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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 | |||||||||||||||||||||
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Title | Negative stain EM structure of the human SAGA coactivator complex (TRRAP, core, splicing module) | |||||||||||||||||||||
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![]() | TRANSCRIPTION / splicing / gene regulation / chromatin | |||||||||||||||||||||
Function / homology | ![]() 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 / splicing factor binding ...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 / splicing factor binding / hepatocyte differentiation / U12-type spliceosomal complex / maintenance of protein location in nucleus / RNA splicing, via transesterification reactions / U2-type precatalytic spliceosome / U2-type spliceosomal complex / U2-type prespliceosome assembly / RNA polymerase binding / limb development / SAGA complex / U2 snRNP / transcription preinitiation complex / precatalytic spliceosome / RNA polymerase II general transcription initiation factor activity / transcription factor TFIID complex / 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 / embryonic placenta development / U2 snRNA binding / somitogenesis / regulation of DNA repair / RNA polymerase II preinitiation complex assembly / gastrulation / RNA Polymerase II Pre-transcription Events / TBP-class protein binding / catalytic step 2 spliceosome / visual perception / mRNA Splicing - Major Pathway / RNA splicing / male germ cell nucleus / nuclear estrogen receptor binding / transcription coregulator activity / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / spliceosomal complex / promoter-specific chromatin binding / mRNA transcription by RNA polymerase II / negative regulation of protein catabolic process / mRNA splicing, via spliceosome / multicellular organism growth / autophagy / microtubule cytoskeleton organization / G1/S transition of mitotic cell cycle / cytoplasmic ribonucleoprotein granule / nuclear matrix / transcription corepressor activity / HATs acetylate histones / microtubule cytoskeleton / positive regulation of cell growth / DNA-binding transcription factor binding / Regulation of TP53 Activity through Phosphorylation / transcription by RNA polymerase II / transcription coactivator activity / protein stabilization / Ub-specific processing proteases / nuclear speck / chromatin remodeling / protein heterodimerization activity / focal adhesion / apoptotic process / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / protein-containing complex binding / negative regulation of apoptotic process / positive regulation of DNA-templated transcription / 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 / cytosol / cytoplasm Similarity search - Function | |||||||||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / negative staining / Resolution: 19.09 Å | |||||||||||||||||||||
![]() | Herbst, D.A. / Esbin, M.N. / Nogales, E. | |||||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() 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. | |||||||||||||||||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 2.1 MB | Display | ![]() |
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-Related structure data
Related structure data | ![]() 23028MC ![]() 7ktrC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
-Protein , 8 types, 8 molecules ABCDFIJN
#1: Protein | Mass: 419168.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#2: Protein | Mass: 66223.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#3: Protein | Mass: 88129.070 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#4: Protein | Mass: 83013.664 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: SUPT7L, KIAA0764 / Production host: ![]() |
#6: Protein | Mass: 62027.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#9: Protein | Mass: 35447.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#10: Protein | Mass: 37432.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#11: Protein | Mass: 95597.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Transcription initiation factor TFIID subunit ... , 3 types, 3 molecules EGH
#5: Protein | Mass: 27654.861 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#7: Protein | Mass: 17948.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#8: Protein | Mass: 21731.248 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Splicing factor 3B subunit ... , 2 types, 2 molecules ST
#12: Protein | Mass: 135718.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#13: Protein | Mass: 10149.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Details
Sequence details | Portions 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: MAFVATQGAT |
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