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- EMDB-19570: CryoEM structure of the gTuRC-CM1dim complex -

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Basic information

Entry
Database: EMDB / ID: EMD-19570
TitleCryoEM structure of the gTuRC-CM1dim complex
Map data3D Refinement map of the gTuRC-CM1dim complex
Sample
  • Complex: gTuRC-CM1dim complex
    • Protein or peptide: Tubulin gamma-1 chain
    • Protein or peptide: Actin b
    • Protein or peptide: Gamma-tubulin complex component 2
    • Protein or peptide: Gamma-tubulin complex component 3
    • Protein or peptide: CM1
    • 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: Mitotic-spindle organizing protein 1
    • Protein or peptide: Mitotic-spindle organizing protein 2A
KeywordsgTuRC / gTuSC / CM1 / CDK5RAP2 / gamma-tubulin / microtubule / alfa/beta-tubulin nucleation / cytoskeleton / 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 / mitotic spindle microtubule / meiotic spindle organization / gamma-tubulin complex / microtubule nucleation ...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 / mitotic spindle microtubule / meiotic spindle organization / gamma-tubulin complex / microtubule nucleation / non-motile cilium / gamma-tubulin binding / microtubule organizing center / pericentriolar material / cytoplasmic microtubule / cell leading edge / mitotic sister chromatid segregation / mitotic spindle assembly / 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 / condensed nuclear chromosome / meiotic cell cycle / neuron migration / brain development / recycling endosome / structural constituent of cytoskeleton / microtubule cytoskeleton organization / spindle pole / 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 / cytosol / cytoplasm
Similarity search - Function
MOZART2 family / Mitotic-spindle organizing gamma-tubulin ring associated / Mitotic-spindle organizing protein 1 / Mitotic-spindle organizing gamma-tubulin ring associated / 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 ...MOZART2 family / Mitotic-spindle organizing gamma-tubulin ring associated / Mitotic-spindle organizing protein 1 / Mitotic-spindle organizing gamma-tubulin ring associated / 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 / Mitotic-spindle organizing protein 1 / Mitotic-spindle organizing protein 2A / 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) / Spodoptera frugiperda (fall armyworm)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.57 Å
AuthorsLlorca O / Serna M / Gonzalez-Rodriguez N
Funding support Spain, European Union, 2 items
OrganizationGrant numberCountry
Agencia Estatal de Investigacion (AEI)AEI/10.13039/501100011 003 Spain
European Regional Development FundPID2020-114429RB-I00European Union
CitationJournal: Dev Cell / Year: 2024
Title: CDK5RAP2 activates microtubule nucleator γTuRC by facilitating template formation and actin release.
Authors: Marina Serna / Fabian Zimmermann / Chithran Vineethakumari / Nayim Gonzalez-Rodriguez / Oscar Llorca / Jens Lüders /
Abstract: To organize microtubules, cells tightly control the activity of the microtubule nucleator γ-tubulin ring complex (γTuRC). The open ring-shaped γTuRC was proposed to nucleate microtubules by a ...To organize microtubules, cells tightly control the activity of the microtubule nucleator γ-tubulin ring complex (γTuRC). The open ring-shaped γTuRC was proposed to nucleate microtubules by a template mechanism. However, its splayed structure does not match microtubule symmetry, leaving it unclear how γTuRC becomes an efficient nucleator. Here, we identify the mechanism of γTuRC activation by CDK5RAP2 centrosomin motif 1 (CM1). Using cryoelectron microscopy (cryo-EM), we find that activation involves binding of multiple CM1 dimers to five distinct sites around the outside of the γTuRC cone, which crucially depends on regulatory modules formed by MZT2 and the N-terminal extensions of GCP2 subunits. CM1 binding promotes lateral interactions between GCP subunits to facilitate microtubule-like conformations and release of luminal actin that is integral to non-activated γTuRC. We propose a model where generation of γTuRC with an expanded conformational range, rather than perfect symmetry, is sufficient to boost nucleation activity.
History
DepositionFeb 6, 2024-
Header (metadata) releaseSep 25, 2024-
Map releaseSep 25, 2024-
UpdateOct 9, 2024-
Current statusOct 9, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_19570.png

Downloads & links

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Map

FileDownload / File: emd_19570.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation3D Refinement map of the gTuRC-CM1dim complex
Projections & slices

Image control

Size
Brightness
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.67 Å/pix.
x 360 pix.
= 601.2 Å		1.67 Å/pix.
x 360 pix.
= 601.2 Å		1.67 Å/pix.
x 360 pix.
= 601.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.67 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.011
Minimum - Maximum-0.019136854 - 0.0659452
Average (Standard dev.)0.000117333 (±0.0020949293)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 601.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_19570_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : gTuRC-CM1dim complex

EntireName: gTuRC-CM1dim complex
Components
  • Complex: gTuRC-CM1dim complex
    • Protein or peptide: Tubulin gamma-1 chain
    • Protein or peptide: Actin b
    • Protein or peptide: Gamma-tubulin complex component 2
    • Protein or peptide: Gamma-tubulin complex component 3
    • Protein or peptide: CM1
    • 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: Mitotic-spindle organizing protein 1
    • Protein or peptide: Mitotic-spindle organizing protein 2A

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Supramolecule #1: gTuRC-CM1dim complex

SupramoleculeName: gTuRC-CM1dim complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Tubulin gamma-1 chain

MacromoleculeName: Tubulin gamma-1 chain / type: protein_or_peptide / ID: 1 / Number of copies: 14 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 51.22777 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MPREIITLQL GQCGNQIGFE FWKQLCAEHG ISPEGIVEEF ATEGTDRKDV FFYQADDEHY IPRAVLLDLE PRVIHSILNS PYAKLYNPE NIYLSEHGGG AGNNWASGFS QGEKIHEDIF DIIDREADGS DSLEGFVLCH SIAGGTGSGL GSYLLERLND R YPKKLVQT ...String:
MPREIITLQL GQCGNQIGFE FWKQLCAEHG ISPEGIVEEF ATEGTDRKDV FFYQADDEHY IPRAVLLDLE PRVIHSILNS PYAKLYNPE NIYLSEHGGG AGNNWASGFS QGEKIHEDIF DIIDREADGS DSLEGFVLCH SIAGGTGSGL GSYLLERLND R YPKKLVQT YSVFPNQDEM SDVVVQPYNS LLTLKRLTQN ADCVVVLDNT ALNRIATDRL HIQNPSFSQI NQLVSTIMSA ST TTLRYPG YMNNDLIGLI ASLIPTPRLH FLMTGYTPLT TDQSVASVRK TTVLDVMRRL LQPKNVMVST GRDRQTNHCY IAI LNIIQG EVDPTQVHKS LQRIRERKLA NFIPWGPASI QVALSRKSPY LPSAHRVSGL MMANHTSISS LFERTCRQYD KLRK REAFL EQFRKEDMFK DNFDEMDTSR EIVQQLIDEY HAATRPDYIS WGTQEQ

UniProtKB: Tubulin gamma-1 chain

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Macromolecule #2: Actin b

MacromoleculeName: Actin b / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Spodoptera frugiperda (fall armyworm)
Molecular weightTheoretical: 40.697316 KDa
SequenceString: DEEVAALVVD NGSGMCKAGF AGDDAPRAVF PSIVGRPRKD SYVGDEAQSK RGILTLKYPI EHGIVTNWDD MEKIWHHTFY NELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVLDSGDGVS HTVPIYEGYA L PHAILRLD ...String:
DEEVAALVVD NGSGMCKAGF AGDDAPRAVF PSIVGRPRKD SYVGDEAQSK RGILTLKYPI EHGIVTNWDD MEKIWHHTFY NELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVLDSGDGVS HTVPIYEGYA L PHAILRLD LAGRDLTDYL MKILTERGYS FTTTEEREIV RDIKEKLCYV ALDFEQEMAT AASSSSLEKS YELKDGQVIT IG NERFRCP EALFQPSFLG MEACGIHETT YNSIMKCDVD IRKDLYANTV LSGGTTMYPG IADRMQKEIT ALAPSTMKIK IIA PPERKY SVWIGGSILA SLSTFQQMWI SKQEYDESGP SIVHRKCF

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Macromolecule #3: Gamma-tubulin complex component 2

MacromoleculeName: Gamma-tubulin complex component 2 / type: protein_or_peptide / ID: 3 / Number of copies: 6 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 102.666953 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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 TDTALPIGTL PLASQESAVV EDLLYVLVGV DGRYVSAQPL AG RQSRTFL VDPNLDLSIR ELVHRILPVA ASYSAVTRFI EEKSSFEYGQ VNHALAAAMR TLVKEHLILV SQLEQLHRQG LLS LQKLWF YIQPAMRTMD ILASLATSVD KGECLGGSTL SLLHDRSFSY TGDSQAQELC LYLTKAASAP YFEVLEKWIY RGII HDPYS EFMVEEHELR KERIQEDYND KYWDQRYTIV QQQIPSFLQK MADKILSTGK YLNVVRECGH DVTCPVAKEI IYTLK ERAY VEQIEKAFNY ASKVLLDFLM EEKELVAHLR SIKRYFLMDQ GDFFVHFMDL AEEELRKPVE DITPPRLEAL LELALR MST ANTDPFKDDL KIDLMPHDLI TQLLRVLAIE TKQEKAMAHA DPTELALSGL EAFSFDYIVK WPLSLIINRK ALTRYQM LF RHMFYCKHVE RQLCSVWISN KTAKQHSLHS AQWFAGAFTL RQRMLNFVQN IQYYMMFEVM EPTWHILEKN LKSASNID D VLGHHTGFLD TCLKDCMLTN PELLKVFSKL MSVCVMFTNC MQKFTQSMKL DGELGGQTLE HSTVLGLPAG AEERARKEL ARKHLAEHAD TVQLVSGFEA TINKFDKNFS AHLLDLLARL SIYSTSDCEH GMASVISRLD FNGFYTERLE RLSAERSQKA TPQVPVLRG PPAPAPRVAV TAQ

UniProtKB: Gamma-tubulin complex component 2

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Macromolecule #4: Gamma-tubulin complex component 3

MacromoleculeName: Gamma-tubulin complex component 3 / type: protein_or_peptide / ID: 4 / Number of copies: 6 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 103.710102 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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

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Macromolecule #5: CM1

MacromoleculeName: CM1 / type: protein_or_peptide / ID: 5 / Number of copies: 10 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 26.765963 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGSSHHHHHH GSDSEVNQEA KPEVKPEVKP ETHINLKVSD GSSEIFFKIK KTTPLRRLME AFAKRQGKEM DSLRFLYDGI RIQADQTPE DLDMEDNDII EAHREQIGGA WSHPQFEKSA TVSPTRARNM KDFENQITEL KKENFNLKLR IYFLEERMQQ E FHGDDEAA ...String:
MGSSHHHHHH GSDSEVNQEA KPEVKPEVKP ETHINLKVSD GSSEIFFKIK KTTPLRRLME AFAKRQGKEM DSLRFLYDGI RIQADQTPE DLDMEDNDII EAHREQIGGA WSHPQFEKSA TVSPTRARNM KDFENQITEL KKENFNLKLR IYFLEERMQQ E FHGDDEAA ELMQQVNVLK LTVEDLEKER DFYFGKLRNI ELICQENEGE NDPVLQRIVD ILYATDEGFV I

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Macromolecule #6: Gamma-tubulin complex component 4

MacromoleculeName: Gamma-tubulin complex component 4 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 76.179969 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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

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Macromolecule #7: Gamma-tubulin complex component 5

MacromoleculeName: Gamma-tubulin complex component 5 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 118.467547 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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

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Macromolecule #8: Gamma-tubulin complex component 6

MacromoleculeName: Gamma-tubulin complex component 6 / type: protein_or_peptide / ID: 8 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 200.733641 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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 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

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Macromolecule #9: Mitotic-spindle organizing protein 1

MacromoleculeName: Mitotic-spindle organizing protein 1 / type: protein_or_peptide / ID: 9 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.485724 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASSSGAGAA AAAAAANLNA VRETMDVLLE ISRILNTGLD METLSICVRL CEQGINPEAL SSVIKELRKA TEALKAAENM TS

UniProtKB: Mitotic-spindle organizing protein 1

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Macromolecule #10: Mitotic-spindle organizing protein 2A

MacromoleculeName: Mitotic-spindle organizing protein 2A / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 16.240576 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MAAQGVGPGP GSAAPPGLEA ARQKLALRRK KVLSTEEMEL YELAQAAGGG IDPDVFKILV DLLKLNVAPL AVFQMLKSMC AGQRLASEP QDPAAVSLPT SSVPETRGRD KGSAALGGVL ALAERSNHEG SSQRMPRQPS ATRLPKGGGP GKSPTQGST

UniProtKB: Mitotic-spindle organizing protein 2A

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
GridModel: Quantifoil R0.6/1 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 45 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 10.0 kPa
VitrificationCryogen name: ETHANE-PROPANE / Chamber humidity: 90 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: TFS Selectris X / Energy filter - Slit width: 10 eV
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 94094 / Average exposure time: 2.0 sec. / Average electron dose: 55.4 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.9 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 4399521
Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.57 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 4.0) / Number images used: 579078
Initial angle assignmentType: ANGULAR RECONSTITUTION / Software: (Name: cryoSPARC (ver. 4.0+), RELION (ver. 4.0))
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 4.0)
Final 3D classificationSoftware - Name: RELION (ver. 4.0)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model
PDB IDChain

7as4

source_name: PDB, initial_model_type: experimental model

6x0v

source_name: PDB, initial_model_type: experimental model
RefinementSpace: REAL / Protocol: FLEXIBLE FIT
Output model

PDB-8rx1:
CryoEM structure of the gTuRC-CM1dim complex

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