide: 60S ribosomal protein L37
Protein or peptide: 60S ribosomal protein L38
Protein or peptide: 60S ribosomal protein L39
Protein or peptide: Ubiquitin-60S ribosomal protein L40
Protein or peptide: 60S ribosomal protein L41
Protein or peptide: 60S ribosomal protein L36a
Protein or peptide: 60S ribosomal protein L37a
Protein or peptide: 60S ribosomal protein L28
Ligand: MAGNESIUM ION
Ligand: ZINC ION
+
Supramolecule #1: human 80S ribosome bound by a SKI2-exosome complex
Supramolecule
Name: human 80S ribosome bound by a SKI2-exosome complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#92
Source (natural)
Organism: Homo sapiens (human)
+
Macromolecule #1: Helicase SKI2W
Macromolecule
Name: Helicase SKI2W / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
Name: Isoform 2 of HBS1-like protein / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement
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