ATP synthase F1 subunits recruited to centromeres by CENP-A are required for male meiosis

Nat Commun. 2018 Jul 13;9(1):2702. doi: 10.1038/s41467-018-05093-9.

Abstract

The histone H3 variant CENP-A epigenetically defines the centromere and is critical for chromosome segregation. Here we report an interaction between CENP-A and subunits of the mitochondrial ATP synthase complex in the germline of male Drosophila. Furthermore, we report that knockdown of CENP-A, as well as subunits ATPsyn-α, -βlike (a testis-specific paralogue of ATPsyn-β) and -γ disrupts sister centromere cohesion in meiotic prophase I. We find that this disruption is likely independent of reduced ATP levels. We identify that ATPsyn-α and -βlike localise to meiotic centromeres and that this localisation is dependent on the presence of CENP-A. We show that ATPsyn-α directly interacts with the N-terminus of CENP-A in vitro and that truncation of its N terminus perturbs sister centromere cohesion in prophase I. We propose that the CENP-A N-terminus recruits ATPsyn-α and -βlike to centromeres to promote sister centromere cohesion in a nuclear function that is independent of oxidative phosphorylation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine Triphosphate / metabolism
  • Animals
  • Centromere / metabolism
  • Centromere / ultrastructure
  • Centromere Protein A / genetics*
  • Centromere Protein A / metabolism
  • Chromosome Segregation
  • Drosophila Proteins / genetics*
  • Drosophila Proteins / metabolism
  • Drosophila melanogaster / genetics*
  • Drosophila melanogaster / metabolism
  • Epigenesis, Genetic
  • Fertility / genetics
  • Histones / genetics
  • Histones / metabolism
  • Male
  • Meiosis*
  • Mitochondrial Proton-Translocating ATPases / genetics*
  • Mitochondrial Proton-Translocating ATPases / metabolism
  • Protein Subunits / genetics*
  • Protein Subunits / metabolism
  • Spermatocytes / cytology
  • Spermatocytes / metabolism*

Substances

  • Centromere Protein A
  • Cid protein, Drosophila
  • Drosophila Proteins
  • Histones
  • Protein Subunits
  • Adenosine Triphosphate
  • Mitochondrial Proton-Translocating ATPases