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- EMDB-3790: Structure of Tra1 subunit within the chromatin modifying complex SAGA -

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Basic information

Entry
Database: EMDB / ID: EMD-3790
TitleStructure of Tra1 subunit within the chromatin modifying complex SAGA
Map data
Sample
  • Complex: Tra1 subunit of SAGA complex
    • Protein or peptide: Tra1 subunit within the chromatin modifying complex SAGA
Keywordsyeast / Tra1 / SAGA / activator target / TRANSCRIPTION
Function / homology
Function and homology information


transferase activity
Similarity search - Function
Tra1, HEAT repeat ring region / Tra1, HEAT repeat central region / Tra1 HEAT repeat central region / Tra1 HEAT repeat ring region / : / PIK-related kinase, FAT / FATC / FAT domain / FAT domain profile. / FATC domain profile. ...Tra1, HEAT repeat ring region / Tra1, HEAT repeat central region / Tra1 HEAT repeat central region / Tra1 HEAT repeat ring region / : / PIK-related kinase, FAT / FATC / FAT domain / FAT domain profile. / FATC domain profile. / FATC domain / PIK-related kinase / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Armadillo-type fold / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Transcription-associated protein / SAGA and NuA4 histone acetyltransferase complexes subunits
Similarity search - Component
Biological speciesKomagataella pastoris (fungus)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.7 Å
AuthorsSharov G / Voltz K
Funding support France, 2 items
OrganizationGrant numberCountry
French Infrastructure for Integrated Structural Biology (FRISBI)ANR-10-INSB-05-01 France
French National Research AgencyANR-10-BINF-0003 France
CitationJournal: Nat Commun / Year: 2017
Title: Structure of the transcription activator target Tra1 within the chromatin modifying complex SAGA.
Authors: Grigory Sharov / Karine Voltz / Alexandre Durand / Olga Kolesnikova / Gabor Papai / Alexander G Myasnikov / Annick Dejaegere / Adam Ben Shem / Patrick Schultz /
Abstract: The transcription co-activator complex SAGA is recruited to gene promoters by sequence-specific transcriptional activators and by chromatin modifications to promote pre-initiation complex formation. ...The transcription co-activator complex SAGA is recruited to gene promoters by sequence-specific transcriptional activators and by chromatin modifications to promote pre-initiation complex formation. The yeast Tra1 subunit is the major target of acidic activators such as Gal4, VP16, or Gcn4 but little is known about its structural organization. The 430 kDa Tra1 subunit and its human homolog the transformation/transcription domain-associated protein TRRAP are members of the phosphatidyl 3-kinase-related kinase (PIKK) family. Here, we present the cryo-EM structure of the entire SAGA complex where the major target of activator binding, the 430 kDa Tra1 protein, is resolved with an average resolution of 5.7 Å. The high content of alpha-helices in Tra1 enabled tracing of the majority of its main chain. Our results highlight the integration of Tra1 within the major epigenetic regulator SAGA.
History
DepositionJul 7, 2017-
Header (metadata) releaseJul 26, 2017-
Map releaseAug 2, 2017-
UpdateMay 15, 2024-
Current statusMay 15, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0429
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.0429
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5oej
  • Surface level: 0.0429
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_3790.png

Downloads & links

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Map

FileDownload / File: emd_3790.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (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: 0.0429 / Movie #1: 0.0429
Minimum - Maximum-0.113799304 - 0.19173111
Average (Standard dev.)0.00015792702 (±0.005900146)
SymmetrySpace group: 1
Details

EMDB XML:

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

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.11.11.1
M x/y/z320320320
origin x/y/z0.0000.0000.000
length x/y/z352.000352.000352.000
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS320320320
D min/max/mean-0.1140.1920.000

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Supplemental data

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Sample components

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Entire : Tra1 subunit of SAGA complex

EntireName: Tra1 subunit of SAGA complex
Components
  • Complex: Tra1 subunit of SAGA complex
    • Protein or peptide: Tra1 subunit within the chromatin modifying complex SAGA

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Supramolecule #1: Tra1 subunit of SAGA complex

SupramoleculeName: Tra1 subunit of SAGA complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Komagataella pastoris (fungus)
Molecular weightTheoretical: 400 KDa

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Macromolecule #1: Tra1 subunit within the chromatin modifying complex SAGA

MacromoleculeName: Tra1 subunit within the chromatin modifying complex SAGA
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Komagataella pastoris (fungus)
Molecular weightTheoretical: 438.055344 KDa
SequenceString: MLHVVQLDDF ATRLKAAEDY QSKHSVLSEI CDSLETFNAA QDYEYFLKSL IPLFIDVLKE VPVSFVANSP ENKLRNITLE ILHRIPAND ALQAYSNEIV DTLMDLLKVE NELNGILCMK AITTLHKTFK ASLQEKVHPF IDIVIEIYSN IPQVVEEQFN G NQIDSKEN ...String:
MLHVVQLDDF ATRLKAAEDY QSKHSVLSEI CDSLETFNAA QDYEYFLKSL IPLFIDVLKE VPVSFVANSP ENKLRNITLE ILHRIPAND ALQAYSNEIV DTLMDLLKVE NELNGILCMK AITTLHKTFK ASLQEKVHPF IDIVIEIYSN IPQVVEEQFN G NQIDSKEN VDSTSRPNSP SFSSQSDDSK QLAQAMFSFK TLAESPITMV SLYSSYKELA ASSLGNFIPH VMKVLSLEVA KQ AEARKAA EEKGIILVNV CKEITNRANY GEFIIGQVKA ASFLAYLFIR RQAQTFLEPY QQAIPDIIIR LLQDCPSELS AAR KELLHA TRHILSTDFR KMFIPKIDLL FDLRVLIGEG FTAYETLRPL AYSTVADFIH NVRDHLTPAQ LWKSVSIYCK NLQD DSLAL TVQIMSAKLL LNLIEKIMRS ESKTESRQLL MVIIDAYTKR FKMLNSRYNG IMKQHATYEK EKQEKQNQER LLTNK LDGT TPSPSDDKKV ELIDEDQDVK MEDPTPEISD QETIKGDNDA STEPQDSEQQ LADFMSLQEY LPIQVSVPPE IDLLKD SRY LFKTLMTFLK TIMIGLKNSN PPSSQNHFNA QNWNETARGF SNEDINILKS LFRECILALR FFSTSKTSLP ASSMKQS FD ITGPNLPITS TKEEKDLMEI FATMFIHIDP ASFNEIVREE LPFMYKQMLD FASLLHIPQF FLASVITSSS FSGILITF L KSKLVDLGEV NIIKSNILIR LFKLCFMSVS LFPAANESVI LPHLNELILK SLKLSTTAKE PLVYFYLIRT LFRSIGGGR FENLYKEIMP LLQVLLESLS KLIHEARRPQ ERDIYVELCL TVPVRLSVLV PHLSYLMKPL VYALNGSQES VSQGLRTLEL CVDNLTAEY FDPIIEPVID DVMEALSKHL KPLPYYHQHS HTTLRILGKL GGRNRTFIKP VDNLKTDSEL FQNVEAMFKI H GLPNEVPL SITPGLSAAF SLLTDPRPRI HYRINSFKYI SGIFQLFLGA TQLPDDYANR LKESMDIILE DTIAPDEPLN KL HHFPVKD IAKYDSQMEL LVKLLESIFY AVSLQEVREE SKALIRGTCN HFILLYFNKM VIDKRKFVRK FSVDNHEGNL FLN ENCIFD AIIYALSSDN SAVRSMGLES VQLIYDSCVE LFGNIDCALK FAPLNVMCSK FIHCCFEEPY HKKLAGCIGL EMML NSLDI PMKYFNARQL EIIRALFYVL RDTAPELPCE VTNTAKRLIL NSLKEWNKEL TRNDVFSSVF QNLVSSLIVD LPNAN EIVR ATAQEALRTL SETTQVPIAT MISPCKHILL APIFGKPLRA LPFQMQIGNI DAITFCMGLE NSFLEYNEEL NRLVQE ALA LVDAEDESLV SAHRISEHKT SEQLVRLRVV CIQLLSLAIT KPEFAAAQQR SNIRVKILVV FFKSLCGRSI EIIRAAH GG LKAVIDLKMK LPKELLQNGL RPMLMNLSDH KKLTVASLEA LSGLLKLFIS YFKVGIGSKL LDHLLAWAQP RTLQQLGS Q DLENNSTVQI IVAILDVFHL LPPTAHKFMN DLMNALLYLE NNLHRCQYSP FREPLAKFLD RFPDESFEYF FNEFSKREI TTRFVYFVGL DSCSSLRAKV LESLPRVRGL LHQEGSAEEK CVRFSNLVDL CESLAASDKE WIKDKEELLG ELLDAGSVCL TLKRSSNVV SPLYFQVDQG FETLQLLYIE YFKSQPLGHE KVFNFIDKIS KEGLPFVLEF DDFIFNEVVK CQDIPTVQQT L DTIIRMTP QVSSLDARVY LYKRIFLPIC IYESEMHGDL SRLSQTENNE LPAWLKSFDS DVWKATGPLV DDYTSTLEDR YR LELMQLT ALLIKGAPTA LTDMRKDIIK FSWNYIKLDD NTSKQAAYVV TAYFISRFDT PSELTTRIFV ALLRCHQIDT RYL VKQALE LLAPVLSERT NSELDWLKWP RRVLSEDGFN ITQVANIYQL IVKFPDLFYP ARDHFIPNII TAMGKLTVMS NTSL ENQQL AIDLAELILK WETKLPKSEK LGSAEETEKE KSVSEDKMDI DVKEETKEDI AERPKAEDQI GGDDSDSSNI LTSED YEVS FAQREACVTF LIRYICISTQ RPSENELGKR ALNILYELLG PKYWSEVTVK LQFFERFLMS SDLNQPSLLG YCLNAL EVL AVALKWKPTT WIIENVSYLQ KLLEKCLRSD NQDIQEILQK VLGIILEAIN KETQGSEEDE PEEVTNFISL IVNIIGE DL SNMTSVAAGV SLCWTLSLYR PNALDSLLPS IMRTFNKLCR DHIAISLQGN QPQSGDFANI EFEAKVTTNL LEKILNLC A ARISSLDDQR RVFLSLLAQL IDRSVDKDML LKVINIVTEW IFKTDFYPTT KEKAGILGKM MIFDLRGEPE LSKKFNQVI VDIFESKELA HTELTARMET AFLFGTRLSD VSIRKKLMSI LSDSLELDID KRLFYIIKDQ NWEYLSDYPW LNQALQLLYG SFHLDSPIR LSPEENTLSP LQSITEGLAR EKSPVEKAPQ NIIDFVAKHN EFLDSVRSLT AGDILNPLID ISYQSAETIH N AWVVVFPV AYSAIESRYE LEFTRALVKL LFKDYHIRQQ DARPNVIKSL LDGVGKCPGL HLPPHLVKYL GSNYNAWYGA IK LLEELSE GQGIDNQKIS DANQDALLEV YMSLQEDDMF YGTWRRRAKY FETNAALSYE QIGIWDKALQ LYEAAQIKAR SGV FPFGES EYSLWEDHWI YCAEKLQHWE ILTELAKHEG FTDLLLECGW RGADWIADRE PLEQSVKTVM DIPTPRRQIF QTFL ALQGF SQQKDTLQDV SRLCDEGIQL TLRKWNALPQ RVTRAHIGLL HTFQQYVELM EASQVYSSLV TTNAQNLDVK SQELK RVLQ AWRERLPNVW DDINIWNDLV TWRQHVFGVI NRVYMPFVPV LQQSNGTNNG NSYAYRGYHE MAWVINRFAH VARKHE MPE VCINQLTKIY TLPNIEIQEA FLKLREQAKC HYQNSSELNT GLDVISNTNL VYFATQQKAE FFTLKGMFLA KLNAKDE AN QAFATAVQID LNLPKAWAEW GFFNDRRFKE NPEEIFHAKN AISCYLQAAG LYKDGKTRKL LCRILWLISL DDAAGSLA K TFEDHHGESP VWYWITFVPQ LLTSLSHKEA KIVRHILIQI AKSYPQSLHF QLRTTKEDYQ AIQRQAMAVN RAEEQSSNK QDTADSVLKN TNTPQPQTRT ETSGTTAESD KKPSIPPKEE QGSPQPSRPA TTQASPQAQS QENGESSQKH PPEIPTTDSR QPWQDVEEI MGILKTAYPL LALSLESLVD QLNQRFKCNA DEDAYRLVIV LYNDGVQQMN RVANPREEVK LPAATEASIS R FADSVLPK NIREVFEQDI IACNPNLETY ISKLRKWRDC LEEKLDRSYG KADLERVSLH LSLFHHQKFE DIEIPGQYLL HK DNNNHFI KIERFLPTLD LVRGSNGCYK RMTIRGNDGS LHPFAVQFPA ARHCRREERI FQLFRIFDDA LSRKVQSRRR NIS LTLPIA VPLSPHIRIL NDDKRYTTLM GIYEEFCRRK GQSRDEPFAY TIQKLRAAFD PRLPKPDIVS VRAEVLASIQ STLV PSTLL KDYYTEKFSN YENYWLFRKQ FTAQYASFIF MTYIMCINSR QPQKIHINEG SGNIWTSEML PTKVATGKTH STAYN NSTL DPAVKAGAPI FYNTESVPFR LTPNIQKFIG EAGLEGILSV YILVIANSLS DSEFDMEQYL SLFVRDEVIS WFAQQH RAS AQTNQLREIV RVNVELLTKR VLQLNHIPNS QNVATQFVLN LISQAVNPRN LAYTDSAWMA YL

UniProtKB: SAGA and NuA4 histone acetyltransferase complexes subunits

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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

Concentration0.2 mg/mL
BufferpH: 8
GridModel: Quantifoil R2/2 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 20 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.018000000000000002 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV / Details: Blot for 1 second before plunging.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
TemperatureMin: 70.0 K / Max: 80.0 K
Specialist opticsSpherical aberration corrector: Microscope has a Cs corrector
Image recordingFilm or detector model: FEI FALCON II (4k x 4k) / Detector mode: INTEGRATING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Digitization - Frames/image: 2-8 / Number grids imaged: 4 / Number real images: 8505 / Average exposure time: 1.0 sec. / Average electron dose: 60.0 e/Å2
Details: Images were collected in movie-mode at 17 frames per second, frame 1 was not acquired. Every two frames were joined together, producing 8 frames per second.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Calibrated defocus max: 3.4 µm / Calibrated defocus min: 1.4000000000000001 µm / Calibrated magnification: 127272 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.001 mm / Nominal defocus max: 3.4 µm / Nominal defocus min: 1.4000000000000001 µm / Nominal magnification: 59000
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: 264901
Startup modelType of model: RANDOM CONICAL TILT
Details: RCT model from previous study: DOI: 10.1016/j.molcel.2004.06.005
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 5.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4) / Number images used: 105916
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: PROJECTION MATCHING
Projection matching processing - Merit function: Maximum likelihood (ML
Software - Name: RELION (ver. 1.4)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

4jsn


Chain - Chain ID: B / Chain - Residue range: 1385-2549 / Chain - Source name: PDB / Chain - Initial model type: experimental model
DetailsSecondary structure restraints were applied in Phenix.
RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-5oej:
Structure of Tra1 subunit within the chromatin modifying complex SAGA

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