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- PDB-7kts: Negative stain EM structure of the human SAGA coactivator complex... -

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Basic information

Entry
Database: PDB / ID: 7kts
TitleNegative stain EM structure of the human SAGA coactivator complex (TRRAP, core, splicing module)
Components
  • (Splicing factor 3B subunit ...) x 2
  • (Transcription initiation factor TFIID subunit ...) x 3
  • Ataxin-7
  • Isoform 3 of Transcription factor SPT20 homolog
  • STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA
  • TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L
  • TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L
  • Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog
  • Transcriptional adapter 1
  • Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein
KeywordsTRANSCRIPTION / splicing / gene regulation / chromatin
Function / homology
Function and homology information


SAGA-type complex / regulation of somatic stem cell population maintenance / SAGA complex assembly / lateral mesodermal cell differentiation / allantois development / regulation of cellular response to stress / transcription factor TFTC complex / SLIK (SAGA-like) complex / negative regulation of microtubule depolymerization / hepatocyte differentiation ...SAGA-type complex / regulation of somatic stem cell population maintenance / SAGA complex assembly / lateral mesodermal cell differentiation / allantois development / regulation of cellular response to stress / transcription factor TFTC complex / SLIK (SAGA-like) complex / negative regulation of microtubule depolymerization / hepatocyte differentiation / U12-type spliceosomal complex / maintenance of protein location in nucleus / RNA splicing, via transesterification reactions / splicing factor binding / U2-type precatalytic spliceosome / U2-type spliceosomal complex / U2-type prespliceosome assembly / RNA polymerase binding / limb development / SAGA complex / U2 snRNP / transcription preinitiation complex / RNA polymerase II general transcription initiation factor activity / transcription factor TFIID complex / precatalytic spliceosome / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / nucleus organization / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / regulation of RNA splicing / mRNA Splicing - Minor Pathway / histone deacetylase complex / positive regulation of transcription initiation by RNA polymerase II / U2 snRNA binding / embryonic placenta development / somitogenesis / regulation of DNA repair / RNA polymerase II preinitiation complex assembly / gastrulation / catalytic step 2 spliceosome / RNA Polymerase II Pre-transcription Events / visual perception / mRNA Splicing - Major Pathway / RNA splicing / TBP-class protein binding / nuclear estrogen receptor binding / transcription coregulator activity / male germ cell nucleus / transcription initiation at RNA polymerase II promoter / spliceosomal complex / promoter-specific chromatin binding / DNA-templated transcription initiation / mRNA transcription by RNA polymerase II / G1/S transition of mitotic cell cycle / mRNA splicing, via spliceosome / negative regulation of protein catabolic process / autophagy / microtubule cytoskeleton organization / multicellular organism growth / nuclear matrix / cytoplasmic ribonucleoprotein granule / transcription corepressor activity / HATs acetylate histones / microtubule cytoskeleton / positive regulation of cell growth / Regulation of TP53 Activity through Phosphorylation / DNA-binding transcription factor binding / transcription by RNA polymerase II / transcription coactivator activity / Ub-specific processing proteases / protein stabilization / nuclear speck / chromatin remodeling / protein heterodimerization activity / focal adhesion / apoptotic process / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / positive regulation of DNA-templated transcription / protein-containing complex binding / nucleolus / perinuclear region of cytoplasm / enzyme binding / negative regulation of transcription by RNA polymerase II / Golgi apparatus / positive regulation of transcription by RNA polymerase II / DNA binding / RNA binding / extracellular exosome / nucleoplasm / identical protein binding / nucleus / cytoplasm / cytosol
Similarity search - Function
STAGA complex 65 subunit gamma / : / Transcriptional coactivator Hfi1/Transcriptional adapter 1 / Transcriptional regulator of RNA polII, SAGA, subunit / Transcription factor Spt20 / Spt20-like, SEP domain / Spt20, SEP domain / SCA7 domain / SCA7, zinc-binding domain / SCA7 domain profile. ...STAGA complex 65 subunit gamma / : / Transcriptional coactivator Hfi1/Transcriptional adapter 1 / Transcriptional regulator of RNA polII, SAGA, subunit / Transcription factor Spt20 / Spt20-like, SEP domain / Spt20, SEP domain / SCA7 domain / SCA7, zinc-binding domain / SCA7 domain profile. / Tra1, HEAT repeat ring region / Tra1, HEAT repeat central region / Tra1 HEAT repeat central region / Tra1 HEAT repeat ring region / Transcription initiation factor IID, subunit 13 / Transcription initiation factor IID, 18kD subunit / : / Transcription initiation factor IID, 31kD subunit / Bromodomain associated / Bromodomain transcription factors and PHD domain containing proteins / Bromodomain associated domain / Transcription initiation factor TFIID subunit 12 / Transcription initiation factor TFIID subunit A / TFIID subunit TAF5, NTD2 domain superfamily / WD40 associated region in TFIID subunit, NTD2 domain / Transcription initiation factor TAFII31 / TATA box binding protein associated factor (TAF) / Transcription initiation factor TFIID subunit 12 domain / TFIID subunit TAF5, NTD2 domain / Transcription initiation factor TFIID subunit 6 / TAF6, C-terminal HEAT repeat domain superfamily / TAF6 C-terminal HEAT repeat domain / TAF6, C-terminal HEAT repeat domain / Transcription initiation factor TFIID 23-30kDa subunit / Transcription initiation factor TFIID, 23-30kDa subunit / Splicing factor 3B, subunit 5 / Splicing factor 3B subunit 5/RDS3 complex subunit 10 / Splicing factor 3B subunit 10 (SF3b10) / : / PIK-related kinase, FAT / FAT domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone-fold / Armadillo-like helical / WD domain, G-beta repeat / Armadillo-type fold / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Transformation/transcription domain associated protein / Ataxin-7 / Transcription initiation protein SPT3 homolog / TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L / STAGA complex 65 subunit gamma / Transcription initiation factor TFIID subunit 10 / Splicing factor 3B subunit 3 / Transcription initiation factor TFIID subunit 12 / Transcription factor SPT20 homolog / Transcriptional adapter 1 ...Transformation/transcription domain associated protein / Ataxin-7 / Transcription initiation protein SPT3 homolog / TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L / STAGA complex 65 subunit gamma / Transcription initiation factor TFIID subunit 10 / Splicing factor 3B subunit 3 / Transcription initiation factor TFIID subunit 12 / Transcription factor SPT20 homolog / Transcriptional adapter 1 / Splicing factor 3B subunit 5 / Transcription initiation factor TFIID subunit 9B / TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L
Similarity search - Component
Biological speciesHomo sapiens (human)
unclassified Rhodococcus (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / negative staining / Resolution: 19.09 Å
AuthorsHerbst, D.A. / Esbin, M.N. / Nogales, E.
Funding support United States, European Union, Switzerland, 6items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI)CC30250 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM127018 United States
European Molecular Biology Organization (EMBO)ALTF 1002-2018European Union
Swiss National Science FoundationP2BSP3_181878 Switzerland
Howard Hughes Medical Institute (HHMI)CC34430 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)T32GM098218 United States
CitationJournal: Nat Struct Mol Biol / Year: 2021
Title: Structure of the human SAGA coactivator complex.
Authors: Dominik A Herbst / Meagan N Esbin / Robert K Louder / Claire Dugast-Darzacq / Gina M Dailey / Qianglin Fang / Xavier Darzacq / Robert Tjian / Eva Nogales /
Abstract: The SAGA complex is a regulatory hub involved in gene regulation, chromatin modification, DNA damage repair and signaling. While structures of yeast SAGA (ySAGA) have been reported, there are ...The SAGA complex is a regulatory hub involved in gene regulation, chromatin modification, DNA damage repair and signaling. While structures of yeast SAGA (ySAGA) have been reported, there are noteworthy functional and compositional differences for this complex in metazoans. Here we present the cryogenic-electron microscopy (cryo-EM) structure of human SAGA (hSAGA) and show how the arrangement of distinct structural elements results in a globally divergent organization from that of yeast, with a different interface tethering the core module to the TRRAP subunit, resulting in a dramatically altered geometry of functional elements and with the integration of a metazoan-specific splicing module. Our hSAGA structure reveals the presence of an inositol hexakisphosphate (InsP) binding site in TRRAP and an unusual property of its pseudo-(Ψ)PIKK. Finally, we map human disease mutations, thus providing the needed framework for structure-guided drug design of this important therapeutic target for human developmental diseases and cancer.
History
DepositionNov 24, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 10, 2021Provider: repository / Type: Initial release
Revision 1.1Nov 24, 2021Group: Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.journal_id_ASTM ..._citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.year / _citation_author.name
Revision 1.2Dec 8, 2021Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.3Dec 22, 2021Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.4May 29, 2024Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_3d_fitting_list / pdbx_initial_refinement_model
Item: _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id ..._em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type

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Structure visualization

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Assembly

Deposited unit
A: Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein
B: TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L
C: Isoform 3 of Transcription factor SPT20 homolog
D: STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA
E: Transcription initiation factor TFIID subunit 9B
F: TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L
G: Transcription initiation factor TFIID subunit 12
H: Transcription initiation factor TFIID subunit 10
I: Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog
J: Transcriptional adapter 1
N: Ataxin-7
S: Splicing factor 3B subunit 3
T: Splicing factor 3B subunit 5


Theoretical massNumber of molelcules
Total (without water)1,100,24213
Polymers1,100,24213
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area86410 Å2
ΔGint-527 kcal/mol
Surface area300440 Å2

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Components

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Protein , 8 types, 8 molecules ABCDFIJN

#1: Protein Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein


Mass: 419168.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HeLa / References: UniProt: F2Z2U4
#2: Protein TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L / TAF5L / PCAF-associated factor 65 beta / PAF65-beta


Mass: 66223.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75529
#3: Protein Isoform 3 of Transcription factor SPT20 homolog / p38-interacting protein / p38IP


Mass: 88129.070 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q8NEM7
#4: Protein STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma, DhaA / Adenocarcinoma antigen ART1 / SPTF-associated factor 65 gamma / STAF65gamma / Suppressor of Ty 7-like


Mass: 83013.664 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human), (gene. exp.) unclassified Rhodococcus (bacteria)
Gene: SUPT7L, KIAA0764 / Production host: Homo sapiens (human) / References: UniProt: O94864
#6: Protein TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L,TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L / TAF6L / PCAF-associated factor 65-alpha / PAF65-alpha


Mass: 62027.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9Y6J9
#9: Protein Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog / SPT3-like protein


Mass: 35447.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75486
#10: Protein Transcriptional adapter 1 / SPT3-associated factor 42 / STAF42 / Transcriptional adapter 1-like protein


Mass: 37432.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q96BN2
#11: Protein Ataxin-7 / Spinocerebellar ataxia type 7 protein


Mass: 95597.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O15265

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Transcription initiation factor TFIID subunit ... , 3 types, 3 molecules EGH

#5: Protein Transcription initiation factor TFIID subunit 9B / Neuronal cell death-related protein 7 / DN-7 / Transcription initiation factor TFIID subunit 9-like ...Neuronal cell death-related protein 7 / DN-7 / Transcription initiation factor TFIID subunit 9-like / Transcription-associated factor TAFII31L


Mass: 27654.861 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9HBM6
#7: Protein Transcription initiation factor TFIID subunit 12 / Transcription initiation factor TFIID 20/15 kDa subunits / TAFII20/TAFII15


Mass: 17948.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q16514
#8: Protein Transcription initiation factor TFIID subunit 10 / STAF28 / Transcription initiation factor TFIID 30 kDa subunit / TAFII30


Mass: 21731.248 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q12962

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Splicing factor 3B subunit ... , 2 types, 2 molecules ST

#12: Protein Splicing factor 3B subunit 3 / Pre-mRNA-splicing factor SF3b 130 kDa subunit / SF3b130 / STAF130 / Spliceosome-associated protein ...Pre-mRNA-splicing factor SF3b 130 kDa subunit / SF3b130 / STAF130 / Spliceosome-associated protein 130 / SAP 130


Mass: 135718.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q15393
#13: Protein Splicing factor 3B subunit 5 / SF3b5 / Pre-mRNA-splicing factor SF3b 10 kDa subunit


Mass: 10149.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9BWJ5

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Details

Sequence detailsPortions of chains A, D, F and I were not fully discernible in the map, and so many of the residues ...Portions of chains A, D, F and I were not fully discernible in the map, and so many of the residues were modeled as unknown (UNK) due to not knowing the register in these regions. The full sequence of the chains are as follows. Chain A: MAFVATQGATVVDQTTLMKKYLQFVAALTDVNTPDETKLKMMQEVSENFENVTSSPQYST FLEHIIPRFLTFLQDGEVQFLQEKPAQQLRKLVLEIIHRIPTNEHLRPHTKNVLSVMFRF LETENEENVLICLRIIIELHKQFRPPITQEIHHFLDFVKQIYKELPKVVNRYFENPQVIP ENTVPPPEMVGMITTIAVKVNPEREDSETRTHSIIPRGSLSLKVLAELPIIVVLMYQLYK LNIHNVVAEFVPLIMNTIAIQVSAQARQHKLYNKELYADFIAAQIKTLSFLAYIIRIYQE LVTKYSQQMVKGMLQLLSNCPAETAHLRKELLIAAKHILTTELRNQFIPCMDKLFDESIL IGSGYTARETLRPLAYSTLADLVHHVRQHLPLSDLSLAVQLFAKNIDDESLPSSIQTMSC KLLLNLVDCIRSKSEQESGNGRDVLMRMLEVFVLKFHTIARYQLSAIFKKCKPQSELGAV EAALPGVPTAPAAPGPAPSPAPVPAPPPPPPPPPPATPVTPAPVPPFEKQGEKDKEDKQT FQVTDCRSLVKTLVCGVKTITWGITSCKAPGAQFIPNKQLQPKETQIYIKLVKYAMQALD IYQVQIAGNGQTYIRVANCQTVRMKEEKEVLEHFAGVFTMMNPLTFKEIFQTTVPYMVER ISKNYALQIVANSFLANPTTSALFATILVEYLLDRLPEMGSNVELSNLYLKLFKLVFGSV SLFAAENEQMLKPHLHKIVNSSMELAQTAKEPYNYFLLLRALFRSIGGGSHDLLYQEFLP LLPNLLQGLNMLQSGLHKQHMKDLFVELCLTVPVRLSSLLPYLPMLMDPLVSALNGSQTL VSQGLRTLELCVDNLQPDFLYDHIQPVRAELMQALWRTLRNPADSISHVAYRVLGKFGGS NRKMLKESQKLHYVVTEVQGPSITVEFSDCKASLQLPMEKAIETALDCLKSANTEPYYRR QAWEVIKCFLVAMMSLEDNKHALYQLLAHPNFTEKTIPNVIISHRYKAQDTPARKTFEQA LTGAFMSAVIKDLRPSALPFVASLIRHYTMVAVAQQCGPFLLPCYQVGSQPSTAMFHSEE NGSKGMDPLVLIDAIAICMAYEEKELCKIGEVALAVIFDVASIILGSKERACQLPLFSYI VERLCACCYEQAWYAKLGGVVSIKFLMERLPLTWVLQNQQTFLKALLFVMMDLTGEVSNG AVAMAKTTLEQLLMRCATPLKDEERAEEIVAAQEKSFHHVTHDLVREVTSPNSTVRKQAM HSLQVLAQVTGKSVTVIMEPHKEVLQDMVPPKKHLLRHQPANAQIGLMEGNTFCTTLQPR LFTMDLNVVEHKVFYTELLNLCEAEDSALTKLPCYKSLPSLVPLRIAALNALAACNYLPQ SREKIIAALFKALNSTNSELQEAGEACMRKFLEGATIEVDQIHTHMRPLLMMLGDYRSLT LNVVNRLTSVTRLFPNSFNDKFCDQMMQHLRKWMEVVVITHKGGQRSDGNEMKICSAIIN LFHLIPAAPQTLVKPLLEVVMKTERAMLIEAGSPFREPLIKFLTRHPSQTVELFMMEATL NDPQWSRMFMSFLKHKDARPLRDVLAANPNRFITLLLPGGAQTAVRPGSPSTSTMRLDLQ FQAIKIISIIVKNDDSWLASQHSLVSQLRRVWVSENFQERHRKENMAATNWKEPKLLAYC LLNYCKRNYGDIELLFQLLRAFTGRFLCNMTFLKEYMEEEIPKNYSIAQKRALFFRFVDF NDPNFGDELKAKVLQHILNPAFLYSFEKGEGEQLLGPPNPEGDNPESITSVFITKVLDPE KQADMLDSLRIYLLQYATLLVEHAPHHIHDNNKNRNSKLRRLMTFAWPCLLSKACVDPAC KYSGHLLLAHIIAKFAIHKKIVLQVFHSLLKAHAMEARAIVRQAMAILTPAVPARMEDGH QMLTHWTRKIIVEEGHTVPQLVHILHLIVQHFKVYYPVRHHLVQHMVSAMQRLGFTPSVT IEQRRLAVDLSEVVIKWELQRIKDQQPDSDMDPNSSGEGVNSVSSSIKRGLSVDSAQEVK RFRTATGAISAVFGRSQSLPGADSLLAKPIDKQHTDTVVNFLIRVACQVNDNTNTAGSPG EVLSRRCVNLLKTALRPDMWPKSELKLQWFDKLLMTVEQPNQVNYGNICTGLEVLSFLLT VLQSPAILSSFKPLQRGIAACMTCGNTKVLRAVHSLLSRLMSIFPTEPSTSSVASKYEEL ECLYAAVGKVIYEGLTNYEKATNANPSQLFGTLMILKSACSNNPSYIDRLISVFMRSLQK MVREHLNPQAASGSTEATSAGTSELVMLSLELVKTRLAVMSMEMRKNFIQAILTSLIEKS PDAKILRAVVKIVEEWVKNNSPMAANQTPTLREKSILLVKMMTYIEKRFPEDLELNAQFL DLVNYVYRDETLSGSELTAKLEPAFLSGLRCAQPLIRAKFFEVFDNSMKRRVYERLLYVT CSQNWEAMGNHFWIKQCIELLLAVCEKSTPIGTSCQGAMLPSITNVINLADSHDRAAFAM VTHVKQEPRERENSESKEEDVEIDIELAPGDQTSTPKTKELSEKDIGNQLHMLTNRHDKF LDTLREVKTGALLSAFVQLCHISTTLAEKTWVQLFPRLWKILSDRQQHALAGEISPFLCS GSHQVQRDCQPSALNCFVEAMSQCVPPIPIRPCVLKYLGKTHNLWFRSTLMLEHQAFEKG LSLQIKPKQTTEFYEQESITPPQQEILDSLAELYSLLQEEDMWAGLWQKRCKYSETATAI AYEQHGFFEQAQESYEKAMDKAKKEHERSNASPAIFPEYQLWEDHWIRCSKELNQWEALT EYGQSKGHINPYLVLECAWRVSNWTAMKEALVQVEVSCPKEMAWKVNMYRGYLAICHPEE QQLSFIERLVEMASSLAIREWRRLPHVVSHVHTPLLQAAQQIIELQEAAQINAGLQPTNL GRNNSLHDMKTVVKTWRNRLPIVSDDLSHWSSIFMWRQHHYQAIVTAYENSSQHDPSSNN AMLGVHASASAIIQYGKIARKQGLVNVALDILSRIHTIPTVPIVDCFQKIRQQVKCYLQL AGVMGKNECMQGLEVIESTNLKYFTKEMTAEFYALKGMFLAQINKSEEANKAFSAAVQMH DVLVKAWAMWGDYLENIFVKERQLHLGVSAITCYLHACRHQNESKSRKYLAKVLWLLSFD DDKNTLADAVDKYCIGVPPIQWLAWIPQLLTCLVGSEGKLLLNLISQVGRVYPQAVYFPI RTLYLTLKIEQRERYKSDSGQQQPSSVGNQSHSASDPGPIRATAPMWRCSRIMHMQRELH PTLLSSLEGIVDQMVWFRENWHEEVLRQLQQGLAKCYSVAFEKSGAVSDAKITPHTLNFV KKLVSTFGVGLENVSNVSTMFSSAASESLARRAQATAQDPVFQKLKGQFTTDFDFSVPGS MKLHNLISKLKKWIKILEAKTKQLPKFFLIEEKCRFLSNFSAQTAEVEIPGEFLMPKPTH YYIKIARFMPRVEIVQKHNTAARRLYIRGHNGKIYPYLVMNDACLTESRREERVLQLLRL LNPCLEKRKETTKRHLFFTVPRVVAVSPQMRLVEDNPSSLSLVEIYKQRCAKKGIEHDNP ISRYYDRLATVQARGTQASHQVLRDILKEVQSNMVPRSMLKEWALHTFPNATDYWTFRKM FTIQLALIGFAEFVLHLNRLNPEMLQIAQDTGKLNVAYFRFDINDATGDLDANRPVPFRL TPNISEFLTTIGVSGPLTASMIAVARCFAQPNFKVDGILKTVLRDEIIAWHKKTQEDTSS PLSAAGQPENMDSQQLVSLVQKAVTAIMTRLHNLAQFEGGESKVNTLVAAANSLDNLCRM DPAWHPWL Chain D: MNLQRYWGEIPISSSQTNRSSFDLLPREFRLVEVHDPPLHQPSANKPKPPTMLDIPSEPC SLTIHTIQLIQHNRRLRNLIATAQAQNQQQTEGVKTEESEPLPSCPGSPPLPDDLLPLDC KNPNAPFQIRHSDPESDFYRGKGEPVTELSWHSCRQLLYQAVATILAHAGFDCANESVLE TLTDVAHEYCLKFTKLLRFAVDREARLGQTPFPDVMEQVFHEVGIGSVLSLQKFWQHRIK DYHSYMLQISKQLSEEYERIVNPEKATEDAKPVKIKEEPVSDITFPVSEELEADLASGDQ SLPMGVLGAQSERFPSNLEVEASPQASSAEVNASPLWNLAHVKMEPQESEEGNVSGHGVL GSDVFEEPMSGMSEAGIPQSPDDSDSSYGSHSTDSLMGSSPVFNQRCKKRMRKIGTSGED LYFQSGGSMAEIGTGFPFDPHYVEVLGERMHYVDVGPRDGTPVLFLHGNPTSSYVWRNII PHVAPTHRCIAPDLIGMGKSDKPDLGYFFDDHVRFMDAFIEALGLEEVVLVIHDWGSALG FHWAKRNPERVKGIAFMEFIRPIPTWDEWPEFARETFQAFRTTDVGRKLIIDQNVFIEGT LPMGVVRPLTEVEMDHYREPFLNPVDREPLWRFPNELPIAGEPANIVALVEEYMDWLHQS PVPKLLFWGTPGVLIPPAEAARLAKSLPNCKAVDIGPGLNLLQEDNPDLIGSEIARWLST LEISGDYKDHDGDYKDHDIDYKDDDDKGS Chain F: MSEREERRFVEIPRESVRLMAESTGLELSDEVAALLAEDVCYRLREATQNSSQFMKHTKR RKLTVEDFNRALRWSSVEAVCGYGSQEALPMRPAREGELYFPEDREVNLVELALATNIPK GCAETAVRVHVSYLDGKGNLAPQGSVPSAVSSLTDDLLKYYHQVTRAVLGDDPQLMKVAL QDLQTNSKIGALLPYFVYVVSGVKSVSHDLEQLHRLLQVARSLFRNPHLCLGPYVRCLVG SVLYCVLEPLAASINPLNDHWTLRDGAALLLSHIFWTHGDLVSGLYQHILLSLQKILADP VRPLCCHYGAVVGLHALGWKAVERVLYPHLSTYWTNLQAVLDDYSVSNAQVKADGHKVYG AILVAVERLLKMKAQAAEPNRGGPGGRGCRRLDDLPWDSLLFQESSSGGGAEPSFGSGLP LPPGGAGPEDPSLSVTLADIYRELYAFFGDSLATRFGTGQPAPTAPRPPGDKKEPAAAPD SVRKMPQLTASAIVSPHGDESPRGSGGGGPASASGPAASESRPLPRVHRARGAPRQQGPG TGTRDVFQKSRFAPRGAPHFRFIIAGRQAGRRCRGRLFQTAFPAPYGPSPASRYVQKLPM IGRTSRPARRWALSDYSLYLPL Chain I: MNNTAASPMSTATSSSGRSTGKSISFATELQSMMYSLGDARRPLHETAVLVEDVVHTQLI NLLQQAAEVSQLRGARVITPEDLLFLMRKDKKKLRRLLKYMFIRDYKSKIVKGIDEDDLL EDKLSGSNNANKRQKIAQDFLNSIDQTGELLAMFEDDEIDEVKQERMERAERQTRIMDSA QYAEFCESRQLSFSKKASKFRDWLDCSSMEIKPNVVAMEILAYLAYETVAQLVDLALLVR QDMVTKAGDPFSHAISATFIQYHNSAESTAACGVEAHSDAIQPCHIREAIRRYSHRIGPL SPFTNAYRRNGMAFLAC

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeDetailsEntity IDParent-IDSource
1human SAGACOMPLEXendogeneous human SAGA purified from HeLa cellsall0MULTIPLE SOURCES
2human SAGACOMPLEXendogeneous human SAGA purified from HeLa cells#1-#3, #5-#131NATURAL
3STAGA complex 65 subunit gammaCOMPLEX#41RECOMBINANT
Molecular weightValue: 1.420272 MDa / Experimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-IDStrainTissue
12Homo sapiens (human)9606HeLacervix
23Homo sapiens (human)9606HeLacervix
33unclassified Rhodococcus (bacteria)192944
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
Details: Buffers were freshly prepared and 0.22 um filtered.
Buffer component
IDConc.NameFormulaBuffer-ID
125 mM4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid1
2200 mMsodium chlorideNaCl1
30.2 mMEthylenediaminetetraacetic acid1
46 mMmagnesium chlorideMgCl21
53 % (w/v)D(+)trehalose1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: YES / Vitrification applied: NO
Details: The sample was crosslinked with 1 mM bis(sulfosuccinimidyl)suberate (BS3) prior to freezing
EM stainingType: NEGATIVE / Material: uranyl formate
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Homemade

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Electron microscopy imaging

MicroscopyModel: FEI TECNAI 20
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 120 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal magnification: 80000 X / Nominal defocus max: 3900 nm / Nominal defocus min: 400 nm / Cs: 2.2 mm / Alignment procedure: BASIC
Specimen holderSpecimen holder model: SIDE ENTRY, EUCENTRIC
Image recordingElectron dose: 35 e/Å2 / Film or detector model: GATAN ULTRASCAN 4000 (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 745

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Processing

SoftwareName: PHENIX / Version: 1.18.2_3874: / Classification: refinement
EM software
IDNameVersionCategory
2Leginonimage acquisition
4CTFFIND4.7.0CTF correction
7Coot0.8.9.2model fitting
9RELION3.1initial Euler assignment
10RELION3.1final Euler assignment
11RELION3.1classification
12RELION3.13D reconstruction
13PHENIX1.18.2-3874model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 45790
3D reconstructionResolution: 19.09 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 3157 / Algorithm: FOURIER SPACE / Num. of class averages: 3 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model building

3D fitting-ID: 1 / Accession code: 5IFE / Initial refinement model-ID: 1 / PDB-ID: 5IFE

5ife

/ Source name: PDB / Type: experimental model

IDPdb chain-IDPdb chain residue range
1B15-80
2A1-1217
RefinementDetails: No high-resolution structure of the TAF6L HEAT domain (F154-F374) is available. A homology model for this region (based on PDB 6MZL) was generated using SwissModel. To reflect the model ...Details: No high-resolution structure of the TAF6L HEAT domain (F154-F374) is available. A homology model for this region (based on PDB 6MZL) was generated using SwissModel. To reflect the model uncertainty it was deposited as UNKs

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