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Open data
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Basic information
Entry | Database: PDB / ID: 9hq4 | ||||||
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Title | TTLL11 bound to microtubule | ||||||
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![]() | LIGASE / TTLL11 / polyglutamylase / tubulin / microtubule | ||||||
Function / homology | ![]() tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / microtubule severing / Ligases; Forming carbon-nitrogen bonds; Acid-amino-acid ligases (peptide synthases) / odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane ...tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / microtubule severing / Ligases; Forming carbon-nitrogen bonds; Acid-amino-acid ligases (peptide synthases) / odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / haloalkane dehalogenase / haloalkane dehalogenase activity / Carboxyterminal post-translational modifications of tubulin / Intraflagellar transport / Sealing of the nuclear envelope (NE) by ESCRT-III / Formation of tubulin folding intermediates by CCT/TriC / Gap junction assembly / Kinesins / GTPase activating protein binding / Assembly and cell surface presentation of NMDA receptors / COPI-independent Golgi-to-ER retrograde traffic / COPI-dependent Golgi-to-ER retrograde traffic / natural killer cell mediated cytotoxicity / regulation of synapse organization / nuclear envelope lumen / Recycling pathway of L1 / MHC class I protein binding / RHOH GTPase cycle / RHO GTPases activate IQGAPs / microtubule-based process / intercellular bridge / Hedgehog 'off' state / spindle assembly / Activation of AMPK downstream of NMDARs / cytoplasmic microtubule / COPI-mediated anterograde transport / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / tubulin binding / MHC class II antigen presentation / cellular response to interleukin-4 / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Resolution of Sister Chromatid Cohesion / AURKA Activation by TPX2 / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / PKR-mediated signaling / structural constituent of cytoskeleton / protein modification process / Aggrephagy / response to toxic substance / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / HCMV Early Events / Regulation of PLK1 Activity at G2/M Transition / mitotic spindle / azurophil granule lumen / mitotic cell cycle / double-stranded RNA binding / microtubule cytoskeleton / cell body / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Potential therapeutics for SARS / microtubule / cytoskeleton / cilium / ciliary basal body / membrane raft / protein domain specific binding / cell division / GTPase activity / ubiquitin protein ligase binding / Neutrophil degranulation / GTP binding / protein-containing complex binding / structural molecule activity / protein-containing complex / extracellular exosome / extracellular region / ATP binding / metal ion binding / nucleus / membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.28 Å | ||||||
![]() | Barinka, C. / Campbell, J. / Desfosses, A. / Gutsche, I. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Mechanistic insights into TTLL11 polyglutamylase-mediated primary tubulin chain elongation. Authors: Jana Campbell / Miroslava Vosahlikova / Samar Ismail / Margareta Volnikova / Lucia Motlova / Julia Kudlacova / Kseniya Ustinova / Ivan Snajdr / Zora Novakova / Miroslav Basta / Irina Gutsche ...Authors: Jana Campbell / Miroslava Vosahlikova / Samar Ismail / Margareta Volnikova / Lucia Motlova / Julia Kudlacova / Kseniya Ustinova / Ivan Snajdr / Zora Novakova / Miroslav Basta / Irina Gutsche / Marie-Jo Moutin / Ambroise Desfosses / Cyril Barinka / ![]() ![]() ![]() Abstract: Microtubules (MTs) undergo diverse posttranslational modifications that regulate their structural and functional properties. Among these, polyglutamylation-a dominant and conserved modification ...Microtubules (MTs) undergo diverse posttranslational modifications that regulate their structural and functional properties. Among these, polyglutamylation-a dominant and conserved modification targeting unstructured tubulin C-terminal tails-plays a pivotal role in defining the tubulin code. Here, we describe a mechanism by which tubulin tyrosine ligase-like 11 (TTLL11) expands and diversifies the code. Cryo-electron microscopy revealed a unique bipartite MT recognition strategy wherein TTLL11 binding and catalytic domains engage adjacent MT protofilaments. Biochemical and cellular assays identified previously uncharacterized polyglutamylation patterns, showing that TTLL11 directly extends the primary polypeptide chains of α- and β-tubulin in vitro, challenging the prevailing paradigms emphasizing lateral branching. Moreover, cell-based and in vivo data suggest a cross-talk between polyglutamylation and the detyrosination/tyrosination cycle likely linked to the TTLL11-mediated elongation of the primary α-tubulin chain. These findings unveil an unrecognized layer of complexity within the tubulin code and offer mechanistic insights into the molecular basis of functional specialization of MT cytoskeleton. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 463.8 KB | Display | ![]() |
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PDB format | ![]() | 365.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 84.2 KB | Display | |
Data in CIF | ![]() | 123.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 52338MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Assembly
Deposited unit | ![]()
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Components
-Protein , 3 types, 5 molecules ACBDE
#1: Protein | Mass: 50204.445 Da / Num. of mol.: 2 / Source method: isolated from a natural source Details: Native tubulin isolated from HEK 293T cells, unaligned regions are intrinsicly disordered Source: (natural) ![]() #2: Protein | Mass: 49717.629 Da / Num. of mol.: 2 / Source method: isolated from a natural source Details: The C-terminal part of tubulin is intrinsicaly disordered thus not visible in the structure. Source: (natural) ![]() #3: Protein | | Mass: 111410.188 Da / Num. of mol.: 1 / Mutation: E441G Source method: isolated from a genetically manipulated source Details: The original protein contains N-terminal Halo tag on a flexible linker so it is not visible in the map or included in the model. TTLL11 containes several instriscally disordered regions that ...Details: The original protein contains N-terminal Halo tag on a flexible linker so it is not visible in the map or included in the model. TTLL11 containes several instriscally disordered regions that are left out from the model. Source: (gene. exp.) ![]() ![]() Gene: TTLL11, C9orf20 / Cell line (production host): HEK293T / Production host: ![]() References: UniProt: P0A3G4, UniProt: Q8NHH1, Ligases; Forming carbon-nitrogen bonds; Acid-amino-acid ligases (peptide synthases) |
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-Non-polymers , 3 types, 10 molecules 




#4: Chemical | ChemComp-G2P / #5: Chemical | ChemComp-MG / #6: Chemical | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Complex of TTLL11 and two tubulin dimers / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7 Details: 40 mM Tris-HCl, pH 7.0, 1 mM TCEP, 1 mM MgCl2, 5 % glycerol |
Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/1 |
Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 90 % |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 30 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 3.28 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 239587 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT | ||||||||||||||||||||||||
Atomic model building | Accession code: AF-Q8NHH1-F1-v4 / Source name: AlphaFold / Type: in silico model | ||||||||||||||||||||||||
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