The H3 histone chaperone NASP(SIM3) escorts CenH3 in Arabidopsis

Varování

Publikace nespadá pod Ústav výpočetní techniky, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.

Autoři	LE GOFF S. KECELI B.N. JERABKOVA H. HECKMANN S. RUTTEN T. COTTERELL S. SCHUBERT V. ROITINGER E. MECHTLER E. FRANKLIN F.C.H. TATOUT C. HOUBEN A. GEELEN D. PROBST A.V. LERMONTOVA Inna
Rok publikování	2020
Druh	Článek v odborném periodiku
Časopis / Zdroj	Plant Journal
Fakulta / Pracoviště MU	Středoevropský technologický institut
Citace
www	https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/tpj.14518
Doi	http://dx.doi.org/10.1111/tpj.14518
Klíčová slova	Arabidopsis thaliana; centromere; kinetochore; CenH3; histone chaperone; NASP(SIM3)
Popis	Centromeres define the chromosomal position where kinetochores form to link the chromosome to microtubules during mitosis and meiosis. Centromere identity is determined by incorporation of a specific histone H3 variant termed CenH3. As for other histones, escort and deposition of CenH3 must be ensured by histone chaperones, which handle the non-nucleosomal CenH3 pool and replenish CenH3 chromatin in dividing cells. Here, we show that the Arabidopsis orthologue of the mammalian NUCLEAR AUTOANTIGENIC SPERM PROTEIN (NASP) and Schizosaccharomyces pombe histone chaperone Sim3 is a soluble nuclear protein that binds the histone variant CenH3 and affects its abundance at the centromeres. NASP(SIM3) is co-expressed with Arabidopsis CenH3 in dividing cells and binds directly to both the N-terminal tail and the histone fold domain of non-nucleosomal CenH3. Reduced NASP(SIM3) expression negatively affects CenH3 deposition, identifying NASP(SIM3) as a CenH3 histone chaperone.
Související projekty:	MSCAfellow@MUNI