Chromatin epigenetics and nuclear lamina keep the nucleus in shape: Examples from natural and accelerated aging

PS Carollo, V Barra - Biology of the Cell, 2023 - Wiley Online Library
As the repository of genetic information, the cell nucleus must protect DNA integrity from
mechanical stresses. The nuclear lamina, which resides within the nuclear envelope (NE), is …

The molecular functions of MeCP2 in Rett syndrome pathology

O Sharifi, DH Yasui - Frontiers in Genetics, 2021 - frontiersin.org
MeCP2 protein, encoded by the MECP2 gene, binds to DNA and affects transcription.
Outside of this activity the true range of MeCP2 function is still not entirely clear. As MECP2 …

A novel pathogenic mutation of MeCP2 impairs chromatin association independent of protein levels

J Zhou, C Cattoglio, Y Shao, HP Tirumala… - Genes & …, 2023 - genesdev.cshlp.org
Loss-of-function mutations in MECP2 cause Rett syndrome (RTT), a severe neurological
disorder that mainly affects girls. Mutations in MECP2 do occur in males occasionally and …

MeCP2-induced heterochromatin organization is driven by oligomerization-based liquid–liquid phase separation and restricted by DNA methylation

H Zhang, H Romero, A Schmidt, K Gagova, W Qin… - Nucleus, 2022 - Taylor & Francis
Heterochromatin is the highly compacted form of chromatin with various condensation levels
hallmarked by high DNA methylation. MeCP2 is mostly known as a DNA methylation reader …

Deleting Mecp2 from the cerebellum rather than its neuronal subtypes causes a delay in motor learning in mice

NP Achilly, L He, OA Kim, S Ohmae, GJ Wojaczynski… - Elife, 2021 - elifesciences.org
Rett syndrome is a devastating childhood neurological disorder caused by mutations in
MECP2. Of the many symptoms, motor deterioration is a significant problem for patients. In …

[HTML][HTML] Binding to the other side: The AT-Hook DNA-binding domain allows nuclear factors to exploit the DNA minor groove

S Battista, M Fedele, L Secco, AMD Ingo… - International Journal of …, 2024 - mdpi.com
The “AT-hook” is a peculiar DNA-binding domain that interacts with DNA in the minor groove
in correspondence to AT-rich sequences. This domain has been first described in the HMGA …

[HTML][HTML] Cell-type-specific 3D-genome organization and transcription regulation in the brain

S Liu, P Zheng, CY Wang, BB Jia, NR Zemke, B Ren… - bioRxiv, 2023 - ncbi.nlm.nih.gov
Abstract 3D organization of the genome plays a critical role in regulating gene expression.
However, it remains unclear how chromatin organization differs among different cell types in …

MeCP2 binds to methylated DNA independently of phase separation and heterochromatin organisation

R Pantier, M Brown, S Han, K Paton, S Meek… - Nature …, 2024 - nature.com
Correlative evidence has suggested that the methyl-CpG-binding protein MeCP2 contributes
to the formation of heterochromatin condensates via liquid-liquid phase separation. This …

MeCP2 inhibits ischemic neuronal injury by enhancing methylation of the FOXO3a promoter to repress the SPRY2-ZEB1 axis

L Meng, B Feng, L Luan, Z Fang, G Zhao - Experimental & Molecular …, 2022 - nature.com
Abstract Methyl CpG binding protein 2 (MeCP2) is involved in nerve regeneration following
ischemic stroke, but the related mechanism remains unclear. Here, we found low MeCP2 …

Acute MeCP2 loss in adult mice reveals transcriptional and chromatin changes that precede neurological dysfunction and inform pathogenesis

SS Bajikar, J Zhou, R O'Hara, HP Tirumala… - Neuron, 2024 - cell.com
Mutations in the X-linked methyl-CpG-binding protein 2 (MECP2) gene cause Rett
syndrome, a severe childhood neurological disorder. MeCP2 is a well-established …