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- EMDB-45180: Second BAF53a of the human TIP60 complex -

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Basic information

Entry
Database: EMDB / ID: EMD-45180
TitleSecond BAF53a of the human TIP60 complex
Map data
Sample
  • Complex: Second BAF53a of the human TIP60 complex
    • Protein or peptide: Actin-like protein 6A
KeywordsChromatin Modification / Gene Regulation
Function / homology
Function and homology information


regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / npBAF complex / brahma complex / neural retina development / GBAF complex / regulation of G0 to G1 transition / RSC-type complex / Ino80 complex / regulation of nucleotide-excision repair ...regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / npBAF complex / brahma complex / neural retina development / GBAF complex / regulation of G0 to G1 transition / RSC-type complex / Ino80 complex / regulation of nucleotide-excision repair / blastocyst formation / regulation of double-strand break repair / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / positive regulation of T cell differentiation / positive regulation of double-strand break repair / spinal cord development / NuA4 histone acetyltransferase complex / regulation of chromosome organization / positive regulation of stem cell population maintenance / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / Regulation of MITF-M-dependent genes involved in pigmentation / regulation of G1/S transition of mitotic cell cycle / regulation of DNA replication / regulation of embryonic development / negative regulation of cell differentiation / positive regulation of myoblast differentiation / positive regulation of double-strand break repair via homologous recombination / regulation of DNA repair / telomere maintenance / positive regulation of DNA repair / DNA Damage Recognition in GG-NER / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / positive regulation of cell differentiation / kinetochore / RMTs methylate histone arginines / nuclear matrix / UCH proteinases / nucleosome / nervous system development / HATs acetylate histones / regulation of apoptotic process / DNA recombination / transcription coactivator activity / regulation of cell cycle / chromatin remodeling / DNA repair / positive regulation of cell population proliferation / chromatin binding / regulation of transcription by RNA polymerase II / regulation of DNA-templated transcription / chromatin / positive regulation of DNA-templated transcription / signal transduction / protein-containing complex / nucleoplasm / nucleus / plasma membrane
Similarity search - Function
Actin, conserved site / Actins signature 2. / Actin / Actin family / Actin / ATPase, nucleotide binding domain
Similarity search - Domain/homology
Actin-like protein 6A
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsYang Z / Mameri A / Florez Ariza AJ / Cote J / Nogales E
Funding support United States, Canada, 4 items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States
Canadian Institutes of Health Research (CIHR) Canada
Canada Research Chairs Canada
CitationJournal: Science / Year: 2024
Title: Structural insights into the human NuA4/TIP60 acetyltransferase and chromatin remodeling complex.
Authors: Zhenlin Yang / Amel Mameri / Claudia Cattoglio / Catherine Lachance / Alfredo Jose Florez Ariza / Jie Luo / Jonathan Humbert / Deepthi Sudarshan / Arul Banerjea / Maxime Galloy / Amélie ...Authors: Zhenlin Yang / Amel Mameri / Claudia Cattoglio / Catherine Lachance / Alfredo Jose Florez Ariza / Jie Luo / Jonathan Humbert / Deepthi Sudarshan / Arul Banerjea / Maxime Galloy / Amélie Fradet-Turcotte / Jean-Philippe Lambert / Jeff A Ranish / Jacques Côté / Eva Nogales /
Abstract: The human nucleosome acetyltransferase of histone H4 (NuA4)/Tat-interactive protein, 60 kilodalton (TIP60) coactivator complex, a fusion of the yeast switch/sucrose nonfermentable related 1 (SWR1) ...The human nucleosome acetyltransferase of histone H4 (NuA4)/Tat-interactive protein, 60 kilodalton (TIP60) coactivator complex, a fusion of the yeast switch/sucrose nonfermentable related 1 (SWR1) and NuA4 complexes, both incorporates the histone variant H2A.Z into nucleosomes and acetylates histones H4, H2A, and H2A.Z to regulate gene expression and maintain genome stability. Our cryo-electron microscopy studies show that, within the NuA4/TIP60 complex, the E1A binding protein P400 (EP400) subunit serves as a scaffold holding the different functional modules in specific positions, creating a distinct arrangement of the actin-related protein (ARP) module. EP400 interacts with the transformation/transcription domain-associated protein (TRRAP) subunit by using a footprint that overlaps with that of the Spt-Ada-Gcn5 acetyltransferase (SAGA) complex, preventing the formation of a hybrid complex. Loss of the TRRAP subunit leads to mislocalization of NuA4/TIP60, resulting in the redistribution of H2A.Z and its acetylation across the genome, emphasizing the dual functionality of NuA4/TIP60 as a single macromolecular assembly.
History
DepositionJun 3, 2024-
Header (metadata) releaseAug 14, 2024-
Map releaseAug 14, 2024-
UpdateSep 11, 2024-
Current statusSep 11, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_45180.png

Downloads & links

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Map

FileDownload / File: emd_45180.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

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AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 360 pix.
= 378. Å		1.05 Å/pix.
x 360 pix.
= 378. Å		1.05 Å/pix.
x 360 pix.
= 378. Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.05 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.58
Minimum - Maximum-3.8196092 - 5.256437
Average (Standard dev.)-0.0002176675 (±0.04200821)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 377.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_45180_half_map_1.map
Projections & Slices
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Half map: #2

Fileemd_45180_half_map_2.map
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Sample components

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Entire : Second BAF53a of the human TIP60 complex

EntireName: Second BAF53a of the human TIP60 complex
Components
  • Complex: Second BAF53a of the human TIP60 complex
    • Protein or peptide: Actin-like protein 6A

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Supramolecule #1: Second BAF53a of the human TIP60 complex

SupramoleculeName: Second BAF53a of the human TIP60 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Actin-like protein 6A

MacromoleculeName: Actin-like protein 6A / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 47.509812 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MSGGVYGGDE VGALVFDIGS YTVRAGYAGE DCPKVDFPTA IGMVVERDDG STLMEIDGDK GKQGGPTYYI DTNALRVPRE NMEAISPLK NGMVEDWDSF QAILDHTYKM HVKSEASLHP VLMSEAPWNT RAKREKLTEL MFEHYNIPAF FLCKTAVLTA F ANGRSTGL ...String:
MSGGVYGGDE VGALVFDIGS YTVRAGYAGE DCPKVDFPTA IGMVVERDDG STLMEIDGDK GKQGGPTYYI DTNALRVPRE NMEAISPLK NGMVEDWDSF QAILDHTYKM HVKSEASLHP VLMSEAPWNT RAKREKLTEL MFEHYNIPAF FLCKTAVLTA F ANGRSTGL ILDSGATHTT AIPVHDGYVL QQGIVKSPLA GDFITMQCRE LFQEMNIELV PPYMIASKEA VREGSPANWK RK EKLPQVT RSWHNYMCNC VIQDFQASVL QVSDSTYDEQ VAAQMPTVHY EFPNGYNCDF GAERLKIPEG LFDPSNVKGL SGN TMLGVS HVVTTSVGMC DIDIRPGLYG SVIVAGGNTL IQSFTDRLNR ELSQKTPPSM RLKLIANNTT VERRFSSWIG GSIL ASLGT FQQMWISKQE YEEGGKQCVE RKCP

UniProtKB: Actin-like protein 6A

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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
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: 4D-STEM / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 96931
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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