Nucleolar organization and ribosomal DNA stability in response to DNA damage

S Boukoura, DH Larsen - Current Opinion in Cell Biology, 2024 - Elsevier
Eukaryotic nuclei are structured into sub-compartments orchestrating various cellular
functions. The nucleolus is the largest nuclear organelle: a biomolecular condensate with an …

Macromolecular condensation organizes nucleolar sub-phases to set up a pH gradient

MR King, KM Ruff, AZ Lin, A Pant, M Farag… - Cell, 2024 - cell.com
Nucleoli are multicomponent condensates defined by coexisting sub-phases. We identified
distinct intrinsically disordered regions (IDRs), including acidic (D/E) tracts and K-blocks …

Emergent microenvironments of nucleoli

MR King, KM Ruff, RV Pappu - Nucleus, 2024 - Taylor & Francis
In higher eukaryotes, the nucleolus harbors at least three sub-phases that facilitate multiple
functionalities including ribosome biogenesis. The three prominent coexisting sub-phases …

The nucleolus: Coordinating stress response and genomic stability

K González-Arzola - Biochimica et Biophysica Acta (BBA)-Gene Regulatory …, 2024 - Elsevier
The perception that the nucleoli are merely the organelles where ribosome biogenesis
occurs is challenged. Only around 30% of nucleolar proteins are solely involved in …

Did organs precede organisms in the origin of life?

F Baquero, GS Bever, V de Lorenzo… - microLife, 2024 - academic.oup.com
Evolutionary processes acting on populations of organized molecules preceded the origin of
living organisms. These prebiotic entities were independently and repeatedly produced [ie …

Untangling Zebrafish Genetic Annotation: Addressing Complexities and Nomenclature Issues in Orthologous Evaluation of TCOF1 and NOLC1

G Hill-Terán, J Petrich, ML Falcone Ferreyra… - Journal of Molecular …, 2024 - Springer
Treacher Collins syndrome (TCS) is a genetic disorder affecting facial development,
primarily caused by mutations in the TCOF1 gene. TCOF1, along with NOLC1, play …

An RNA condensate model for the origin of life

JL Fine, AM Moses - arXiv preprint arXiv:2412.05396, 2024 - arxiv.org
The RNA World hypothesis predicts that self-replicating RNAs evolved before DNA
genomes and coded proteins. Despite widespread support for the RNA World, self …

[HTML][HTML] Active RNA synthesis patterns nuclear condensates

SF Banani, A Goychuk, P Natarajan, MM Zheng… - …, 2024 - pmc.ncbi.nlm.nih.gov
Biomolecular condensates are membraneless compartments that organize biochemical
processes in cells. In contrast to well-understood mechanisms describing how condensates …

Multivalent 28S rRNA Is the Organizer of the Nucleolus's Multi-layered Architecture

J Wei, Y Zhang, B Ye, X Fan, Y Hu, SQ Xiang, W Ma - bioRxiv, 2024 - biorxiv.org
The nucleolus widely exists in all eukaryotic species. Throughout evolution, two types of
nucleoli have emerged: bipartite, which has two-layered subcompartments, and tripartite …

Did organs precede organisms in the dawn of life?

F Baquero, VF Lanza, C Briones - 2024 - ecoevorxiv.org
Evolutionary processes acting on molecule populations and their assemblies preceded the
origin of living organisms. These prebiotic world entities were (re) produced; that is …