Results 71 to 80 of about 291,615 (215)

Interaction of TFAP2A with the Ku70/80 complex is crucial for HIF‐dependent activation of hypoxia‐inducible genes

open access: yesThe FEBS Journal, EarlyView.
Under normoxic conditions, the SUMOylated fraction of TFAP2A cannot interact with the Ku70/Ku80 complex, nor it can bind to chromatin. The unSUMOylated fraction pre‐occupies the chromatin of a subset of hypoxia‐induced genes together with the Ku70/Ku80 complex for basal euchromatin formation. Under hypoxic conditions, the SUMOylation equilibrium shifts
Amalia Kanoura   +8 more
wiley   +1 more source

The NH2-terminal sequence of the alpha and gamma subunits of eukaryotic initiation factor 2 and the phosphorylation site for the heme-regulated eIF-2 alpha kinase.

open access: hybridJournal of Biological Chemistry, 1986
Rabbit reticulocyte eukaryotic initiation factor 2 was phosphorylated with the heme-regulated alpha subunit of eukaryotic initiation factor 2 kinase, and then the individual subunits were resolved by reversed-phase high performance liquid chromatography. Phosphorylated and unphosphorylated forms of the alpha subunit also were well resolved.
Richard E.H. Wettenhall   +3 more
openalex   +4 more sources

Phase Separation: A New Dimension to Understanding Tumor Biology and Therapy

open access: yesMedComm – Oncology, Volume 4, Issue 2, June 2025.
Liquid–liquid phase separation (LLPS) facilitates the assembly of biomolecular condensates by leveraging weak multivalent interactions. The low‐complexity domains, foldable domains of proteins, and nucleic acids provide multivalent interaction sites among different molecules and contribute to the formation of condensates.
Xingwen Wang   +4 more
wiley   +1 more source

A large-scale analysis of mRNAs expressed by primary mesenchyme cells of the sea urchin embryo [PDF]

open access: yes, 2001
The primary mesenchyme cells (PMCs) of the sea urchin embryo have been an important model system for the analysis of cell behavior during gastrulation.
Cameron, R. Andrew   +5 more
core  

Regulation of the mTOR Complex 1 Pathway by Nutrients, Growth Factors, and Stress [PDF]

open access: yes, 2010
The large serine/threonine protein kinase mTOR regulates cellular and organismal homeostasis by coordinating anabolic and catabolic processes with nutrient, energy, and oxygen availability and growth factor signaling.
Peterson, Timothy Richard   +2 more
core   +1 more source

ER stress in antigen‐presenting cells promotes NKT cell activation through endogenous neutral lipids [PDF]

open access: yes, 2020
CD1d-restricted invariant natural killer T (iNKT) cells constitute a common glycolipid-reactive innate-like T-cell subset with a broad impact on innate and adaptive immunity.
Cheng, Tan‐Yun   +12 more
core   +2 more sources

Orchestrating Neural Development Through mRNA Translation Regulation

open access: yesJournal of Neurochemistry, Volume 169, Issue 6, June 2025.
This review provides an overview of mRNA translation mechanisms that control prenatal brain development, including cortical lamination, progenitor differentiation, and axon guidance, and identifies significant knowledge gaps. Specifically, we focus on mRNA translation regulation through signaling cascades such as the mammalian/mechanistic target of ...
Brandon Rodrigue   +3 more
wiley   +1 more source

The stress sensor GCN2 differentially controls ribosome biogenesis in colon cancer according to the nutritional context

open access: yesMolecular Oncology
Nutrient availability is a key determinant of tumor cell behavior. While nutrient‐rich conditions favor proliferation and tumor growth, scarcity, and particularly glutamine starvation, promotes cell dedifferentiation and chemoresistance.
Marie Piecyk   +21 more
doaj   +1 more source

Uncharged tRNA Activates GCN2 by Displacing the Protein Kinase Moiety from a Bipartite tRNA-Binding Domain [PDF]

open access: yes, 2000
Protein kinase GCN2 regulates translation in amino acid–starved cells by phosphorylating eIF2. GCN2 contains a regulatory domain related to histidyl-tRNA synthetase (HisRS) postulated to bind multiple deacylated tRNAs as a general sensor of starvation ...
Anderson, James T.   +4 more
core   +1 more source

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