[English] 日本語
Yorodumi
- EMDB-21073: Structure of the native human gamma-tubulin ring complex -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-21073
TitleStructure of the native human gamma-tubulin ring complex
Map data
Sample
  • Complex: Native human gamma-tubulin ring complex
    • Protein or peptide: x 9 types
  • Protein or peptide: x 2 types
  • Ligand: x 2 types
KeywordsTubulin / gamma-tubulin / gamma-tubulin ring complex / gTuRC / g-TuRC / GCP / GCP2 / GCP3 / GCP4 / GCP5 / GCP6 / microtubule / microtubule nucleation / single particle cryo-EM structure / STRUCTURAL PROTEIN
Function / homology
Function and homology information


equatorial microtubule organizing center / mitotic spindle microtubule / gamma-tubulin ring complex / microtubule minus-end binding / polar microtubule / gamma-tubulin complex / meiotic spindle organization / microtubule nucleation / gamma-tubulin binding / non-motile cilium ...equatorial microtubule organizing center / mitotic spindle microtubule / gamma-tubulin ring complex / microtubule minus-end binding / polar microtubule / gamma-tubulin complex / meiotic spindle organization / microtubule nucleation / gamma-tubulin binding / non-motile cilium / microtubule organizing center / pericentriolar material / cell leading edge / cytoplasmic microtubule / mitotic sister chromatid segregation / single fertilization / spindle assembly / cytoplasmic microtubule organization / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / centriole / AURKA Activation by TPX2 / mitotic spindle organization / ciliary basal body / meiotic cell cycle / condensed nuclear chromosome / neuron migration / brain development / recycling endosome / structural constituent of cytoskeleton / spindle pole / microtubule cytoskeleton organization / spindle / microtubule cytoskeleton / Regulation of PLK1 Activity at G2/M Transition / apical part of cell / mitotic cell cycle / microtubule binding / protein-containing complex assembly / microtubule / neuron projection / centrosome / GTP binding / structural molecule activity / nucleoplasm / identical protein binding / membrane / nucleus / cytoplasm / cytosol
Similarity search - Function
Gamma-tubulin complex component 6, N-terminal / Gamma-tubulin complex component 6 N-terminus / Gamma tubulin / Gamma tubulin complex component, C-terminal / Gamma-tubulin complex component, C-terminal domain superfamily / Gamma tubulin complex component C-terminal / Gamma-tubulin complex component protein / Gamma tubulin complex component protein, N-terminal / Gamma tubulin complex component N-terminal / Tubulin ...Gamma-tubulin complex component 6, N-terminal / Gamma-tubulin complex component 6 N-terminus / Gamma tubulin / Gamma tubulin complex component, C-terminal / Gamma-tubulin complex component, C-terminal domain superfamily / Gamma tubulin complex component C-terminal / Gamma-tubulin complex component protein / Gamma tubulin complex component protein, N-terminal / Gamma tubulin complex component N-terminal / Tubulin / Tubulin, C-terminal / Tubulin C-terminal domain / Tubulin, conserved site / Tubulin subunits alpha, beta, and gamma signature. / Tubulin/FtsZ family, C-terminal domain / Tubulin/FtsZ-like, C-terminal domain / Tubulin/FtsZ, C-terminal / Tubulin/FtsZ, 2-layer sandwich domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ, GTPase domain / Tubulin/FtsZ, GTPase domain superfamily
Similarity search - Domain/homology
Tubulin gamma-1 chain / Gamma-tubulin complex component 3 / Gamma-tubulin complex component 6 / Gamma-tubulin complex component 5 / Gamma-tubulin complex component 2 / Gamma-tubulin complex component 4
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.3 Å
AuthorsWieczorek M / Urnavicius L
Funding support United States, France, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35 GM130234 United States
Human Frontier Science Program (HFSP)LT000025/18-L1 France
CitationJournal: Cell / Year: 2020
Title: Asymmetric Molecular Architecture of the Human γ-Tubulin Ring Complex.
Authors: Michal Wieczorek / Linas Urnavicius / Shih-Chieh Ti / Kelly R Molloy / Brian T Chait / Tarun M Kapoor /
Abstract: The γ-tubulin ring complex (γ-TuRC) is an essential regulator of centrosomal and acentrosomal microtubule formation, yet its structure is not known. Here, we present a cryo-EM reconstruction of the ...The γ-tubulin ring complex (γ-TuRC) is an essential regulator of centrosomal and acentrosomal microtubule formation, yet its structure is not known. Here, we present a cryo-EM reconstruction of the native human γ-TuRC at ∼3.8 Å resolution, revealing an asymmetric, cone-shaped structure. Pseudo-atomic models indicate that GCP4, GCP5, and GCP6 form distinct Y-shaped assemblies that structurally mimic GCP2/GCP3 subcomplexes distal to the γ-TuRC "seam." We also identify an unanticipated structural bridge that includes an actin-like protein and spans the γ-TuRC lumen. Despite its asymmetric architecture, the γ-TuRC arranges γ-tubulins into a helical geometry poised to nucleate microtubules. Diversity in the γ-TuRC subunits introduces large (>100,000 Å) surfaces in the complex that allow for interactions with different regulatory factors. The observed compositional complexity of the γ-TuRC could self-regulate its assembly into a cone-shaped structure to control microtubule formation across diverse contexts, e.g., within biological condensates or alongside existing filaments.
History
DepositionDec 5, 2019-
Header (metadata) releaseDec 18, 2019-
Map releaseJan 1, 2020-
UpdateMar 6, 2024-
Current statusMar 6, 2024Processing site: RCSB / Status: Released

-
Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.015
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.015
  • Imaged by UCSF Chimera
  • Download
  • Surface view with fitted model
  • Atomic models: PDB-6v6s
  • Surface level: 0.015
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_21073.png

Downloads & links

-
Map

FileDownload / File: emd_21073.map.gz / Format: CCP4 / Size: 190.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.335 Å
Density
Contour LevelBy AUTHOR: 0.01 / Movie #1: 0.015
Minimum - Maximum-0.079725094 - 0.13481984
Average (Standard dev.)0.000030998304 (±0.0031128896)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions368368368
Spacing368368368
CellA=B=C: 491.28003 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.3351.3351.335
M x/y/z368368368
origin x/y/z0.0000.0000.000
length x/y/z491.280491.280491.280
α/β/γ90.00090.00090.000
start NX/NY/NZ-51-35-11
NX/NY/NZ11110799
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS368368368
D min/max/mean-0.0800.1350.000

-
Supplemental data

-
Sample components

+
Entire : Native human gamma-tubulin ring complex

EntireName: Native human gamma-tubulin ring complex
Components
  • Complex: Native human gamma-tubulin ring complex
    • Protein or peptide: Gamma-tubulin complex component 2
    • Protein or peptide: Gamma-tubulin complex component 3
    • Protein or peptide: Gamma-tubulin complex component 4
    • Protein or peptide: Gamma-tubulin complex component 5
    • Protein or peptide: Gamma-tubulin complex component 6
    • Protein or peptide: Unassigned poly-alanine chain ("staple")
    • Protein or peptide: Unassigned poly-alanine model ("CC")
    • Protein or peptide: Unassigned poly-alanine model ("HB")
    • Protein or peptide: Unassigned poly-alanine model ("Lumenal bridge helical bundles")
  • Protein or peptide: beta actin
  • Protein or peptide: Tubulin gamma-1 chain
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: GUANOSINE-5'-DIPHOSPHATE

+
Supramolecule #1: Native human gamma-tubulin ring complex

SupramoleculeName: Native human gamma-tubulin ring complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6, #8-#10
Source (natural)Organism: Homo sapiens (human)

+
Macromolecule #1: Gamma-tubulin complex component 2

MacromoleculeName: Gamma-tubulin complex component 2 / type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 105.765719 KDa
SequenceString: MSEFRIHHDV NELLSLLRVH GGDGAEVYID LLQKNRTPYV TTTVSAHSAK VKIAEFSRTP EDFLKKYDEL KSKNTRNLDP LVYLLSKLT EDKETLQYLQ QNAKERAELA AAAVGSSTTS INVPAAASKI SMQELEELRK QLGSVATGST LQQSLELKRK M LRDKQNKK ...String:
MSEFRIHHDV NELLSLLRVH GGDGAEVYID LLQKNRTPYV TTTVSAHSAK VKIAEFSRTP EDFLKKYDEL KSKNTRNLDP LVYLLSKLT EDKETLQYLQ QNAKERAELA AAAVGSSTTS INVPAAASKI SMQELEELRK QLGSVATGST LQQSLELKRK M LRDKQNKK NSGQHLPIFP AWVYERPALI GDFLIGAGIS TDTALPIVLL RWNLALSPRL KCSGVISAHC NLHLPGTLPL AS QESAVVE DLLYVLVGVD GRYVSAQPLA GRQSRTFLVD PNLDLSIREL VHRILPVAAS YSAVTRFIEE KSSFEYGQVN HAL AAAMRT LVKEHLILVS QLEQLHRQGL LSLQKLWFYI QPAMRTMDIL ASLATSVDKG ECLGGSTLSL LHDRSFSYTG DSQA QELCL YLTKAASAPY FEVLEKWIYR GIIHDPYSEF MVEEHELRKE RIQEDYNDKY WDQRYTIVQQ QIPSFLQKMA DKILS TGKY LNVVRECGHD VTCPVAKEII YTLKERAYVE QIEKAFNYAS KVLLDFLMEE KELVAHLRSI KRYFLMDQGD FFVHFM DLA EEELRKPVED ITPPRLEALL ELALRMSTAN TDPFKDDLKI DLMPHDLITQ LLRVLAIETK QEKAMAHADP TELALSG LE AFSFDYIVKW PLSLIINRKA LTRYQMLFRH MFYCKHVERQ LCSVWISNKT AKQHSLHSAQ WFAGAFTLRQ RMLNFVQN I QYYMMFEVME PTWHILEKNL KSASNIDDVL GHHTGFLDTC LKDCMLTNPE LLKVFSKLMS VCVMFTNCMQ KFTQSMKLD GELGGQTLEH STVLGLPAGA EERARKELAR KHLAEHADTV QLVSGFEATI NKFDKNFSAH LLDLLARLSI YSTSDCEHGM ASVISRLDF NGFYTERLER LSAERSQKAT PQVPVLRGPP APAPRVAVTA Q

UniProtKB: Gamma-tubulin complex component 2

+
Macromolecule #2: Gamma-tubulin complex component 3

MacromoleculeName: Gamma-tubulin complex component 3 / type: protein_or_peptide / ID: 2 / Number of copies: 5 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 103.710102 KDa
SequenceString: 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 #3: Gamma-tubulin complex component 4

MacromoleculeName: Gamma-tubulin complex component 4 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 76.179969 KDa
SequenceString: MIHELLLALS GYPGSIFTWN KRSGLQVSQD FPFLHPSETS VLNRLCRLGT DYIRFTEFIE QYTGHVQQQD HHPSQQGQGG LHGIYLRAF CTGLDSVLQP YRQALLDLEQ EFLGDPHLSI SHVNYFLDQF QLLFPSVMVV VEQIKSQKIH GCQILETVYK H SCGGLPPV ...String:
MIHELLLALS GYPGSIFTWN KRSGLQVSQD FPFLHPSETS VLNRLCRLGT DYIRFTEFIE QYTGHVQQQD HHPSQQGQGG LHGIYLRAF CTGLDSVLQP YRQALLDLEQ EFLGDPHLSI SHVNYFLDQF QLLFPSVMVV VEQIKSQKIH GCQILETVYK H SCGGLPPV RSALEKILAV CHGVMYKQLS AWMLHGLLLD QHEEFFIKQG PSSGNVSAQP EEDEEDLGIG GLTGKQLREL QD LRLIEEE NMLAPSLKQF SLRVEILPSY IPVRVAEKIL FVGESVQMFE NQNVNLTRKG SILKNQEDTF AAELHRLKQQ PLF SLVDFE QVVDRIRSTV AEHLWKLMVE ESDLLGQLKI IKDFYLLGRG ELFQAFIDTA QHMLKTPPTA VTEHDVNVAF QQSA HKVLL DDDNLLPLLH LTIEYHGKEH KADATQAREG PSRETSPREA PASGWAALGL SYKVQWPLHI LFTPAVLEKY NVVFK YLLS VRRVQAELQH CWALQMQRKH LKSNQTDAIK WRLRNHMAFL VDNLQYYLQV DVLESQFSQL LHQINSTRDF ESIRLA HDH FLSNLLAQSF ILLKPVFHCL NEILDLCHSF CSLVSQNLGP LDERGAAQLS ILVKGFSRQS SLLFKILSSV RNHQINS DL AQLLLRLDYN KYYTQAGGTL GSFGM

UniProtKB: Gamma-tubulin complex component 4

+
Macromolecule #4: Gamma-tubulin complex component 5

MacromoleculeName: Gamma-tubulin complex component 5 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 118.467547 KDa
SequenceString: MARHGPPWSR LDAQQERDVR ELVRGVAGLQ DEADPNFQLA LNFAWSNFRF HRFLDVNSHK IEKTIEGIYE KFVIHSDLSK AASWKRLTE EFLNAPLPSI KEIKTDAHYS ILSLLLCLSD SPSNSSYVET PRNKEVEKKD DFDWGKYLME DEEMDIGPYM D TPNWSEES ...String:
MARHGPPWSR LDAQQERDVR ELVRGVAGLQ DEADPNFQLA LNFAWSNFRF HRFLDVNSHK IEKTIEGIYE KFVIHSDLSK AASWKRLTE EFLNAPLPSI KEIKTDAHYS ILSLLLCLSD SPSNSSYVET PRNKEVEKKD DFDWGKYLME DEEMDIGPYM D TPNWSEES EEENDQQPLS REDSGIQVDR TPLEEQDQNR KLDPCISWKD EPDDRSWLEH HVVHQYWTAR PSQFPHSLHL HS NLAAVWD QHLYSSDPLY VPDDRVLVTE TQVIRETLWL LSGVKKLFIF QLIDGKVTVR NNIIVTHLTH SCLRSVLEQI AAY GQVVFR LQEFIDEVMG HSSESMLPGS GSVPKKSTEA PFRTYQAFMW ALYKYFISFK EELAEIEKCI INNDTTITLA IVVD KLAPR LSQLKVLHKV FSTGVAEVPP DTRNVVRASH LLNTLYKAIL EYDNVGEASE QTVSLLFSLW VETVRPYLQT VDEWI VHGH LWDGAREFII QRNKNVPVNH RDFWYATYTL YSVSEKTENE EKMSDNASAS SGSDQGPSSR QHTMVSFLKP VLKQII MAG KSMQLLKNLQ CAESTTCQAG ARDAERKSLY TLFLESVQSR LRHGEDSTPQ VLTEQQATKE NLMKMQSIAE SHLELDD VH DPLLAINFAR MYLEQSDFHE KFAGGDVCVD RSSESVTCQT FELTLRSCLY PHIDKQYLDC CGNLMQTLKK DYRLVEYL Q AMRNFFLMEG GDTMYDFYTS IFDKIREKET WQNVSFLNVQ LQEAVGQRYP EDSSRLSISF ENVDTAKKKL PVHILDGLT LSYKVPWPVD IVISLECQKI YNQVFLLLLQ IKWAKYSLDV LLFGELVSTA EKPRLKEGLI HEQDTVAQFG PQKEPVRQQI HRMFLLRVK LMHFVNSLHN YIMTRILHST GLEFQHQVEE AKDLDQLIKI HYRYLSTIHD RCLLREKVSF VKEAIMKVLN L ALMFADGW QAGLGTWRME SIEKMESDFK NCHMFLVTIL NKAVCRGSFP HLESLALSLM AGMEQS

UniProtKB: Gamma-tubulin complex component 5

+
Macromolecule #5: Gamma-tubulin complex component 6

MacromoleculeName: Gamma-tubulin complex component 6 / type: protein_or_peptide / ID: 5
Details: Sequence truncated around modeled region of GCP6 to enable deposition; full sequence can be found at Uniprot # Q96RT7.
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 200.733641 KDa
SequenceString: 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 T