Inactivation, recovery and regulation of the phototransduction cascade / methionyl aminopeptidase / initiator methionyl aminopeptidase activity / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling ...Inactivation, recovery and regulation of the phototransduction cascade / methionyl aminopeptidase / initiator methionyl aminopeptidase activity / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / pre-mRNA 5'-splice site binding / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / nonfunctional rRNA decay / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / response to cycloheximide / Ribosomal scanning and start codon recognition / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / preribosome, small subunit precursor / mRNA destabilization / Major pathway of rRNA processing in the nucleolus and cytosol / metalloaminopeptidase activity / negative regulation of translational frameshifting / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / negative regulation of mRNA splicing, via spliceosome / positive regulation of protein kinase activity / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / preribosome, large subunit precursor / Formation of a pool of free 40S subunits / L13a-mediated translational silencing of Ceruloplasmin expression / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translational elongation / ribosomal large subunit export from nucleus / G-protein alpha-subunit binding / 90S preribosome / regulation of translational fidelity / protein-RNA complex assembly / ribosomal subunit export from nucleus / maturation of LSU-rRNA / ribosomal small subunit export from nucleus / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / DNA-(apurinic or apyrimidinic site) endonuclease activity / cytosolic ribosome / rescue of stalled ribosome / protein kinase C binding / cellular response to amino acid starvation / ribosomal large subunit biogenesis / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosome assembly / maturation of SSU-rRNA / macroautophagy / small-subunit processome / translational initiation / maintenance of translational fidelity / protein processing / modification-dependent protein catabolic process / protein tag activity / cytoplasmic stress granule / rRNA processing / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / protein ubiquitination / structural constituent of ribosome / ribosome / translation / G protein-coupled receptor signaling pathway / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能
MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Zinc finger C6H2-type profile. / Methionine aminopeptidase subfamily 1 signature. / Peptidase M24A, methionine aminopeptidase, subfamily 1 / Peptidase M24, methionine aminopeptidase / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like / : ...MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Zinc finger C6H2-type profile. / Methionine aminopeptidase subfamily 1 signature. / Peptidase M24A, methionine aminopeptidase, subfamily 1 / Peptidase M24, methionine aminopeptidase / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like / : / : / Ribosomal protein S26e signature. / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein L1, conserved site / Ribosomal protein L1 signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / : / Ribosomal protein S12e signature. / Ribosomal protein L1 / Ribosomal protein S12e / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein L29e / Ribosomal L29e protein family / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Ribosomal protein S2, eukaryotic / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / S27a-like superfamily / 40S Ribosomal protein S10 / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal protein L10e, conserved site / Ribosomal protein L10e signature. / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein L19, eukaryotic / : / Ribosomal protein L10e / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein L6e signature. / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein L44e signature. / : / Ribosomal protein L19/L19e conserved site / Ribosomal protein L19e signature. / Ribosomal protein S7e signature. / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature. / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S2, eukaryotic/archaeal / : / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Ribosomal protein L44e / Ribosomal protein L44 / Ribosomal L40e family / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal protein S3Ae, conserved site / Ribosomal protein L30e signature 1. / Ribosomal protein S3Ae signature. / Ribosomal protein L36e signature. / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein 60S L18 and 50S L18e / Ribosomal_L40e 類似検索 - ドメイン・相同性
RPL38 isoform 1 / RPL10 isoform 1 / 60S ribosomal protein L29 / RPL11B isoform 1 / RPL32 isoform 1 / Small ribosomal subunit protein uS2A / Small ribosomal subunit protein eS1A / Small ribosomal subunit protein uS4A / Large ribosomal subunit protein uL15 / Small ribosomal subunit protein eS17A ...RPL38 isoform 1 / RPL10 isoform 1 / 60S ribosomal protein L29 / RPL11B isoform 1 / RPL32 isoform 1 / Small ribosomal subunit protein uS2A / Small ribosomal subunit protein eS1A / Small ribosomal subunit protein uS4A / Large ribosomal subunit protein uL15 / Small ribosomal subunit protein eS17A / Large ribosomal subunit protein eL24A / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein eL6B / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS15 / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein eS19A / Small ribosomal subunit protein eS21A / Small ribosomal subunit protein uS8A / Large ribosomal subunit protein eL27A / Large ribosomal subunit protein eL31A / Ubiquitin-ribosomal protein eL40A fusion protein / Large ribosomal subunit protein eL20A / Large ribosomal subunit protein eL43A / Large ribosomal subunit protein eL42A / Small ribosomal subunit protein uS12A / Small ribosomal subunit protein eS24A / Small ribosomal subunit protein eS30A / Small ribosomal subunit protein eS4A / Small ribosomal subunit protein eS6A / Small ribosomal subunit protein eS8A / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL1A / Large ribosomal subunit protein uL2A / Small ribosomal subunit protein uS17A / Large ribosomal subunit protein eL18A / Small ribosomal subunit protein uS9A / Small ribosomal subunit protein uS13A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Small ribosomal subunit protein eS32A / Large ribosomal subunit protein uL4A / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein eL8A / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL18 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL13A / Small ribosomal subunit protein eS7A / Small ribosomal subunit protein eS27A / Large ribosomal subunit protein eL14A / Small ribosomal subunit protein RACK1 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11B / Small ribosomal subunit protein eS26B / Small ribosomal subunit protein uS14A / Small ribosomal subunit protein eS12 / Large ribosomal subunit protein eL37A / Large ribosomal subunit protein eL34A / Methionine aminopeptidase 1 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein eL21A / Small ribosomal subunit protein eS10A / Large ribosomal subunit protein eL13A / Small ribosomal subunit protein eS25A / Small ribosomal subunit protein eS28A 類似検索 - 構成要素
ジャーナル: PLoS Biol / 年: 2023 タイトル: The dynamic architecture of Map1- and NatB-ribosome complexes coordinates the sequential modifications of nascent polypeptide chains. 著者: Alexandra G Knorr / Timur Mackens-Kiani / Joanna Musial / Otto Berninghausen / Thomas Becker / Birgitta Beatrix / Roland Beckmann / 要旨: Cotranslational modification of the nascent polypeptide chain is one of the first events during the birth of a new protein. In eukaryotes, methionine aminopeptidases (MetAPs) cleave off the starter ...Cotranslational modification of the nascent polypeptide chain is one of the first events during the birth of a new protein. In eukaryotes, methionine aminopeptidases (MetAPs) cleave off the starter methionine, whereas N-acetyl-transferases (NATs) catalyze N-terminal acetylation. MetAPs and NATs compete with other cotranslationally acting chaperones, such as ribosome-associated complex (RAC), protein targeting and translocation factors (SRP and Sec61) for binding sites at the ribosomal tunnel exit. Yet, whereas well-resolved structures for ribosome-bound RAC, SRP and Sec61, are available, structural information on the mode of ribosome interaction of eukaryotic MetAPs or of the five cotranslationally active NATs is only available for NatA. Here, we present cryo-EM structures of yeast Map1 and NatB bound to ribosome-nascent chain complexes. Map1 is mainly associated with the dynamic rRNA expansion segment ES27a, thereby kept at an ideal position below the tunnel exit to act on the emerging substrate nascent chain. For NatB, we observe two copies of the NatB complex. NatB-1 binds directly below the tunnel exit, again involving ES27a, and NatB-2 is located below the second universal adapter site (eL31 and uL22). The binding mode of the two NatB complexes on the ribosome differs but overlaps with that of NatA and Map1, implying that NatB binds exclusively to the tunnel exit. We further observe that ES27a adopts distinct conformations when bound to NatA, NatB, or Map1, together suggesting a contribution to the coordination of a sequential activity of these factors on the emerging nascent chain at the ribosomal exit tunnel.