nuclear RNA export factor complex / regulation of ribosomal subunit export from nucleus / nuclear pore central transport channel / Hydrolases / tRNA re-export from nucleus / Transport of Mature mRNA derived from an Intron-Containing Transcript / tRNA export from nucleus / positive regulation of ATP-dependent activity / U4 snRNA binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) ...nuclear RNA export factor complex / regulation of ribosomal subunit export from nucleus / nuclear pore central transport channel / Hydrolases / tRNA re-export from nucleus / Transport of Mature mRNA derived from an Intron-Containing Transcript / tRNA export from nucleus / positive regulation of ATP-dependent activity / U4 snRNA binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of polysaccharide biosynthetic process / tRNA processing / poly(A)+ mRNA export from nucleus / maturation of 5.8S rRNA / transporter complex / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / porin activity / lipopolysaccharide transport / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / ATPase activator activity / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / nuclear-transcribed mRNA catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / Gram-negative-bacterium-type cell outer membrane assembly / translational elongation / ribosomal large subunit export from nucleus / U5 snRNA binding / U2 snRNA binding / U6 snRNA binding / nuclear pore / ribosomal subunit export from nucleus / mRNA export from nucleus / regulation of translational fidelity / U1 snRNA binding / protein-RNA complex assembly / maturation of LSU-rRNA / ribosomal small subunit export from nucleus / Neutrophil degranulation / translation initiation factor activity / assembly of large subunit precursor of preribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / cytosolic ribosome assembly / maturation of SSU-rRNA / macroautophagy / small-subunit processome / maintenance of translational fidelity / cell outer membrane / metallopeptidase activity / rRNA processing / protein transport / ribosome biogenesis / ATPase binding / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / protein-macromolecule adaptor activity / cytosolic large ribosomal subunit / nucleic acid binding / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / mRNA binding / GTPase activity / GTP binding / nucleolus / proteolysis / RNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytosol / cytoplasm Similarity search - Function
: / Nuclear pore RNA shuttling protein Mtr2 / Nuclear pore RNA shuttling protein Mtr2 / Mex67, RNA recognition motif / RNA recognition motif / Ribosome biogenesis protein Alb1 / Alb1 / Translation machinery-associated protein 16 / Tma16 superfamily / Translation machinery-associated protein 16 ...: / Nuclear pore RNA shuttling protein Mtr2 / Nuclear pore RNA shuttling protein Mtr2 / Mex67, RNA recognition motif / RNA recognition motif / Ribosome biogenesis protein Alb1 / Alb1 / Translation machinery-associated protein 16 / Tma16 superfamily / Translation machinery-associated protein 16 / TAP C-terminal (TAP-C) domain / Nmd3, N-terminal / Ribosomal export protein Nmd3 / : / : / TAP C-terminal domain / NMD3 family / NMD3 OB-fold domain / NMD3 SH3 domain / NXF1/2/3/5 leucine-rich repeat domain / TAP C-terminal (TAP-C) domain profile. / C-terminal domain of vertebrate Tap protein / Nuclear RNA export factor / Nuclear RNA export factor, NTF2 domain / Nuclear transport factor 2, eukaryote / Nuclear transport factor 2 domain profile. / : / : / Domain of unknown function DUF2423 / YBL028C ribosome biogenesis factor, N-terminal domain / Nucleolar GTP-binding protein 2, N-terminal domain / Nucleolar GTP-binding protein 2 / NGP1NT (NUC091) domain / Nuclear transport factor 2 domain / Zinc-finger double-stranded RNA-binding / Zinc finger, double-stranded RNA binding / : / Ribosomal biogenesis NSA2 family / GTP-binding protein, orthogonal bundle domain superfamily / Ribosome assembly factor Mrt4 / : / NOG, C-terminal / Nucleolar GTP-binding protein 1 / NOGCT (NUC087) domain / Nucleolar GTP-binding protein 1, Rossman-fold domain / NOG1, N-terminal helical domain / Nucleolar GTP-binding protein 1 (NOG1) / NOG1 N-terminal helical domain / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain profile. / Matrin/U1-C-like, C2H2-type zinc finger / U1-like zinc finger / OBG-type guanine nucleotide-binding (G) domain / OBG-type guanine nucleotide-binding (G) domain profile. / Translation initiation factor IF6 / eIF-6 family / translation initiation factor 6 / 50S ribosome-binding GTPase / LptD, C-terminal / LPS-assembly protein LptD / : / LPS transport system D / Organic solvent tolerance-like, N-terminal / LptA/(LptD N-terminal domain) LPS transport protein / Creatinase/aminopeptidase-like / UBA-like superfamily / GTP binding domain / Group II dsDNA virus coat/capsid protein / 50S ribosomal protein L10, insertion domain superfamily / : / 60S ribosomal protein L10P, insertion domain / Insertion domain in 60S ribosomal protein L10P / metallochaperone-like domain / TRASH domain / Ribosomal protein L1, conserved site / NTF2-like domain superfamily / Ribosomal protein L1 signature. / Ribosomal protein L1 / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein L44e signature. / Ribosomal protein L19/L19e conserved site / Ribosomal protein L19, eukaryotic / Ribosomal protein L19e signature. / : / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal protein L6e signature. / : / Ribosomal protein L44e / Ribosomal protein L44 / Ribosomal protein L34e, conserved site Similarity search - Domain/homology
Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL29 ...Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A / Large ribosomal subunit protein uL5A / Large ribosomal subunit protein eL27A / Large ribosomal subunit protein eL31A / Large ribosomal subunit protein eL20A / Large ribosomal subunit protein eL43A / Large ribosomal subunit protein eL42A / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL1A / Large ribosomal subunit protein uL2A / Large ribosomal subunit protein eL18A / Large ribosomal subunit protein uL11A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Large ribosomal subunit protein uL4A / Putative major capsid protein p72 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein eL8A / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL13A / Ribosome assembly factor MRT4 / mRNA transport regulator MTR2 / Large ribosomal subunit protein eL14A / Large ribosomal subunit protein eL32 / UPF0642 protein YBL028C / 60S ribosomal export protein NMD3 / Shuttling pre-60S factor ECM1 / Ribosome biogenesis protein NSA2 / Ribosome biogenesis protein ALB1 / Large ribosomal subunit protein eL37A / Large ribosomal subunit protein eL38 / Nucleolar GTP-binding protein 2 / Large ribosomal subunit protein eL34A / Large ribosomal subunit protein eL6A / Large ribosomal subunit protein eL21A / Nucleolar GTP-binding protein 1 / Probable metalloprotease ARX1 / Ribosome biogenesis protein RLP24 / Bud site selection protein 20 / Translation machinery-associated protein 16 / Eukaryotic translation initiation factor 6 / LPS-assembly protein LptD / mRNA export factor MEX67 Similarity search - Component
Biological species
Saccharomyces cerevisiae S288C (yeast)
Method
single particle reconstruction / cryo EM / Resolution: 2.64 Å
National Natural Science Foundation of China (NSFC)
China
Citation
Journal: Nature / Year: 2023 Title: Nuclear export of pre-60S particles through the nuclear pore complex. Authors: Zongqiang Li / Shuaijiabin Chen / Liang Zhao / Guoqiang Huang / Huiqin Xu / Xiaoyun Yang / Peiyi Wang / Ning Gao / Sen-Fang Sui / Abstract: The nuclear pore complex (NPC) is the bidirectional gate that mediates the exchange of macromolecules or their assemblies between nucleus and cytoplasm. The assembly intermediates of the ribosomal ...The nuclear pore complex (NPC) is the bidirectional gate that mediates the exchange of macromolecules or their assemblies between nucleus and cytoplasm. The assembly intermediates of the ribosomal subunits, pre-60S and pre-40S particles, are among the largest cargoes of the NPC and the export of these gigantic ribonucleoproteins requires numerous export factors. Here we report the cryo-electron microscopy structure of native pre-60S particles trapped in the channel of yeast NPCs. In addition to known assembly factors, multiple factors with export functions are also included in the structure. These factors in general bind to either the flexible regions or subunit interface of the pre-60S particle, and virtually form many anchor sites for NPC binding. Through interactions with phenylalanine-glycine (FG) repeats from various nucleoporins of NPC, these factors collectively facilitate the passage of the pre-60S particle through the central FG repeat network of the NPC. Moreover, in silico analysis of the axial and radial distribution of pre-60S particles within the NPC shows that a single NPC can take up to four pre-60S particles simultaneously, and pre-60S particles are enriched in the inner ring regions close to the wall of the NPC with the solvent-exposed surface facing the centre of the nuclear pore. Our data suggest a translocation model for the export of pre-60S particles through the NPC.
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