- EMDB-15860: Cryo-EM structure of ribosome-Sec61-TRAP (TRanslocon Associated P... -
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Open data
ID or keywords:
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Basic information
Entry
Database: EMDB / ID: EMD-15860
Title
Cryo-EM structure of ribosome-Sec61-TRAP (TRanslocon Associated Protein) translocon complex
Map data
Sample
Complex: 80S ribosome complex with Sec61 and TRAP
Protein or peptide: x 48 types
RNA: x 3 types
Ligand: x 2 types
Function / homology
Function and homology information
regulation of G1 to G0 transition / exit from mitosis / 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 / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / G1 to G0 transition / positive regulation of signal transduction by p53 class mediator ...regulation of G1 to G0 transition / exit from mitosis / 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 / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / G1 to G0 transition / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein-RNA complex assembly / cellular response to actinomycin D / rough endoplasmic reticulum / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / negative regulation of ubiquitin-dependent protein catabolic process / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / ribosomal large subunit biogenesis / positive regulation of translation / cellular response to gamma radiation / mRNA 5'-UTR binding / transcription coactivator binding / rRNA processing / antimicrobial humoral immune response mediated by antimicrobial peptide / retina development in camera-type eye / regulation of translation / 5S rRNA binding / large ribosomal subunit rRNA binding / defense response to Gram-negative bacterium / killing of cells of another organism / cytosolic large ribosomal subunit / tRNA binding / cytoplasmic translation / postsynaptic density / protein stabilization / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / synapse / positive regulation of cell population proliferation / positive regulation of gene expression / nucleolus / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / RNA binding / nucleoplasm / nucleus / metal ion binding / cytoplasm Similarity search - Function
Ribosomal protein L6, N-terminal / Ribosomal protein L6, N-terminal domain / Ribosomal protein L30e / Ribosomal protein L2, archaeal-type / Ribosomal protein L28e / Ribosomal L15/L27a, N-terminal / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / Ribosomal protein L41 ...Ribosomal protein L6, N-terminal / Ribosomal protein L6, N-terminal domain / Ribosomal protein L30e / Ribosomal protein L2, archaeal-type / Ribosomal protein L28e / Ribosomal L15/L27a, N-terminal / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / Ribosomal protein L41 / Ribosomal protein L41 / metallochaperone-like domain / TRASH domain / Ribosomal protein L29e / Ribosomal L29e 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 / : / 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. / Ribosomal protein L30e signature 1. / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Ribosomal protein L30e signature 2. / Ribosomal protein L30e, conserved site / 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 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 L6e / 60S ribosomal protein L6E / 60S ribosomal protein L4, C-terminal domain / 60S ribosomal protein L4 C-terminal domain / Ribosomal protein L37ae / Ribosomal protein L7, eukaryotic / Ribosomal protein L31e, conserved site / Ribosomal L37ae protein family / 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 L5 eukaryotic/L18 archaeal / Ribosomal large subunit proteins 60S L5, and 50S L18 / Ribosomal protein L35A / Ribosomal protein L35Ae / Ribosomal protein L35A superfamily / Ribosomal protein L32e, conserved site / Ribosomal protein L32e signature. / Ribosomal protein L14 / Ribosomal protein L6, conserved site-2 / Ribosomal protein L6 signature 2. / Ribosomal protein L14, KOW motif / Ribosomal protein L4/L1e, eukaryotic/archaeal, conserved site / Ribosomal protein L1e signature. / Ribosomal protein L31e / Ribosomal protein L15e, conserved site / Ribosomal protein L31e domain superfamily Similarity search - Domain/homology
Small ribosomal subunit protein eS32 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein eL24 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL31 / Large ribosomal subunit protein eL21 ...Small ribosomal subunit protein eS32 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein eL24 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL31 / Large ribosomal subunit protein eL21 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein eL6 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein eL8 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein eL43 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein eL14 / Large ribosomal subunit protein eL15 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein eL36 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein eL27 / Large ribosomal subunit protein eL34 / Large ribosomal subunit protein eL19 / Large ribosomal subunit protein eL38 / Large ribosomal subunit protein eL42 / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein eL28 / Large ribosomal subunit protein eL37 Similarity search - Component
Journal: Sci Adv / Year: 2023 Title: Structural insights into TRAP association with ribosome-Sec61 complex and translocon inhibition by a CADA derivative. Authors: Eva Pauwels / Neesha R Shewakramani / Brent De Wijngaert / Anita Camps / Becky Provinciael / Joren Stroobants / Kai-Uwe Kalies / Enno Hartmann / Piet Maes / Kurt Vermeire / Kalyan Das / Abstract: During cotranslational translocation, the signal peptide of a nascent chain binds Sec61 translocon to initiate protein transport through the endoplasmic reticulum (ER) membrane. Our cryo-electron ...During cotranslational translocation, the signal peptide of a nascent chain binds Sec61 translocon to initiate protein transport through the endoplasmic reticulum (ER) membrane. Our cryo-electron microscopy structure of ribosome-Sec61 shows binding of an ordered heterotetrameric translocon-associated protein (TRAP) complex, in which TRAP-γ is anchored at two adjacent positions of 28 ribosomal RNA and interacts with ribosomal protein L38 and Sec61α/γ. Four transmembrane helices (TMHs) of TRAP-γ cluster with one C-terminal helix of each α, β, and δ subunits. The seven TMH bundle helps position a crescent-shaped trimeric TRAP-α/β/δ core in the ER lumen, facing the Sec61 channel. Further, our in vitro assay establishes the cyclotriazadisulfonamide derivative CK147 as a translocon inhibitor. A structure of ribosome-Sec61-CK147 reveals CK147 binding the channel and interacting with the plug helix from the lumenal side. The CK147 resistance mutations surround the inhibitor. These structures help in understanding the TRAP functions and provide a new Sec61 site for designing translocon inhibitors.
Name: MAGNESIUM ION / type: ligand / ID: 52 / Number of copies: 178 / Formula: MG
Molecular weight
Theoretical: 24.305 Da
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Macromolecule #53: ZINC ION
Macromolecule
Name: ZINC ION / type: ligand / ID: 53 / Number of copies: 5 / Formula: ZN
Molecular weight
Theoretical: 65.409 Da
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Experimental details
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Structure determination
Method
cryo EM
Processing
single particle reconstruction
Aggregation state
particle
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Sample preparation
Buffer
pH: 7.5
Grid
Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Support film - Film thickness: 2.0 nm / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.015 kPa
Vitrification
Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV
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Electron microscopy
Microscope
TFS GLACIOS
Image recording
Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 2805 / Average exposure time: 40.0 sec. / Average electron dose: 0.8 e/Å2
Electron beam
Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
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