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- EMDB-26120: The beta-tubulin folding intermediate II -

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Basic information

Entry
Database: EMDB / ID: EMD-26120
TitleThe beta-tubulin folding intermediate II
Map datasharpened map of tubulin intermediate in closed TRiC
Sample
  • Complex: Closed form human TRiC in complex with beta-tubulin under ATP/AlFx condition.
    • Protein or peptide: x 9 types
  • Ligand: x 4 types
KeywordsHuman chaperonin TRiC with beta-tubulin folding intermediate II / CHAPERONE
Function / homology
Function and homology information


odontoblast differentiation / zona pellucida receptor complex / scaRNA localization to Cajal body / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / BBSome-mediated cargo-targeting to cilium / cytoskeleton-dependent intracellular transport ...odontoblast differentiation / zona pellucida receptor complex / scaRNA localization to Cajal body / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / BBSome-mediated cargo-targeting to cilium / cytoskeleton-dependent intracellular transport / binding of sperm to zona pellucida / positive regulation of telomerase RNA localization to Cajal body / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / Prefoldin mediated transfer of substrate to CCT/TriC / GTPase activating protein binding / RHOBTB1 GTPase cycle / intermediate filament cytoskeleton / WD40-repeat domain binding / natural killer cell mediated cytotoxicity / intercellular bridge / regulation of synapse organization / pericentriolar material / nuclear envelope lumen / beta-tubulin binding / Association of TriC/CCT with target proteins during biosynthesis / : / MHC class I protein binding / microtubule-based process / chaperone-mediated protein complex assembly / spindle assembly / RHOBTB2 GTPase cycle / heterochromatin / chaperone-mediated protein folding / 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 / protein folding chaperone / Anchoring of the basal body to the plasma membrane / positive regulation of telomere maintenance via telomerase / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / AURKA Activation by TPX2 / acrosomal vesicle / cell projection / mRNA 3'-UTR binding / ATP-dependent protein folding chaperone / response to virus / cilium / mitotic spindle / structural constituent of cytoskeleton / mRNA 5'-UTR binding / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / azurophil granule lumen / microtubule cytoskeleton / Regulation of PLK1 Activity at G2/M Transition / G-protein beta-subunit binding / unfolded protein binding / melanosome / protein folding / mitotic cell cycle / cell body / secretory granule lumen / ficolin-1-rich granule lumen / microtubule / Potential therapeutics for SARS / cytoskeleton / protein stabilization / cadherin binding / membrane raft / protein domain specific binding / cell division / GTPase activity / centrosome / ubiquitin protein ligase binding / Neutrophil degranulation / protein-containing complex binding / GTP binding / structural molecule activity / Golgi apparatus / ATP hydrolysis activity / protein-containing complex / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm
Similarity search - Function
T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / Chaperonins TCP-1 signature 1. / : ...T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / Chaperonins TCP-1 signature 1. / : / Chaperonins TCP-1 signature 2. / Chaperonin TCP-1, conserved site / Chaperonins TCP-1 signature 3. / Chaperone tailless complex polypeptide 1 (TCP-1) / GroEL-like equatorial domain superfamily / TCP-1-like chaperonin intermediate domain superfamily / GroEL-like apical domain superfamily / TCP-1/cpn60 chaperonin family / Chaperonin Cpn60/GroEL/TCP-1 family / Tubulin-beta mRNA autoregulation signal. / Beta tubulin, autoregulation binding site / Beta tubulin / 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 beta chain / T-complex protein 1 subunit alpha / T-complex protein 1 subunit zeta / T-complex protein 1 subunit epsilon / T-complex protein 1 subunit gamma / T-complex protein 1 subunit theta / T-complex protein 1 subunit delta / T-complex protein 1 subunit beta / T-complex protein 1 subunit eta
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsZhao Y / Frydman J / Chiu W
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM074074 United States
National Institutes of Health/Office of the DirectorP41GM103832 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM079429 United States
CitationJournal: Cell / Year: 2022
Title: Structural visualization of the tubulin folding pathway directed by human chaperonin TRiC/CCT.
Authors: Daniel Gestaut / Yanyan Zhao / Junsun Park / Boxue Ma / Alexander Leitner / Miranda Collier / Grigore Pintilie / Soung-Hun Roh / Wah Chiu / Judith Frydman /
Abstract: The ATP-dependent ring-shaped chaperonin TRiC/CCT is essential for cellular proteostasis. To uncover why some eukaryotic proteins can only fold with TRiC assistance, we reconstituted the folding of ...The ATP-dependent ring-shaped chaperonin TRiC/CCT is essential for cellular proteostasis. To uncover why some eukaryotic proteins can only fold with TRiC assistance, we reconstituted the folding of β-tubulin using human prefoldin and TRiC. We find unstructured β-tubulin is delivered by prefoldin to the open TRiC chamber followed by ATP-dependent chamber closure. Cryo-EM resolves four near-atomic-resolution structures containing progressively folded β-tubulin intermediates within the closed TRiC chamber, culminating in native tubulin. This substrate folding pathway appears closely guided by site-specific interactions with conserved regions in the TRiC chamber. Initial electrostatic interactions between the TRiC interior wall and both the folded tubulin N domain and its C-terminal E-hook tail establish the native substrate topology, thus enabling C-domain folding. Intrinsically disordered CCT C termini within the chamber promote subsequent folding of tubulin's core and middle domains and GTP-binding. Thus, TRiC's chamber provides chemical and topological directives that shape the folding landscape of its obligate substrates.
History
DepositionFeb 1, 2022-
Header (metadata) releaseDec 28, 2022-
Map releaseDec 28, 2022-
UpdateJun 12, 2024-
Current statusJun 12, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_26120.png

Downloads & links

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Map

FileDownload / File: emd_26120.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationsharpened map of tubulin intermediate in closed TRiC
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesX (Sec.)Y (Row.)Z (Col.)
1.1 Å/pix.
x 320 pix.
= 352. Å		1.1 Å/pix.
x 320 pix.
= 352. Å		1.1 Å/pix.
x 320 pix.
= 352. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.1 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 4.0
Minimum - Maximum-7.6320653 - 18.672405000000001
Average (Standard dev.)0.000000000000406 (±1.0)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 352.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: unsharpened map of tubulin intermediate in closed TRiC

Fileemd_26120_additional_1.map
Annotationunsharpened map of tubulin intermediate in closed TRiC
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Closed form human TRiC in complex with beta-tubulin under ATP/AlF...

EntireName: Closed form human TRiC in complex with beta-tubulin under ATP/AlFx condition.
Components
  • Complex: Closed form human TRiC in complex with beta-tubulin under ATP/AlFx condition.
    • Protein or peptide: T-complex protein 1 subunit zeta
    • Protein or peptide: T-complex protein 1 subunit theta
    • Protein or peptide: T-complex protein 1 subunit eta
    • Protein or peptide: T-complex protein 1 subunit epsilon
    • Protein or peptide: T-complex protein 1 subunit delta
    • Protein or peptide: T-complex protein 1 subunit alpha
    • Protein or peptide: T-complex protein 1 subunit gamma
    • Protein or peptide: T-complex protein 1 subunit beta
    • Protein or peptide: Tubulin beta chain
  • Ligand: ALUMINUM FLUORIDE
  • Ligand: MAGNESIUM ION
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: water

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Supramolecule #1: Closed form human TRiC in complex with beta-tubulin under ATP/AlF...

SupramoleculeName: Closed form human TRiC in complex with beta-tubulin under ATP/AlFx condition.
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #9, #2-#4, #6-#8, #5, #1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 1 MDa

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Macromolecule #1: Tubulin beta chain

MacromoleculeName: Tubulin beta chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 49.717629 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: 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

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Macromolecule #2: T-complex protein 1 subunit theta

MacromoleculeName: T-complex protein 1 subunit theta / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 59.576332 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MALHVPKAPG FAQMLKEGAK HFSGLEEAVY RNIQACKELA QTTRTAYGPN GMNKMVINHL EKLFVTNDAA TILRELEVQH PAAKMIVMA SHMQEQEVGD GTNFVLVFAG ALLELAEELL RIGLSVSEVI EGYEIACRKA HEILPNLVCC SAKNLRDIDE V SSLLRTSI ...String:
MALHVPKAPG FAQMLKEGAK HFSGLEEAVY RNIQACKELA QTTRTAYGPN GMNKMVINHL EKLFVTNDAA TILRELEVQH PAAKMIVMA SHMQEQEVGD GTNFVLVFAG ALLELAEELL RIGLSVSEVI EGYEIACRKA HEILPNLVCC SAKNLRDIDE V SSLLRTSI MSKQYGNEVF LAKLIAQACV SIFPDSGHFN VDNIRVCKIL GSGISSSSVL HGMVFKKETE GDVTSVKDAK IA VYSCPFD GMITETKGTV LIKTAEELMN FSKGEENLMD AQVKAIADTG ANVVVTGGKV ADMALHYANK YNIMLVRLNS KWD LRRLCK TVGATALPRL TPPVLEEMGH CDSVYLSEVG DTQVVVFKHE KEDGAISTIV LRGSTDNLMD DIERAVDDGV NTFK VLTRD KRLVPGGGAT EIELAKQITS YGETCPGLEQ YAIKKFAEAF EAIPRALAEN SGVKANEVIS KLYAVHQEGN KNVGL DIEA EVPAVKDMLE AGILDTYLGK YWAIKLATNA AVTVLRVDQI IMAKPAGGPK PPSGKKDWDD DQN

UniProtKB: T-complex protein 1 subunit theta

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Macromolecule #3: T-complex protein 1 subunit eta

MacromoleculeName: T-complex protein 1 subunit eta / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 60.560672 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MMPTPVILLK EGTDSSQGIP QLVSNISACQ VIAEAVRTTL GPRGMDKLIV DGRGKATISN DGATILKLLD VVHPAAKTLV DIAKSQDAE VGDGTTSVTL LAAEFLKQVK PYVEEGLHPQ IIIRAFRTAT QLAVNKIKEI AVTVKKADKV EQRKLLEKCA M TALSSKLI ...String:
MMPTPVILLK EGTDSSQGIP QLVSNISACQ VIAEAVRTTL GPRGMDKLIV DGRGKATISN DGATILKLLD VVHPAAKTLV DIAKSQDAE VGDGTTSVTL LAAEFLKQVK PYVEEGLHPQ IIIRAFRTAT QLAVNKIKEI AVTVKKADKV EQRKLLEKCA M TALSSKLI SQQKAFFAKM VVDAVMMLDD LLQLKMIGIK KVQGGALEDS QLVAGVAFKK TFSYAGFEMQ PKKYHNPKIA LL NVELELK AEKDNAEIRV HTVEDYQAIV DAEWNILYDK LEKIHHSGAK VVLSKLPIGD VATQYFADRD MFCAGRVPEE DLK RTMMAC GGSIQTSVNA LSADVLGRCQ VFEETQIGGE RYNFFTGCPK AKTCTFILRG GAEQFMEETE RSLHDAIMIV RRAI KNDSV VAGGGAIEME LSKYLRDYSR TIPGKQQLLI GAYAKALEII PRQLCDNAGF DATNILNKLR ARHAQGGSHH HHHHG SGTW YGVDINNEDI ADNFEAFVWE PAMVRINALT AASEAACLIV SVDETIKNPR STVDAPTAAG RGRGRGRPH

UniProtKB: T-complex protein 1 subunit eta

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Macromolecule #4: T-complex protein 1 subunit epsilon

MacromoleculeName: T-complex protein 1 subunit epsilon / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 59.749957 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MASMGTLAFD EYGRPFLIIK DQDRKSRLMG LEALKSHIMA AKAVANTMRT SLGPNGLDKM MVDKDGDVTV TNDGATILSM MDVDHQIAK LMVELSKSQD DEIGDGTTGV VVLAGALLEE AEQLLDRGIH PIRIADGYEQ AARVAIEHLD KISDSVLVDI K DTEPLIQT ...String:
MASMGTLAFD EYGRPFLIIK DQDRKSRLMG LEALKSHIMA AKAVANTMRT SLGPNGLDKM MVDKDGDVTV TNDGATILSM MDVDHQIAK LMVELSKSQD DEIGDGTTGV VVLAGALLEE AEQLLDRGIH PIRIADGYEQ AARVAIEHLD KISDSVLVDI K DTEPLIQT AKTTLGSKVV NSCHRQMAEI AVNAVLTVAD MERRDVDFEL IKVEGKVGGR LEDTKLIKGV IVDKDFSHPQ MP KKVEDAK IAILTCPFEP PKPKTKHKLD VTSVEDYKAL QKYEKEKFEE MIQQIKETGA NLAICQWGFD DEANHLLLQN NLP AVRWVG GPEIELIAIA TGGRIVPRFS ELTAEKLGFA GLVQEISFGT TKDKMLVIEQ CKNSRAVTIF IRGGNKMIIE EAKR SLHDA LCVIRNLIRD NRVVYGGGAA EISCALAVSQ EADKCPTLEQ YAMRAFADAL EVIPMALSEN SGMNPIQTMT EVRAR QVKE MNPALGIDCL HKGTNDMKQQ HVIETLIGKK QQISLATQMV RMILKIDDIR KPGESEE

UniProtKB: T-complex protein 1 subunit epsilon

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Macromolecule #5: T-complex protein 1 subunit beta

MacromoleculeName: T-complex protein 1 subunit beta / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 57.567141 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MASLSLAPVN IFKAGADEER AETARLTSFI GAIAIGDLVK STLGPKGMDK ILLSSGRDAS LMVTNDGATI LKNIGVDNPA AKVLVDMSR VQDDEVGDGT TSVTVLAAEL LREAESLIAK KIHPQTIIAG WREATKAARE ALLSSAVDHG SDEVKFRQDL M NIAGTTLS ...String:
MASLSLAPVN IFKAGADEER AETARLTSFI GAIAIGDLVK STLGPKGMDK ILLSSGRDAS LMVTNDGATI LKNIGVDNPA AKVLVDMSR VQDDEVGDGT TSVTVLAAEL LREAESLIAK KIHPQTIIAG WREATKAARE ALLSSAVDHG SDEVKFRQDL M NIAGTTLS SKLLTHHKDH FTKLAVEAVL RLKGSGNLEA IHIIKKLGGS LADSYLDEGF LLDKKIGVNQ PKRIENAKIL IA NTGMDTD KIKIFGSRVR VDSTAKVAEI EHAEKEKMKE KVERILKHGI NCFINRQLIY NYPEQLFGAA GVMAIEHADF AGV ERLALV TGGEIASTFD HPELVKLGSC KLIEEVMIGE DKLIHFSGVA LGEACTIVLR GATQQILDEA ERSLHDALCV LAQT VKDSR TVYGGGCSEM LMAHAVTQLA NRTPGKEAVA MESYAKALRM LPTIIADNAG YDSADLVAQL RAAHSEGNTT AGLDM REGT IGDMAILGIT ESFQVKRQVL LSAAEAAEVI LRVDNIIKAA PRKRVPDHHP C

UniProtKB: T-complex protein 1 subunit beta

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Macromolecule #6: T-complex protein 1 subunit delta

MacromoleculeName: T-complex protein 1 subunit delta / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 57.996113 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MPENVAPRSG ATAGAAGGRG KGAYQDRDKP AQIRFSNISA AKAVADAIRT SLGPKGMDKM IQDGKGDVTI TNDGATILKQ MQVLHPAAR MLVELSKAQD IEAGDGTTSV VIIAGSLLDS CTKLLQKGIH PTIISESFQK ALEKGIEILT DMSRPVELSD R ETLLNSAT ...String:
MPENVAPRSG ATAGAAGGRG KGAYQDRDKP AQIRFSNISA AKAVADAIRT SLGPKGMDKM IQDGKGDVTI TNDGATILKQ MQVLHPAAR MLVELSKAQD IEAGDGTTSV VIIAGSLLDS CTKLLQKGIH PTIISESFQK ALEKGIEILT DMSRPVELSD R ETLLNSAT TSLNSKVVSQ YSSLLSPMSV NAVMKVIDPA TATSVDLRDI KIVKKLGGTI DDCELVEGLV LTQKVSNSGI TR VEKAKIG LIQFCLSAPK TDMDNQIVVS DYAQMDRVLR EERAYILNLV KQIKKTGCNV LLIQKSILRD ALSDLALHFL NKM KIMVIK DIEREDIEFI CKTIGTKPVA HIDQFTADML GSAELAEEVN LNGSGKLLKI TGCASPGKTV TIVVRGSNKL VIEE AERSI HDALCVIRCL VKKRALIAGG GAPEIELALR LTEYSRTLSG MESYCVRAFA DAMEVIPSTL AENAGLNPIS TVTEL RNRH AQGEKTAGIN VRKGGISNIL EELVVQPLLV SVSALTLATE TVRSILKIDD VVNTR

UniProtKB: T-complex protein 1 subunit delta

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Macromolecule #7: T-complex protein 1 subunit alpha

MacromoleculeName: T-complex protein 1 subunit alpha / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 60.418477 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MEGPLSVFGD RSTGETIRSQ NVMAAASIAN IVKSSLGPVG LDKMLVDDIG DVTITNDGAT ILKLLEVEHP AAKVLCELAD LQDKEVGDG TTSVVIIAAE LLKNADELVK QKIHPTSVIS GYRLACKEAV RYINENLIVN TDELGRDCLI NAAKTSMSSK I IGINGDFF ...String:
MEGPLSVFGD RSTGETIRSQ NVMAAASIAN IVKSSLGPVG LDKMLVDDIG DVTITNDGAT ILKLLEVEHP AAKVLCELAD LQDKEVGDG TTSVVIIAAE LLKNADELVK QKIHPTSVIS GYRLACKEAV RYINENLIVN TDELGRDCLI NAAKTSMSSK I IGINGDFF ANMVVDAVLA IKYTDIRGQP RYPVNSVNIL KAHGRSQMES MLISGYALNC VVGSQGMPKR IVNAKIACLD FS LQKTKMK LGVQVVITDP EKLDQIRQRE SDITKERIQK ILATGANVIL TTGGIDDMCL KYFVEAGAMA VRRVLKRDLK RIA KASGAT ILSTLANLEG EETFEAAMLG QAEEVVQERI CDDELILIKN TKARTSASII LRGANDFMCD EMERSLHDAL CVVK RVLES KSVVPGGGAV EAALSIYLEN YATSMGSREQ LAIAEFARSL LVIPNTLAVN AAQDSTDLVA KLRAFHNEAQ VNPER KNLK WIGLDLSNGK PRDNKQAGVF EPTIVKVKSL KFATEAAITI LRIDDLIKLH PESKDDKHGS YEDAVHSGAL ND

UniProtKB: T-complex protein 1 subunit alpha

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Macromolecule #8: T-complex protein 1 subunit gamma

MacromoleculeName: T-complex protein 1 subunit gamma / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 60.613855 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MMGHRPVLVL SQNTKRESGR KVQSGNINAA KTIADIIRTC LGPKSMMKML LDPMGGIVMT NDGNAILREI QVQHPAAKSM IEISRTQDE EVGDGTTSVI ILAGEMLSVA EHFLEQQMHP TVVISAYRKA LDDMISTLKK ISIPVDISDS DMMLNIINSS I TTKAISRW ...String:
MMGHRPVLVL SQNTKRESGR KVQSGNINAA KTIADIIRTC LGPKSMMKML LDPMGGIVMT NDGNAILREI QVQHPAAKSM IEISRTQDE EVGDGTTSVI ILAGEMLSVA EHFLEQQMHP TVVISAYRKA LDDMISTLKK ISIPVDISDS DMMLNIINSS I TTKAISRW SSLACNIALD AVKMVQFEEN GRKEIDIKKY ARVEKIPGGI IEDSCVLRGV MINKDVTHPR MRRYIKNPRI VL LDSSLEY KKGESQTDIE ITREEDFTRI LQMEEEYIQQ LCEDIIQLKP DVVITEKGIS DLAQHYLMRA NITAIRRVRK TDN NRIARA CGARIVSRPE ELREDDVGTG AGLLEIKKIG DEYFTFITDC KDPKACTILL RGASKEILSE VERNLQDAMQ VCRN VLLDP QLVPGGGASE MAVAHALTEK SKAMTGVEQW PYRAVAQALE VIPRTLIQNC GASTIRLLTS LRAKHTQENC ETWGV NGET GTLVDMKELG IWEPLAVKLQ TYKTAVETAV LLLRIDDIVS GHKKKGDDQS RQGGAPDAGQ E

UniProtKB: T-complex protein 1 subunit gamma

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Macromolecule #9: T-complex protein 1 subunit zeta

MacromoleculeName: T-complex protein 1 subunit zeta / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 58.16618 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MAAVKTLNPK AEVARAQAAL AVNISAARGL QDVLRTNLGP KGTMKMLVSG AGDIKLTKDG NVLLHEMQIQ HPTASLIAKV ATAQDDITG DGTTSNVLII GELLKQADLY ISEGLHPRII TEGFEAAKEK ALQFLEEVKV SREMDRETLI DVARTSLRTK V HAELADVL ...String:
MAAVKTLNPK AEVARAQAAL AVNISAARGL QDVLRTNLGP KGTMKMLVSG AGDIKLTKDG NVLLHEMQIQ HPTASLIAKV ATAQDDITG DGTTSNVLII GELLKQADLY ISEGLHPRII TEGFEAAKEK ALQFLEEVKV SREMDRETLI DVARTSLRTK V HAELADVL TEAVVDSILA IKKQDEPIDL FMIEIMEMKH KSETDTSLIR GLVLDHGARH PDMKKRVEDA YILTCNVSLE YE KTEVNSG FFYKSAEERE KLVKAERKFI EDRVKKIIEL KRKVCGDSDK GFVVINQKGI DPFSLDALSK EGIVALRRAK RRN MERLTL ACGGVALNSF DDLSPDCLGH AGLVYEYTLG EEKFTFIEKC NNPRSVTLLI KGPNKHTLTQ IKDAVRDGLR AVKN AIDDG CVVPGAGAVE VAMAEALIKH KPSVKGRAQL GVQAFADALL IIPKVLAQNS GFDLQETLVK IQAEHSESGQ LVGVD LNTG EPMVAAEVGV WDNYCVKKQL LHSCTVIATN ILLVDEIMRA GMSFLKG

UniProtKB: T-complex protein 1 subunit zeta

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Macromolecule #10: ALUMINUM FLUORIDE

MacromoleculeName: ALUMINUM FLUORIDE / type: ligand / ID: 10 / Number of copies: 8 / Formula: AF3
Molecular weightTheoretical: 83.977 Da
Chemical component information

ChemComp-AF3:
ALUMINUM FLUORIDE

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Macromolecule #11: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 11 / Number of copies: 8 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #12: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 12 / Number of copies: 8 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM

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Macromolecule #13: water

MacromoleculeName: water / type: ligand / ID: 13 / Number of copies: 8 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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

Concentration1 mg/mL
BufferpH: 7.4
Component:
ConcentrationNameFormula
50.0 mM4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid
50.0 mMPotassium chlorideKCl
5.0 mMMagnesium ChlorideMgCl2
1.0 mMDithiothreitol
1.0 mMATP
60.0 mMSodium FluorideNaF
10.0 mMAluminum NitrateAl(NO3)3
GridModel: Quantifoil R1.2/1.3 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 1.21 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 42804
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-7ttn:
The beta-tubulin folding intermediate II

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