Results 81 to 90 of about 5,966,093 (336)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Longitudinal analysis of invariant natural killer T cell activation reveals a cMAF-associated transcriptional state of NKT10 cells

open access: yeseLife, 2022
Innate T cells, including CD1d-restricted invariant natural killer T (iNKT) cells, are characterized by their rapid activation in response to non-peptide antigens, such as lipids. While the transcriptional profiles of naive, effector, and memory adaptive
Harry Kane   +9 more
doaj   +1 more source

The RNA Polymerase II Core Promoter in Drosophila. [PDF]

open access: yes, 2019
Transcription by RNA polymerase II initiates at the core promoter, which is sometimes referred to as the "gateway to transcription." Here, we describe the properties of the RNA polymerase II core promoter in Drosophila The core promoter is at a strategic
Kadonaga, James T   +2 more
core   +1 more source

Accumulation of tissue factor in endothelial cells induces cell apoptosis, mediated through p38 and p53 activation [PDF]

open access: yes, 2015
We previously reported that high levels of tissue factor (TF) can induce cellular apoptosis in endothelial. In this study, TF-mediated mechanisms of induction of apoptosis were explored.
Collier, Mary E. W.   +3 more
core   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

open access: yesFEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Bidirectional transcription directs both transcriptional gene activation and suppression in human cells. [PDF]

open access: yesPLoS Genetics, 2008
Small RNAs targeted to gene promoters in human cells have been shown to modulate both transcriptional gene suppression and activation. However, the mechanism involved in transcriptional activation has remained poorly defined, and an endogenous RNA ...
Kevin V Morris   +4 more
doaj   +1 more source

Ampk regulates IgD expression but not energy stress with B cell activation. [PDF]

open access: yes, 2019
Ampk is an energy gatekeeper that responds to decreases in ATP by inhibiting energy-consuming anabolic processes and promoting energy-generating catabolic processes.
Ahsan, Fasih M   +9 more
core   +1 more source

Microenvironment and tumor cells: two targets for new molecular therapies of hepatocellular carcinoma. [PDF]

open access: yes, 2018
Hepatocellular carcinoma (HCC), is one of the most frequent human cancer and is characterized by a high mortality rate. The aggressiveness appears strictly related to the liver pathological background on which cancer develops.
Amicone, Laura, Marchetti, Alessandra
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

HY5 regulates anthocyanin biosynthesis by inducing the transcriptional activation of the MYB75/PAP1 transcription factor in Arabidopsis

open access: yesFEBS Letters, 2013
Several positive transcription factors regulate Arabidopsis anthocyanin biosynthesis. HY5, a component of light‐signaling pathways, and PAP1, an R2R3‐MYB transcription factor, share common regulatory targets on anthocyanin biosynthesis genes.
D. Shin   +7 more
semanticscholar   +1 more source

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