Download MendeleyStructural insights into the human NuA4/TIP60 acetyltransferase and chromatin remodeling complex.
Yang, Z., Mameri, A., Cattoglio, C., Lachance, C., Florez Ariza, A.J., Luo, J., Humbert, J., Sudarshan, D., Banerjea, A., Galloy, M., Fradet-Turcotte, A., Lambert, J.P., Ranish, J.A., Cote, J., Nogales, E.(2024) Science 385: eadl5816-eadl5816
- PubMed: 39088653 Search on PubMedSearch on PubMed Central
- DOI: https://doi.org/10.1126/science.adl5816
- Primary Citation Related Structures:
9C47, 9C4B, 9C57, 9C62, 9C6N - PubMed 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) 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.
- California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, Berkeley, CA, USA.
Organizational Affiliation:
