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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | Microtubule-TTLL6 map | |||||||||
Map data | Map of TTLL6 bound to alpha1B and betaI and betaIVb microtubules | |||||||||
Sample |
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Keywords | tubulin post-translational modifications / microtubules / TTLL / LIGASE | |||||||||
| Function / homology | Function and homology informationpositive regulation of cilium movement / protein-glutamic acid ligase activity / tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / Carboxyterminal post-translational modifications of tubulin / protein polyglutamylation / 9+0 non-motile cilium / microtubule severing / regulation of cilium beat frequency involved in ciliary motility ...positive regulation of cilium movement / protein-glutamic acid ligase activity / tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / Carboxyterminal post-translational modifications of tubulin / protein polyglutamylation / 9+0 non-motile cilium / microtubule severing / regulation of cilium beat frequency involved in ciliary motility / 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 / 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 / microtubule bundle formation / Kinesins / GTPase activating protein binding / COPI-independent Golgi-to-ER retrograde traffic / Assembly and cell surface presentation of NMDA receptors / COPI-dependent Golgi-to-ER retrograde traffic / natural killer cell mediated cytotoxicity / nuclear envelope lumen / regulation of synapse organization / Recycling pathway of L1 / MHC class I protein binding / RHOH GTPase cycle / RHO GTPases activate IQGAPs / microtubule-based process / Hedgehog 'off' state / COPI-mediated anterograde transport / Activation of AMPK downstream of NMDARs / intercellular bridge / spindle assembly / cytoplasmic microtubule / 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 / MHC class II antigen presentation / cellular response to interleukin-4 / tubulin binding / 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 / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / HCMV Early Events / Aggrephagy / The role of GTSE1 in G2/M progression after G2 checkpoint / mitotic spindle / Separation of Sister Chromatids / azurophil granule lumen / Regulation of PLK1 Activity at G2/M Transition / 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 / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||
Authors | Mahalingan KK / Grotjahn D / Li Y / Lander GC / Zehr EA / Roll-Mecak A | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nat Chem Biol / Year: 2024Title: Structural basis for α-tubulin-specific and modification state-dependent glutamylation. Authors: Kishore K Mahalingan / Danielle A Grotjahn / Yan Li / Gabriel C Lander / Elena A Zehr / Antonina Roll-Mecak / ![]() Abstract: Microtubules have spatiotemporally complex posttranslational modification patterns. Tubulin tyrosine ligase-like (TTLL) enzymes introduce the most prevalent modifications on α-tubulin and β-tubulin. ...Microtubules have spatiotemporally complex posttranslational modification patterns. Tubulin tyrosine ligase-like (TTLL) enzymes introduce the most prevalent modifications on α-tubulin and β-tubulin. How TTLLs specialize for specific substrate recognition and ultimately modification-pattern generation is largely unknown. TTLL6, a glutamylase implicated in ciliopathies, preferentially modifies tubulin α-tails in microtubules. Cryo-electron microscopy, kinetic analysis and single-molecule biochemistry reveal an unprecedented quadrivalent recognition that ensures simultaneous readout of microtubule geometry and posttranslational modification status. By binding to a β-tubulin subunit, TTLL6 modifies the α-tail of the longitudinally adjacent tubulin dimer. Spanning two tubulin dimers along and across protofilaments (PFs) ensures fidelity of recognition of both the α-tail and the microtubule. Moreover, TTLL6 reads out and is stimulated by glutamylation of the β-tail of the laterally adjacent tubulin dimer, mediating crosstalk between α-tail and β-tail. This positive feedback loop can generate localized microtubule glutamylation patterns. Our work uncovers general principles that generate tubulin chemical and topographic complexity. | |||||||||
| History |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_41018.map.gz | 11.1 MB | EMDB map data format | |
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| Header (meta data) | emd-41018-v30.xml emd-41018.xml | 27.8 KB 27.8 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_41018_fsc.xml | 20.1 KB | Display | FSC data file |
| Images | emd_41018.png | 128.6 KB | ||
| Masks | emd_41018_msk_1.map | 699 MB | Mask map | |
| Filedesc metadata | emd-41018.cif.gz | 8.3 KB | ||
| Others | emd_41018_additional_1.map.gz emd_41018_half_map_1.map.gz emd_41018_half_map_2.map.gz | 561.7 MB 564.1 MB 564.9 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-41018 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-41018 | HTTPS FTP |
-Validation report
| Summary document | emd_41018_validation.pdf.gz | 695.4 KB | Display | EMDB validaton report |
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| Full document | emd_41018_full_validation.pdf.gz | 694.9 KB | Display | |
| Data in XML | emd_41018_validation.xml.gz | 27.8 KB | Display | |
| Data in CIF | emd_41018_validation.cif.gz | 37.7 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-41018 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-41018 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8t42MC ![]() 8u3zC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_41018.map.gz / Format: CCP4 / Size: 699 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Map of TTLL6 bound to alpha1B and betaI and betaIVb microtubules | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.15 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Mask #1
| File | emd_41018_msk_1.map | ||||||||||||
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| Density Histograms |
-Additional map: Map of TTLL6 bound to alpha1B and betaI...
| File | emd_41018_additional_1.map | ||||||||||||
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| Annotation | Map of TTLL6 bound to alpha1B and betaI and betaIVb microtubules that was not post-processes | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Second half-map of TTLL6 bound to alpha1B and...
| File | emd_41018_half_map_1.map | ||||||||||||
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| Annotation | Second half-map of TTLL6 bound to alpha1B and betaI and betaIVb microtubules | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: First half-map of TTLL6 bound to alpha1B and...
| File | emd_41018_half_map_2.map | ||||||||||||
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| Annotation | First half-map of TTLL6 bound to alpha1B and betaI and betaIVb microtubules | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
-Entire : TTLL6 bound to unmodified human microtubules
| Entire | Name: TTLL6 bound to unmodified human microtubules |
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| Components |
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-Supramolecule #1: TTLL6 bound to unmodified human microtubules
| Supramolecule | Name: TTLL6 bound to unmodified human microtubules / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 Details: Microtubules were decorated with TTLL6 on electron microscopy grids |
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| Molecular weight | Theoretical: 300 KDa |
-Supramolecule #2: Tubulin alpha-1B chain, Tubulin betaI chain
| Supramolecule | Name: Tubulin alpha-1B chain, Tubulin betaI chain / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#2 |
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| Source (natural) | Organism: Homo sapiens (human) / Organ: kidney / Location in cell: cytoplasm |
-Supramolecule #3: Tubulin polyglutamylase TTLL6
| Supramolecule | Name: Tubulin polyglutamylase TTLL6 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #3 |
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| Source (natural) | Organism: ![]() |
-Macromolecule #1: Tubulin alpha-1B chain
| Macromolecule | Name: Tubulin alpha-1B chain / type: protein_or_peptide / ID: 1 / Details: a-tubulin from tsA201 cell line / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) / Organ: kidney / Tissue: kidney / Cell: Epithelial-like |
| Molecular weight | Theoretical: 50.204445 KDa |
| Sequence | String: MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFLVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE ...String: MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFLVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE FSIYPAPQVS TAVVEPYNSI LTTHTTLEHS DCAFMVDNEA IYDICRRNLD IERPTYTNLN RLISQIVSSI TA SLRFDGA LNVDLTEFQT NLVPYPRIHF PLATYAPVIS AEKAYHEQLS VAEITNACFE PANQMVKCDP RHGKYMACCL LYR GDVVPK DVNAAIATIK TKRSIQFVDW CPTGFKVGIN YQPPTVVPGG DLAKVQRAVC MLSNTTAIAE AWARLDHKFD LMYA KRAFV HWYVGEGMEE GEFSEAREDM AALEKDYEEV GVDSVEGEGE EEGEEY UniProtKB: Tubulin alpha-1B chain |
-Macromolecule #2: Tubulin beta chain
| Macromolecule | Name: Tubulin beta chain / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) / Organ: kidney / Tissue: kidney / Cell: Epithelial-like |
| Molecular weight | Theoretical: 49.717629 KDa |
| Sequence | String: MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGTYHGDS DLQLDRISVY YNEATGGKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKEAESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS ...String: MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGTYHGDS DLQLDRISVY YNEATGGKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKEAESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS VVPSPKVSDT VVEPYNATLS VHQLVENTDE TYCIDNEALY DICFRTLKLT TPTYGDLNHL VSATMSGVTT CL RFPGQLN ADLRKLAVNM VPFPRLHFFM PGFAPLTSRG SQQYRALTVP ELTQQVFDAK NMMAACDPRH GRYLTVAAVF RGR MSMKEV DEQMLNVQNK NSSYFVEWIP NNVKTAVCDI PPRGLKMAVT FIGNSTAIQE LFKRISEQFT AMFRRKAFLH WYTG EGMDE MEFTEAESNM NDLVSEYQQY QDATAEEEED FGEEAEEEA UniProtKB: Tubulin beta chain |
-Macromolecule #3: Tubulin polyglutamylase TTLL6
| Macromolecule | Name: Tubulin polyglutamylase TTLL6 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO EC number: Ligases; Forming carbon-nitrogen bonds; Acid-amino-acid ligases (peptide synthases) |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 59.145621 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MLQCLTSESE EGAEEREESS TEDLEELKEF VTLAFVRENT QKRLQNAQQH GKKKRKKKRL VINLSNCRYD SVRRAAQQYG LREAGDNDD WTLYWTDYSV SLERVMEMKS YQKINHFPGM SEICRKDLLA RNMSRMLKLF PKDFHFFPRT WCLPADWGDL Q TYSRTRKN ...String: MLQCLTSESE EGAEEREESS TEDLEELKEF VTLAFVRENT QKRLQNAQQH GKKKRKKKRL VINLSNCRYD SVRRAAQQYG LREAGDNDD WTLYWTDYSV SLERVMEMKS YQKINHFPGM SEICRKDLLA RNMSRMLKLF PKDFHFFPRT WCLPADWGDL Q TYSRTRKN KTYICKPDSG CQGRGIFITR SVKEIKPGED MICQLYISKP FIIDGFKFDL RVYVLVTSCD PLRVFVYNEG LA RFATTSY SHPNLDNLDE ICMHLTNYSI NKHSSNFVQD AFSGSKRKLS TFNSYMKTHG YDVEQIWRGI EDVIIKTLIS AHP VIKHNY HTCFPSHTLN SACFEILGFD ILLDRKLKPW LLEVNHSPSF STDSKLDKEV KDSLLYDALV LINLGNCDKK KVLE EERQR GRFLQQCPNR EIRLEEVKGF QAMRLQKTEE YEKKNCGGFR LIYPGLNLEK YDKFFQDNSS LFQNTVASRA RELYA RQLI QELRQKQEKK VFLKKARKA UniProtKB: Tubulin polyglutamylase TTLL6 |
-Macromolecule #4: GUANOSINE-5'-TRIPHOSPHATE
| Macromolecule | Name: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 2 / Formula: GTP |
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| Molecular weight | Theoretical: 523.18 Da |
| Chemical component information | ![]() ChemComp-GTP: |
-Macromolecule #5: MAGNESIUM ION
| Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 4 / Formula: MG |
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| Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #6: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
| Macromolecule | Name: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER / type: ligand / ID: 6 / Number of copies: 2 / Formula: G2P |
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| Molecular weight | Theoretical: 521.208 Da |
| Chemical component information | ![]() ChemComp-G2P: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | filament |
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Sample preparation
| Concentration | 0.1 mg/mL | ||||||||||||||||||
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| Buffer | pH: 7 Component:
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| Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Support film - Film thickness: 100 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR | ||||||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 303 K / Instrument: FEI VITROBOT MARK IV Details: The sample was blotted with Whatman #5 blotting paper on both sides of the grid for 3 s with a blot offset of -1 using a Vitrobot Mark IV (Thermo Fisher Scientific) with a chamber set to 30C ...Details: The sample was blotted with Whatman #5 blotting paper on both sides of the grid for 3 s with a blot offset of -1 using a Vitrobot Mark IV (Thermo Fisher Scientific) with a chamber set to 30C at 100% humidity and subsequently plunged into liquid ethane.. | ||||||||||||||||||
| Details | TTLL6 decoration of microtubule was heterogenous |
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Electron microscopy
| Microscope | FEI TALOS ARCTICA |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 1-39 / Number real images: 2771 / Average exposure time: 9.75 sec. / Average electron dose: 42.0 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 36000 |
| Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Initial model |
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| Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Target criteria: Cross-correlation | ||||||||
| Output model | ![]() PDB-8t42: |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation
































Z (Sec.)
Y (Row.)
X (Col.)























































FIELD EMISSION GUN



