LEGARTOVA, Sona, Gabriela LOCHMANOVÁ a Eva BARTOVA. The Highest Density of Phosphorylated Histone H1 Appeared in Prophase and Prometaphase in Parallel with Reduced H3K9me3, and HDAC1 Depletion Increased H1.2/H1.3 and H1.4 Serine 38 Phosphorylation. LIFE-BASEL. SWITZERLAND: MDPI, 2022, roč. 12, č. 6, s. 798-808. ISSN 2075-1729. Dostupné z: https://dx.doi.org/10.3390/life12060798.
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Základní údaje
Originální název The Highest Density of Phosphorylated Histone H1 Appeared in Prophase and Prometaphase in Parallel with Reduced H3K9me3, and HDAC1 Depletion Increased H1.2/H1.3 and H1.4 Serine 38 Phosphorylation
Autoři LEGARTOVA, Sona, Gabriela LOCHMANOVÁ (203 Česká republika, garant, domácí) a Eva BARTOVA.
Vydání LIFE-BASEL, SWITZERLAND, MDPI, 2022, 2075-1729.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10608 Biochemistry and molecular biology
Stát vydavatele Švýcarsko
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 3.200
Kód RIV RIV/00216224:14310/22:00128177
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.3390/life12060798
UT WoS 000816235000001
Klíčová slova anglicky histone H1; histone H3; chromatin; epigenetic; nucleolus; mass spectrometry
Štítky CF PROT, rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Pavla Foltynová, Ph.D., učo 106624. Změněno: 9. 2. 2023 10:44.
Anotace
Background: Variants of linker histone H1 are tissue-specific and are responsible for chromatin compaction accompanying cell differentiation, mitotic chromosome condensation, and apoptosis. Heterochromatinization, as the main feature of these processes, is also associated with pronounced trimethylation of histones H3 at the lysine 9 position (H3K9me3). Methods: By confocal microscopy, we analyzed cell cycle-dependent levels and distribution of phosphorylated histone H1 (H1ph) and H3K9me3. By mass spectrometry, we studied post-translational modifications of linker histones. Results: Phosphorylated histone H1, similarly to H3K9me3, has a comparable level in the G1, S, and G2 phases of the cell cycle. A high density of phosphorylated H1 was inside nucleoli of mouse embryonic stem cells (ESCs). H1ph was also abundant in prophase and prometaphase, while H1ph was absent in anaphase and telophase. H3K9me3 surrounded chromosomal DNA in telophase. This histone modification was barely detectable in the early phases of mitosis. Mass spectrometry revealed several ESC-specific phosphorylation sites of H1. HDAC1 depletion did not change H1 acetylation but potentiated phosphorylation of H1.2/H1.3 and H1.4 at serine 38 positions. Conclusions: Differences in the level and distribution of H1ph and H3K9me3 were revealed during mitotic phases. ESC-specific phosphorylation sites were identified in a linker histone.
Návaznosti
EF18_046/0015974, projekt VaVNázev: Modernizace České infrastruktury pro integrativní strukturní biologii
LM2018127, projekt VaVNázev: Česká infrastruktura pro integrativní strukturní biologii (Akronym: CIISB)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Infrastructure for Integrative Structural Biology
VytisknoutZobrazeno: 25. 4. 2024 22:31