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Yorodumi- EMDB-21984: Structure of MZT1/GCP3-NHD and MZT1/GCP6-NHD in the gamma-TuRC lu... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-21984 | |||||||||||||||
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Title | Structure of MZT1/GCP3-NHD and MZT1/GCP6-NHD in the gamma-TuRC lumenal bridge | |||||||||||||||
Map data | Focused refinement %u03B3-TuRC density map corresponding to the lumenal bridge | |||||||||||||||
Sample |
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Keywords | gamma-TuRC / lumenal bridge / MZT1 / GCP / STRUCTURAL PROTEIN | |||||||||||||||
Function / homology | Function and homology information microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / equatorial microtubule organizing center / gamma-tubulin ring complex / interphase microtubule organizing center / polar microtubule / gamma-tubulin complex / microtubule nucleation / gamma-tubulin binding / mitotic spindle assembly ...microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / equatorial microtubule organizing center / gamma-tubulin ring complex / interphase microtubule organizing center / polar microtubule / gamma-tubulin complex / microtubule nucleation / gamma-tubulin binding / mitotic spindle assembly / single fertilization / spindle assembly / cytoplasmic microtubule organization / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / centriole / meiotic cell cycle / structural constituent of cytoskeleton / spindle / spindle pole / mitotic cell cycle / microtubule binding / microtubule / centrosome / structural molecule activity / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||||||||
Authors | Wieczorek M / Huang T-L | |||||||||||||||
Funding support | United States, 4 items
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Citation | Journal: Cell Rep / Year: 2020 Title: MZT Proteins Form Multi-Faceted Structural Modules in the γ-Tubulin Ring Complex. Authors: Michal Wieczorek / Tzu-Lun Huang / Linas Urnavicius / Kuo-Chiang Hsia / Tarun M Kapoor / Abstract: Microtubule organization depends on the γ-tubulin ring complex (γ-TuRC), a ∼2.3-MDa nucleation factor comprising an asymmetric assembly of γ-tubulin and GCP2-GCP6. However, it is currently ...Microtubule organization depends on the γ-tubulin ring complex (γ-TuRC), a ∼2.3-MDa nucleation factor comprising an asymmetric assembly of γ-tubulin and GCP2-GCP6. However, it is currently unclear how the γ-TuRC-associated microproteins MZT1 and MZT2 contribute to the structure and regulation of the holocomplex. Here, we report cryo-EM structures of MZT1 and MZT2 in the context of the native human γ-TuRC. MZT1 forms two subcomplexes with the N-terminal α-helical domains of GCP3 or GCP6 (GCP-NHDs) within the γ-TuRC "lumenal bridge." We determine the X-ray structure of recombinant MZT1/GCP6-NHD and find it is similar to that within the native γ-TuRC. We identify two additional MZT/GCP-NHD-like subcomplexes, one of which is located on the outer face of the γ-TuRC and comprises MZT2 and GCP2-NHD in complex with a centrosomin motif 1 (CM1)-containing peptide. Our data reveal how MZT1 and MZT2 establish multi-faceted, structurally mimetic "modules" that can expand structural and regulatory interfaces in the γ-TuRC. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_21984.map.gz | 18.6 MB | EMDB map data format | |
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Header (meta data) | emd-21984-v30.xml emd-21984.xml | 13.2 KB 13.2 KB | Display Display | EMDB header |
Images | emd_21984.png | 53.5 KB | ||
Filedesc metadata | emd-21984.cif.gz | 6.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-21984 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-21984 | HTTPS FTP |
-Validation report
Summary document | emd_21984_validation.pdf.gz | 405.4 KB | Display | EMDB validaton report |
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Full document | emd_21984_full_validation.pdf.gz | 405 KB | Display | |
Data in XML | emd_21984_validation.xml.gz | 6.9 KB | Display | |
Data in CIF | emd_21984_validation.cif.gz | 7.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21984 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21984 | HTTPS FTP |
-Related structure data
Related structure data | 6x0uMC 6m33C 6x0vC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_21984.map.gz / Format: CCP4 / Size: 190.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Focused refinement %u03B3-TuRC density map corresponding to the lumenal bridge | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.036 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : gamma-TuRC lumenal bridge
Entire | Name: gamma-TuRC lumenal bridge |
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Components |
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-Supramolecule #1: gamma-TuRC lumenal bridge
Supramolecule | Name: gamma-TuRC lumenal bridge / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Gamma-tubulin complex component 3
Macromolecule | Name: Gamma-tubulin complex component 3 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 103.710102 KDa |
Sequence | String: MATPDQKSPN VLLQNLCCRI LGRSEADVAQ QFQYAVRVIG SNFAPTVERD EFLVAEKIKK ELIRQRREAD AALFSELHRK LHSQGVLKN KWSILYLLLS LSEDPRRQPS KVSSYATLFA QALPRDAHST PYYYARPQTL PLSYQDRSAQ SAQSSGSVGS S GISSIGLC ...String: MATPDQKSPN VLLQNLCCRI LGRSEADVAQ QFQYAVRVIG SNFAPTVERD EFLVAEKIKK ELIRQRREAD AALFSELHRK LHSQGVLKN KWSILYLLLS LSEDPRRQPS KVSSYATLFA QALPRDAHST PYYYARPQTL PLSYQDRSAQ SAQSSGSVGS S GISSIGLC ALSGPAPAPQ SLLPGQSNQA PGVGDCLRQQ LGSRLAWTLT ANQPSSQATT SKGVPSAVSR NMTRSRREGD TG GTMEITE AALVRDILYV FQGIDGKNIK MNNTENCYKV EGKANLSRSL RDTAVRLSEL GWLHNKIRRY TDQRSLDRSF GLV GQSFCA ALHQELREYY RLLSVLHSQL QLEDDQGVNL GLESSLTLRR LLVWTYDPKI RLKTLAALVD HCQGRKGGEL ASAV HAYTK TGDPYMRSLV QHILSLVSHP VLSFLYRWIY DGELEDTYHE FFVASDPTVK TDRLWHDKYT LRKSMIPSFM TMDQS RKVL LIGKSINFLH QVCHDQTPTT KMIAVTKSAE SPQDAADLFT DLENAFQGKI DAAYFETSKY LLDVLNKKYS LLDHMQ AMR RYLLLGQGDF IRHLMDLLKP ELVRPATTLY QHNLTGILET AVRATNAQFD SPEILRRLDV RLLEVSPGDT GWDVFSL DY HVDGPIATVF TRECMSHYLR VFNFLWRAKR MEYILTDIRK GHMCNAKLLR NMPEFSGVLH QCHILASEMV HFIHQMQY Y ITFEVLECSW DELWNKVQQA QDLDHIIAAH EVFLDTIISR CLLDSDSRAL LNQLRAVFDQ IIELQNAQDA IYRAALEEL QRRLQFEEKK KQREIEGQWG VTAAEEEEEN KRIGEFKESI PKMCSQLRIL THFYQGIVQQ FLVLLTTSSD ESLRFLSFRL DFNEHYKAR EPRLRVSLGT RGRRSSHT UniProtKB: Gamma-tubulin complex component 3 |
-Macromolecule #2: Gamma-tubulin complex component 6
Macromolecule | Name: Gamma-tubulin complex component 6 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 200.733641 KDa |
Sequence | String: MASITQLFDD LCEALLPAAK THLGQRSVNR KRAKRSLKKV AYNALFTNLF QDETQQLQPD MSKLPARNKI LMLSFDLRVG GLGPKADRL EELVEELEAA PCCPLLEVGS VLDLLVQLAG SGPPQVLPRK RDYFLNNKHV GRNVPYSGYD CDDLSVFEMD V QSLISREE ...String: MASITQLFDD LCEALLPAAK THLGQRSVNR KRAKRSLKKV AYNALFTNLF QDETQQLQPD MSKLPARNKI LMLSFDLRVG GLGPKADRL EELVEELEAA PCCPLLEVGS VLDLLVQLAG SGPPQVLPRK RDYFLNNKHV GRNVPYSGYD CDDLSVFEMD V QSLISREE CLCHSMIQET LQVMEAAPGT GLPTVGLFSF GDPCGDRFER DTRVSLFGAL VHSRTYDMDV RLGLPPVPDN AD LSGLAIK VPPSVDQWED EGFQSASNLT PDSQSEPSVT PDVDLWEAAL TYEASKRRCW ERVGCPPGHR EEPYLTEAGR DAF DKFCRL HQGELQLLAG GVLQAPQPVL VKECELVKDV LNVLIGVVSA TFSLCQPAQA FVVKRGVHVS GASPESISSL LSEV AEYGT CYTRLSHFSL QPVLDSLYSK GLVFQAFTSG LRRYLQYYRA CVLSTPPTLS LLTIGFLFKK LGRQLRYLAE LCGVG AVLP GTCGGGPRAA FPTGVKLLSY LYQEALHNCS NEHYPVLLSL LKTSCEPYTR FIHDWVYSGV FRDAYGEFMI QVNHEY LSF RDKLYWTHGY VLISKEVEDC VPVFLKHIAH DIYVCGKTIN LLKLCCPRHY LCWSDVPVPR ISVIFSLEEL KEIEKDC AV YVGRMERVAR HSSVSKEEKE LRMEIAKQEL IAHAREAASR VLSALSDRQM SERMALDARK REQFQRLKEQ FVKDQERR Q AARQEELDDD FSYARELRDR ERRLKSLEEE LERKARQALV DHYSKLSAEA ARREQKALWR IQRHRLESAR LRFLLEDEK HIQEMLKAVS EAHQPQEPPD VLLSVHPQVT SPGPEHPEGG QGCDSGSAEQ HSPAWDGWNR PGLLTPQPLK PLAVGAGGRG LQQAEGARP FSDSLSIGDF LPVGPGAEPS VQTGMVPLLE VALQTINLDL PPSAPGEAPA AASTQPSRPQ EYDFSTVLRP A VATSPAPG PLQAAECSLG SSGLQLWEDS CGKMDACGSA SRETLLPSHP PRRAALEEGS SQPTERLFGQ VSGGGLPTGD YA SEIAPTR PRWNTHGHVS DASIRVGENV SDVAPTQPRW NTHGHVSNAS ISLGESVSDV APTRPRWNIH GHVSNASIRV GEN VSDVAP TRPRWNTHGH VSNASIRVGE NVSDVAPTRP RWNTHGHVSD ASISLGESVS DMAPARPRWN THGHVSDASI SLGE SVSDM APTRPRWNTH GHVSDTSIRV GENVSDVAPI RSRCNTHGHV SDASISLGEP VSDVVSTRPR WNTHVPIPPP HMVLG ALSP EAEPNTPRPQ QSPPGHTSQS ALSLGAQSTV LDCGPRLPVE VGPSLSSPSS GCGEGSISVG ENVSDVAPTQ PWWPNT PGD SVSEELGPGR SGDTEDLSPN WPLNSQEDTA AQSSPGRGEE AEASAAEAQG GEQAYLAGLA GQYHLERYPD SYESMSE PP IAHLLRPVLP RAFAFPVDPQ VQSAADETAV QLSELLTLPV LMKRSITAPL AAHISLVNKA AVDYFFVELH LEAHYEAL R HFLLMEDGEF AQSLSDLLFE KLGAGQTPGE LLNPLVLNSV LSKALQCSLH GDTPHASNLS LALKYLPEVF APNAPDVLS CLELRYKVDW PLNIVITEGC VSKYSGVFSF LLQLKLMMWA LKDVCFHLKR TALLSHMAGS VQFRQLQLFK HEMQHFVKVI QGYIANQIL HVTWCEFRAR LATVGDLEEI QRAHAEYLHK AVFRGLLTEK AAPVMNVIHS IFSLVLKFRS QLISQAWGPP G GPRGAEHP NFALMQQSYN TFKYYSHFLF KVVTKLVNRG YQPHLEDFLL RINFNNYYQD A UniProtKB: Gamma-tubulin complex component 6 |
-Macromolecule #3: Mitotic-spindle organizing protein 1
Macromolecule | Name: Mitotic-spindle organizing protein 1 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 8.485724 KDa |
Sequence | String: MASSSGAGAA AAAAAANLNA VRETMDVLLE ISRILNTGLD METLSICVRL CEQGINPEAL SSVIKELRKA TEALKAAENM TS UniProtKB: Mitotic-spindle organizing protein 1 |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 45.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 419138 |
Initial angle assignment | Type: OTHER |
Final angle assignment | Type: OTHER |