[English] 日本語
Yorodumi
- EMDB-21067: Structures of GCP2 and GCP3 in the native human gamma-tubulin rin... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-21067
TitleStructures of GCP2 and GCP3 in the native human gamma-tubulin ring complex
Map data
Sample
  • Complex: Native human gamma-tubulin ring complex
    • Protein or peptide: Gamma-tubulin complex component 3
    • Protein or peptide: Gamma-tubulin complex component 2
KeywordsGCP / GCP2 / GCP3 / gamma-TuSC / gTuSC / gamma-tubulin ring complex / gTuRC / g-TuRC / microtubule / microtubule nucleation / single particle cryo-EM structure / STRUCTURAL PROTEIN
Function / homology
Function and homology information


equatorial microtubule organizing center / polar microtubule / gamma-tubulin complex / microtubule nucleation / gamma-tubulin binding / microtubule organizing center / single fertilization / spindle assembly / cytoplasmic microtubule / cytoplasmic microtubule organization ...equatorial microtubule organizing center / polar microtubule / gamma-tubulin complex / microtubule nucleation / gamma-tubulin binding / microtubule organizing center / single fertilization / spindle assembly / cytoplasmic microtubule / cytoplasmic microtubule organization / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / centriole / meiotic cell cycle / brain development / neuron migration / structural constituent of cytoskeleton / spindle / spindle pole / mitotic cell cycle / protein-containing complex assembly / centrosome / structural molecule activity / nucleoplasm / membrane / cytosol / cytoplasm
Similarity search - Function
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
Similarity search - Domain/homology
Gamma-tubulin complex component 3 / Gamma-tubulin complex component 2
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.8 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 4, 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: 0.0233
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.0233
  • Imaged by UCSF Chimera
  • Download
  • Surface view with fitted model
  • Atomic models: PDB-6v6b
  • Surface level: 0.0233
  • Imaged by UCSF Chimera
  • Download
  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-6v6b
  • Imaged by Jmol
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_21067.png

Downloads & links

-
Map

FileDownload / File: emd_21067.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: 0.0233 / Movie #1: 0.0233
Minimum - Maximum-0.105781175 - 0.14746824
Average (Standard dev.)0.000051525974 (±0.0018626822)
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-0.1060.1470.000

-
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 3
    • Protein or peptide: Gamma-tubulin complex component 2

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

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

-
Macromolecule #1: Gamma-tubulin complex component 3

MacromoleculeName: Gamma-tubulin complex component 3 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / 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 #2: Gamma-tubulin complex component 2

MacromoleculeName: Gamma-tubulin complex component 2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / 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

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 45.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

-
Image processing

Startup modelType of model: OTHER / Details: Relion 3.0 initial model generation
Initial angle assignmentType: OTHER / Details: Relion 3.0
Final angle assignmentType: OTHER / Details: Relion 3.0
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 351714

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more