laminin receptor activity / mammalian oogenesis stage / activation-induced cell death of T cells / positive regulation of signal transduction by p53 class mediator / phagocytic cup / ubiquitin ligase inhibitor activity / TOR signaling / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / 90S preribosome / T cell proliferation involved in immune response ...laminin receptor activity / mammalian oogenesis stage / activation-induced cell death of T cells / positive regulation of signal transduction by p53 class mediator / phagocytic cup / ubiquitin ligase inhibitor activity / TOR signaling / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / 90S preribosome / T cell proliferation involved in immune response / erythrocyte development / translation regulator activity / ribosomal small subunit export from nucleus / cytosolic ribosome / laminin binding / 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) / rough endoplasmic reticulum / gastrulation / MDM2/MDM4 family protein binding / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / rescue of stalled ribosome / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / cellular response to leukemia inhibitory factor / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / positive regulation of protein-containing complex assembly / placenta development / modification-dependent protein catabolic process / spindle / cytoplasmic ribonucleoprotein granule / rRNA processing / G1/S transition of mitotic cell cycle / protein tag activity / positive regulation of canonical Wnt signaling pathway / rhythmic process / ribosome binding / glucose homeostasis / regulation of translation / virus receptor activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / cell body / T cell differentiation in thymus / cytosolic small ribosomal subunit / perikaryon / cytoplasmic translation / mitochondrial inner membrane / postsynaptic density / cell differentiation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / positive regulation of apoptotic process / cell division / DNA repair / mRNA binding / centrosome / ubiquitin protein ligase binding / synapse / dendrite / positive regulation of cell population proliferation / nucleolus / negative regulation of apoptotic process / apoptotic process / protein kinase binding / perinuclear region of cytoplasm / Golgi apparatus / endoplasmic reticulum / DNA binding / RNA binding / zinc ion binding / membrane / nucleus / metal ion binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能
Ribosomal protein S26 / Ribosomal protein S8e, subdomain / OB fold (Dihydrolipoamide Acetyltransferase, E2P) - #1000 / Ribosomal protein S4, central domain / Phosducin; domain 2 / Ribosomal protein S21 / Alpha-Beta Plaits - #3370 / Hypothetical Cytosolic Protein; Chain: A; / Ribosomal protein S27 / first zn-finger domain of poly(adp-ribose) polymerase-1 ...Ribosomal protein S26 / Ribosomal protein S8e, subdomain / OB fold (Dihydrolipoamide Acetyltransferase, E2P) - #1000 / Ribosomal protein S4, central domain / Phosducin; domain 2 / Ribosomal protein S21 / Alpha-Beta Plaits - #3370 / Hypothetical Cytosolic Protein; Chain: A; / Ribosomal protein S27 / first zn-finger domain of poly(adp-ribose) polymerase-1 / Ribosomal Protein S14/S29 / 30s Ribosomal Protein S14; Chain N / Ribosomal Protein S8; Chain: A, domain 1 - #30 / RNA-binding S4 domain / Ribosomal Protein S7 / Ribosomal protein S7/S5 / Dna Ligase; domain 1 - #10 / Ribosomal protein S11/S14 / Ribosomal protein S10 / Structural Genomics Hypothetical 15.5 Kd Protein In mrcA-pckA Intergenic Region; Chain A / S15/NS1, RNA-binding / SH3 type barrels. - #30 / Ribosomal protein L30/S12 / Double Stranded RNA Binding Domain - #20 / Glucose-6-phosphate isomerase like protein; domain 1 / Ribosomal Protein S8; Chain: A, domain 1 / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / Ribosomal Protein S5; domain 2 - #10 / N-terminal domain of TfIIb / Ubiquitin-like protein FUBI / Ribosomal Protein S5; domain 2 / : / Ribosomal protein S26e signature. / Double Stranded RNA Binding Domain / : / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein S5, eukaryotic/archaeal / YVTN repeat-like/Quinoprotein amine dehydrogenase / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S21e / Ribosomal protein S2, eukaryotic / Ribosomal protein S21e superfamily / Ribosomal protein S21e / S27a-like superfamily / 40S Ribosomal protein S10 / Ribosomal protein S10, eukaryotic/archaeal / 60s Ribosomal Protein L30; Chain: A; / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S27a / Ribosomal protein S2, eukaryotic/archaeal / : / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S30 / Ribosomal protein S30 / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S7e signature. / Ribosomal protein S3, eukaryotic/archaeal / : / Ribosomal protein S19e / Ribosomal protein S3Ae, conserved site / Ribosomal protein S19e / Ribosomal protein S3Ae signature. / Ribosomal_S19e / Ribosomal protein S27e signature. / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S19A/S15e / Ribosomal protein S8e, conserved site / Ribosomal protein S8e signature. / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / Ribosomal protein S6, eukaryotic / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / 40S ribosomal protein S1/3, eukaryotes / Ribosomal S24e conserved site / Ribosomal protein S24e signature. / 40S ribosomal protein S11, N-terminal 類似検索 - ドメイン・相同性
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein eS32 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein eS12 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein RACK1 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein eS32 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein eS12 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein RACK1 / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS11 / 40S ribosomal protein S24 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein eS28 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein eS4 / Small ribosomal subunit protein eS6 / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein eS10 / Small ribosomal subunit protein uS17 / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS14 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM29169
米国
引用
ジャーナル: EMBO J / 年: 2019 タイトル: The Israeli acute paralysis virus IRES captures host ribosomes by mimicking a ribosomal state with hybrid tRNAs. 著者: Francisco Acosta-Reyes / Ritam Neupane / Joachim Frank / Israel S Fernández / 要旨: Colony collapse disorder (CCD) is a multi-faceted syndrome decimating bee populations worldwide, and a group of viruses of the widely distributed Dicistroviridae family have been identified as a ...Colony collapse disorder (CCD) is a multi-faceted syndrome decimating bee populations worldwide, and a group of viruses of the widely distributed Dicistroviridae family have been identified as a causing agent of CCD. This family of viruses employs non-coding RNA sequences, called internal ribosomal entry sites (IRESs), to precisely exploit the host machinery for viral protein production. Using single-particle cryo-electron microscopy (cryo-EM), we have characterized how the IRES of Israeli acute paralysis virus (IAPV) intergenic region captures and redirects translating ribosomes toward viral RNA messages. We reconstituted two in vitro reactions targeting a pre-translocation and a post-translocation state of the IAPV-IRES in the ribosome, allowing us to identify six structures using image processing classification methods. From these, we reconstructed the trajectory of IAPV-IRES from the early small subunit recruitment to the final post-translocated state in the ribosome. An early commitment of IRES/ribosome complexes for global pre-translocation mimicry explains the high efficiency observed for this IRES. Efforts directed toward fighting CCD by targeting the IAPV-IRES using RNA-interference technology are underway, and the structural framework presented here may assist in further refining these approaches.
名称: Structure of a mammalian small ribosomal subunit in complex with the Israeli Acute Paralysis Virus IRES (Class 1) タイプ: RIBOSOME / Entity ID: all / 由来: MULTIPLE SOURCES
分子量
実験値: NO
由来(天然)
生物種: Israeli acute paralysis virus (ウイルス)
由来(組換発現)
生物種: Israeli acute paralysis virus (ウイルス)
緩衝液
ID
Specimen-ID
pH
1
1
7.5
2
2
7.5
緩衝液成分
ID
濃度
式
Buffer-ID
1
20mM
Tris-HCl
1
2
100mM
KCl
1
3
8mM
MgCl2
1
4
2mM
DTT
1
5
2
試料
ID
Experiment-ID
包埋
シャドウイング
染色
凍結
詳細
1
1
NO
NO
NO
YES
Ribosomal complexes for the pre-translocated state were assembled at 240-390 nM concentration and applied to plasma treated holey carbon grids.
凍結前の試料温度: 277.15 K / 凍結剤: ETHANE / 詳細: Blot force = 3s Wait time = 15s Drain time = 0s Blot time = 2.5 to 3 s / Entry-ID: 6P4G / 湿度: 100 % / 装置: FEI VITROBOT MARK IV
解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 91056 / 対称性のタイプ: POINT
精密化
解像度: 3.1→255.23 Å / Cor.coef. Fo:Fc: 0.859 / SU B: 18.645 / SU ML: 0.284 / ESU R: 0.417 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
Rfactor
反射数
%反射
Rwork
0.35594
-
-
obs
0.35594
872093
100 %
溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK