- EMDB-0202: Cryo-EM structure of the ribosome-NatA complex -
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基本情報
登録情報
データベース: EMDB / ID: EMD-0202
タイトル
Cryo-EM structure of the ribosome-NatA complex
マップデータ
Ribosome-NatA complex aligned on the ribosome and filtered according to local resolution.
試料
複合体: Ribosome-NatA complex
複合体: 60S ribosomal subunit
RNA: x 5種
タンパク質・ペプチド: x 42種
複合体: N-terminal acetyl transferase A
タンパク質・ペプチド: x 3種
タンパク質・ペプチド: x 1種
リガンド: x 1種
機能・相同性
機能・相同性情報
peptide-glutamate-alpha-N-acetyltransferase activity / N-terminal methionine Nalpha-acetyltransferase NatE / N-terminal amino-acid Nalpha-acetyltransferase NatA / peptide-serine-alpha-N-acetyltransferase activity / NatA complex / peptide alpha-N-acetyltransferase activity / pre-mRNA 5'-splice site binding / mitotic sister chromatid cohesion / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide ...peptide-glutamate-alpha-N-acetyltransferase activity / N-terminal methionine Nalpha-acetyltransferase NatE / N-terminal amino-acid Nalpha-acetyltransferase NatA / peptide-serine-alpha-N-acetyltransferase activity / NatA complex / peptide alpha-N-acetyltransferase activity / pre-mRNA 5'-splice site binding / mitotic sister chromatid cohesion / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / L13a-mediated translational silencing of Ceruloplasmin expression / preribosome, large subunit precursor / translational elongation / ribosomal large subunit export from nucleus / protein-RNA complex assembly / regulation of translational fidelity / translational termination / maturation of LSU-rRNA / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / translational initiation / macroautophagy / maintenance of translational fidelity / modification-dependent protein catabolic process / rRNA processing / protein tag activity / ribosome biogenesis / ribosome binding / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / rRNA binding / negative regulation of translation / ribosome / protein ubiquitination / structural constituent of ribosome / translation / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / mitochondrion / RNA binding / identical protein binding / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能
: / N-terminal acetyltransferase A, auxiliary subunit / N-terminal acetyltransferase A, auxiliary subunit / N-acetyltransferase Ard1-like / Acetyltransferase (GNAT) family / : / Gcn5-related N-acetyltransferase (GNAT) domain profile. / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L13e, conserved site ...: / N-terminal acetyltransferase A, auxiliary subunit / N-terminal acetyltransferase A, auxiliary subunit / N-acetyltransferase Ard1-like / Acetyltransferase (GNAT) family / : / Gcn5-related N-acetyltransferase (GNAT) domain profile. / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / GNAT domain / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / : / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L44e signature. / Ribosomal protein L10e, conserved site / Ribosomal protein L10e signature. / Ribosomal protein L10e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein L19, eukaryotic / 60S ribosomal protein L18a/ L20, eukaryotes / : / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L44e / Ribosomal protein L19/L19e conserved site / Ribosomal protein L44 / Ribosomal protein L19e signature. / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature. / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein L6e signature. / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal L40e family / Ribosomal protein L30e signature 1. / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal_L40e / Ribosomal protein L40e / Ribosomal protein L40e superfamily / Ribosomal protein L30e signature 2. / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L30e, conserved site / Ribosomal protein L23, N-terminal domain / Ribosomal protein 60S L18 and 50S L18e / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal L27e protein family / Ribosomal protein L36e signature. / Ribosomal protein L39e, conserved site / Ribosomal protein L39e signature. / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / Ribosomal protein L34Ae / Ribosomal protein L34e / 60S ribosomal protein L19 / Ribosomal protein L35Ae, conserved site / Ribosomal protein L35Ae signature. / Ribosomal protein L30/YlxQ / 60S ribosomal protein L35 / Ribosomal Protein L6, KOW domain / Ribosomal protein L7A/L8 / Ribosomal protein L13, eukaryotic/archaeal / Ribosomal protein L6e / Ribosomal protein L18e / 60S ribosomal protein L6E / Ribosomal protein L37ae / Ribosomal L37ae protein family / 60S ribosomal protein L4, C-terminal domain / 60S ribosomal protein L4 C-terminal domain / Ribosomal protein L7, eukaryotic / Ribosomal protein L31e, conserved site / Ribosomal protein L31e signature. / Ribosomal_L19e / Ribosomal protein L30, N-terminal / Ribosomal L30 N-terminal domain / Ribosomal protein L19/L19e / Ribosomal protein L19/L19e, domain 1 / Ribosomal protein L19/L19e superfamily / Ribosomal protein L19e / Ribosomal protein L36e / Ribosomal protein L36e domain superfamily / Ribosomal protein L36e / Ribosomal protein L39e / Ribosomal protein L14e domain / Ribosomal protein L39e domain superfamily / Ribosomal L39 protein / Ribosomal protein L14 / Ribosomal protein L35A / Ribosomal protein L5 eukaryotic/L18 archaeal 類似検索 - ドメイン・相同性
Large ribosomal subunit protein uL15 / 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 uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A ...Large ribosomal subunit protein uL15 / 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 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 / N-terminal acetyltransferase A complex catalytic subunit ARD1 / Large ribosomal subunit protein uL5A / 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 / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL2A / Large ribosomal subunit protein eL18A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Large ribosomal subunit protein uL4A / N-terminal acetyltransferase A complex subunit NAT1 / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein eL8A / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL13A / Large ribosomal subunit protein eL14A / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein eL37A / Large ribosomal subunit protein eL38 / Large ribosomal subunit protein eL34A / Large ribosomal subunit protein eL6A / Large ribosomal subunit protein eL21A / N-alpha-acetyltransferase NAT5 / Large ribosomal subunit protein eL13A 類似検索 - 構成要素
ジャーナル: Nat Struct Mol Biol / 年: 2019 タイトル: Ribosome-NatA architecture reveals that rRNA expansion segments coordinate N-terminal acetylation. 著者: Alexandra G Knorr / Christian Schmidt / Petr Tesina / Otto Berninghausen / Thomas Becker / Birgitta Beatrix / Roland Beckmann / 要旨: The majority of eukaryotic proteins are N-terminally α-acetylated by N-terminal acetyltransferases (NATs). Acetylation usually occurs co-translationally and defects have severe consequences. ...The majority of eukaryotic proteins are N-terminally α-acetylated by N-terminal acetyltransferases (NATs). Acetylation usually occurs co-translationally and defects have severe consequences. Nevertheless, it is unclear how these enzymes act in concert with the translating ribosome. Here, we report the structure of a native ribosome-NatA complex from Saccharomyces cerevisiae. NatA (comprising Naa10, Naa15 and Naa50) displays a unique mode of ribosome interaction by contacting eukaryotic-specific ribosomal RNA expansion segments in three out of four binding patches. Thereby, NatA is dynamically positioned directly underneath the ribosomal exit tunnel to facilitate modification of the emerging nascent peptide chain. Methionine amino peptidases, but not chaperones or signal recognition particle, would be able to bind concomitantly. This work assigns a function to the hitherto enigmatic ribosomal RNA expansion segments and provides mechanistic insights into co-translational protein maturation by N-terminal acetylation.