positive regulation of mRNA catabolic process / ribosomal subunit / exit from mitosis / optic nerve development / retinal ganglion cell axon guidance / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein-RNA complex assembly / rough endoplasmic reticulum / MDM2/MDM4 family protein binding ...positive regulation of mRNA catabolic process / ribosomal subunit / exit from mitosis / optic nerve development / retinal ganglion cell axon guidance / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein-RNA complex assembly / rough endoplasmic reticulum / MDM2/MDM4 family protein binding / cytosolic ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / cellular response to starvation / Regulation of TP53 Activity through Methylation / antimicrobial humoral immune response mediated by antimicrobial peptide / regulation of translation / large ribosomal subunit / ribosome binding / retina development in camera-type eye / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytoplasmic vesicle / defense response to Gram-negative bacterium / cytosolic large ribosomal subunit / killing of cells of another organism / cytoplasmic translation / tRNA binding / postsynaptic density / rRNA binding / ribosome / structural constituent of ribosome / mitochondrial matrix / translation / ribonucleoprotein complex / DNA repair / mRNA binding / synapse / DNA damage response / chromatin binding / nucleolus / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / mitochondrion / DNA binding / RNA binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function
Tetratricopeptide repeat protein 5, OB fold domain / TTC5, OB fold domain superfamily / Tetratricopeptide repeat protein 5 OB fold domain / Ribosomal protein L6, N-terminal / Ribosomal protein L6, N-terminal domain / Ribosomal protein L30e / Ribosomal protein L2, archaeal-type / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / Ribosomal protein L23 ...Tetratricopeptide repeat protein 5, OB fold domain / TTC5, OB fold domain superfamily / Tetratricopeptide repeat protein 5 OB fold domain / Ribosomal protein L6, N-terminal / Ribosomal protein L6, N-terminal domain / Ribosomal protein L30e / Ribosomal protein L2, archaeal-type / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / metallochaperone-like domain / TRASH domain / Ribosomal protein L41 / Ribosomal protein L41 / 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 L10e, conserved site / Ribosomal protein L44e signature. / Ribosomal protein L10e signature. / Ribosomal protein L10e / : / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L44e / Ribosomal protein L44 / : / 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. / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein L30e signature 2. / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal L27e protein family / Ribosomal protein L36e signature. / Ribosomal protein L30e, conserved site / Ribosomal protein L39e, conserved site / Ribosomal protein L39e signature. / Ribosomal protein L35Ae, conserved site / Ribosomal protein L35Ae signature. / : / TPR repeat region circular profile. / Ribosomal protein L34Ae / Ribosomal protein L34e / Ribosomal Protein L6, KOW domain / Ribosomal protein L30/YlxQ / 60S ribosomal protein L35 / Ribosomal protein L6e / 60S ribosomal protein L6E / Ribosomal protein L7, eukaryotic / Ribosomal protein L30, N-terminal / Ribosomal protein L31e, conserved site / Ribosomal L30 N-terminal domain / Ribosomal protein L31e signature. / Ribosomal protein L37ae / Ribosomal L37ae protein family / Ribosomal protein L36e / Ribosomal protein L36e domain superfamily / Ribosomal protein L36e / Ribosomal protein L14e domain / Ribosomal protein L14 / Ribosomal protein L35A / Ribosomal protein L35Ae / Ribosomal protein L39e / Ribosomal protein L39e domain superfamily / Ribosomal protein L35A superfamily / Ribosomal L39 protein / Ribosomal protein L32e, conserved site / Ribosomal protein L32e signature. / Ribosomal protein L5 eukaryotic/L18 archaeal / Ribosomal large subunit proteins 60S L5, and 50S L18 / Ribosomal protein L6, conserved site-2 / Ribosomal protein L6 signature 2. / Ribosomal protein L14 / Ribosomal protein L14, KOW motif / TPR repeat profile. / Ribosomal protein L15e, conserved site / Ribosomal protein L15e signature. / Ribosomal protein L31e / Ribosomal protein L31e domain superfamily / Ribosomal protein L31e / Ribosomal_L31e / Ribosomal protein L21e / Ribosomal protein L21e, conserved site / Ribosomal protein L21 superfamily / Ribosomal protein L21e / Ribosomal protein L21e signature. / Ribosomal protein L22/L17, eukaryotic/archaeal Similarity search - Domain/homology
Small ribosomal subunit protein eS32 / Large ribosomal subunit protein uL16 / 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 ...Small ribosomal subunit protein eS32 / Large ribosomal subunit protein uL16 / 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 uL11 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL24 / 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 uL3 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein eL36 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein eL27 / Large ribosomal subunit protein eL38 / Large ribosomal subunit protein eL42 / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein eL28 / Large ribosomal subunit protein eL34 / Tetratricopeptide repeat protein 5 / Large ribosomal subunit protein eL37 Similarity search - Component
Biological species
Oryctolagus cuniculus (rabbit) / Homo sapiens (human)
Method
single particle reconstruction / cryo EM / Resolution: 3.11 Å
Journal: Science / Year: 2020 Title: TTC5 mediates autoregulation of tubulin via mRNA degradation. Authors: Zhewang Lin / Ivana Gasic / Viswanathan Chandrasekaran / Niklas Peters / Sichen Shao / Timothy J Mitchison / Ramanujan S Hegde / Abstract: Tubulins play crucial roles in cell division, intracellular traffic, and cell shape. Tubulin concentration is autoregulated by feedback control of messenger RNA (mRNA) degradation via an unknown ...Tubulins play crucial roles in cell division, intracellular traffic, and cell shape. Tubulin concentration is autoregulated by feedback control of messenger RNA (mRNA) degradation via an unknown mechanism. We identified tetratricopeptide protein 5 (TTC5) as a tubulin-specific ribosome-associating factor that triggers cotranslational degradation of tubulin mRNAs in response to excess soluble tubulin. Structural analysis revealed that TTC5 binds near the ribosome exit tunnel and engages the amino terminus of nascent tubulins. TTC5 mutants incapable of ribosome or nascent tubulin interaction abolished tubulin autoregulation and showed chromosome segregation defects during mitosis. Our findings show how a subset of mRNAs can be targeted for coordinated degradation by a specificity factor that recognizes the nascent polypeptides they encode.
History
Deposition
Oct 15, 2019
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Header (metadata) release
Nov 27, 2019
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Map release
Nov 27, 2019
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Update
Nov 13, 2024
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Current status
Nov 13, 2024
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Entire : Rabbit 80S ribosome synthesizing beta-tubulin in complex with TTC5
Entire
Name: Rabbit 80S ribosome synthesizing beta-tubulin in complex with TTC5
Components
Complex: Rabbit 80S ribosome synthesizing beta-tubulin in complex with TTC5
Complex: Ribosome
Protein or peptide: Ribosomal protein L8
Protein or peptide: uL3
Protein or peptide: uL4
Protein or peptide: 60S ribosomal protein L5
Protein or peptide: 60S ribosomal protein L6
Protein or peptide: Ul30
Protein or peptide: eL8
Protein or peptide: uL6
Protein or peptide: 60S ribosomal protein L10
Protein or peptide: Ribosomal protein L11
Protein or peptide: eL13
Protein or peptide: Ribosomal protein L14
Protein or peptide: Ribosomal protein L15
Protein or peptide: uL13
Protein or peptide: uL22
Protein or peptide: eL18
Protein or peptide: eL19
Protein or peptide: eL20
Protein or peptide: eL21
Protein or peptide: eL22
Protein or peptide: Ribosomal protein L23
Protein or peptide: eL24
Protein or peptide: uL23
Protein or peptide: Ribosomal protein L26
Protein or peptide: 60S ribosomal protein L27
Protein or peptide: uL15
Protein or peptide: eL29
Protein or peptide: eL30
Protein or peptide: eL31
Protein or peptide: eL32
Protein or peptide: eL33
Protein or peptide: eL34
Protein or peptide: uL29
Protein or peptide: 60S ribosomal protein L36
Protein or peptide: Ribosomal protein L37
Protein or peptide: eL38
Protein or peptide: eL39
Protein or peptide: eL40
Protein or peptide: 60s ribosomal protein l41
Protein or peptide: eL42
Protein or peptide: eL43
Protein or peptide: eL28
Protein or peptide: uL10
Protein or peptide: Ribosomal protein L12
RNA: P-site tRNA
RNA: 28S ribosomal RNA
RNA: 5S ribosomal RNA
RNA: 5.8S ribosomal RNA
Protein or peptide: Nascent polypeptide-associated complex subunit alpha N-terminal region
Protein or peptide: Nascent polypeptide-associated complex subunit alpha
Protein or peptide: Transcription factor BTF3
Protein or peptide: Tubulin Beta
Complex: Tetratricopeptide repeat protein 5
Protein or peptide: Tetratricopeptide repeat protein 5
Ligand: MAGNESIUM ION
Ligand: ZINC ION
+
Supramolecule #1: Rabbit 80S ribosome synthesizing beta-tubulin in complex with TTC5
Supramolecule
Name: Rabbit 80S ribosome synthesizing beta-tubulin in complex with TTC5 type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#53 Details: The 40S is not modelled because it has been signal-subtracted.
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