2022
Phosphorylation of HORMA-domain protein HTP-3 at Serine 285 is dispensable for crossover formation
DAS, Debabrata, Shalini TRIVEDI, Jitka BLAŽÍČKOVÁ, Swathi ARUR, Nicola SILVA et. al.Základní údaje
Originální název
Phosphorylation of HORMA-domain protein HTP-3 at Serine 285 is dispensable for crossover formation
Autoři
DAS, Debabrata, Shalini TRIVEDI (356 Indie, domácí), Jitka BLAŽÍČKOVÁ (203 Česká republika, domácí), Swathi ARUR a Nicola SILVA (380 Itálie, garant, domácí)
Vydání
G3-Genes, Genomes, Genetics, CARY, OXFORD UNIV PRESS INC, 2022, 2160-1836
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10603 Genetics and heredity
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.600
Kód RIV
RIV/00216224:14110/22:00128180
Organizační jednotka
Lékařská fakulta
UT WoS
000786255000001
Klíčová slova anglicky
Caenorhabditis elegans meiosis; HORMA-domain proteins; HTP-3
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 8. 2024 10:25, Mgr. Michal Petr
Anotace
V originále
Generation of functional gametes is accomplished through a multilayered and finely orchestrated succession of events during meiotic progression. In the Caenorhabditis elegans germline, the HORMA-domain-containing protein HTP-3 plays pivotal roles for the establishment of chromosome axes and the efficient induction of programmed DNA double-strand breaks, both of which are crucial for crossover formation. Double-strand breaks allow for accurate chromosome segregation during the first meiotic division and therefore are an essential requirement for the production of healthy gametes. Phosphorylation-dependent regulation of HORMAD protein plays important roles in controlling meiotic chromosome behavior. Here, we document a phospho-site in HTP-3 at Serine 285 that is constitutively phosphorylated during meiotic prophase I. pHTP-3(S285) localization overlaps with panHTP-3 except in nuclei undergoing physiological apoptosis, in which pHTP-3 is absent. Surprisingly, we observed that phosphorylation of HTP-3 at S285 is independent of the canonical kinases that control meiotic progression in nematodes. During meiosis, the htp-3(S285A) mutant displays accelerated RAD-51 turnover, but no other meiotic abnormalities. Altogether, these data indicate that the Ser285 phosphorylation is independent of canonical meiotic protein kinases and does not regulate HTP-3-dependent meiotic processes. We propose a model wherein phosphorylation of HTP-3 occurs through noncanonical or redundant meiotic kinases and/or is likely redundant with additional phospho-sites for function in vivo.
Návaznosti
GA20-08819S, projekt VaV |
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LM2018129, projekt VaV |
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MUNI/A/1418/2021, interní kód MU |
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