Results 61 to 70 of about 1,140,604 (331)

Role of cyclic AMP in the control of cell-specific gene expression [PDF]

open access: yes, 1993
Genes have to be expressed in specific cell types at appropriate times of development dependent on external signals. cAMP signaling occurs in all cells, thus raising the question of how this signal transduction pattern is integrated into mechanisms ...
Boshart, Michael   +3 more
core   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

1H-Pyrazol-2-ium hydrogen oxalate

open access: yesActa Crystallographica Section E, 2012
In the title compound, C3H5N2+·C2HO4−, the anions form centrosymmetric dimers through cyclic O—H...O hydrogen-bonding associations [graph set R22(10)].
Chun-Hua Yu, Run-Qiang Zhu
doaj   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Unraveling the role of cAMP signaling in Giardia: insights into PKA-mediated regulation of encystation and subcellular interactions

open access: yesmSphere
cAMP plays an important role as a second messenger in the stage transition of various protozoan parasites. This signaling pathway relies on multiple effectors, such as protein kinase A (PKA), exchange protein activated by cAMP, and cAMP-response element ...
Han-Wei Shih   +2 more
doaj   +1 more source

Guanidinium 3-nitrobenzoate

open access: yesActa Crystallographica Section E, 2010
The title compound, CH6N3+·C7H4NO4−, an anhydrous guanidinium salt, shows a N—H...O hydrogen-bond network in which the guanidinium cation is involved in three cyclic R21(6) hydrogen-bonding associations with separate ...
Graham Smith, Urs D. Wermuth
doaj   +1 more source

The effects of portacaval shunt upon hepatic cholesterol synthesis and cyclic AMP in dogs and baboons [PDF]

open access: yes, 1980
Hepatic cholesterol synthesis, hepatic cyclic AMP, and portal and peripheral insulin and glucagon levels were investigated in nine dogs and three baboons after complete portacaval shunt.
Benichou, J   +3 more
core  

Regulation of anti-inflammatory gene expression in vascular endothelial cells by EPAC1 [PDF]

open access: yes, 2015
Suppressor of cytokine signalling 3 (SOCS3) is a potent inhibitor of pro-inflammatory pathways involved in atherogenesis and the development of neo-intimal hyperplasia (NIH), which contributes to the in-stent re-stenosis responsible for the failure of ...
Palmer, Timothy P., Yarwood, Stephen J.
core   +1 more source

Cyclic AMP and the induction of eukaryotic gene transcription.

open access: yesJournal of Biological Chemistry, 1988
L'AMPc coordonne differentes voies metaboliques allant de la degradation du glycogene dans le foie des mammiferes a la synthese d'enzymes specifiques impliquees dans le metabolisme energetique d'Escherichia coli.
J. William   +6 more
semanticscholar   +1 more source

SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1

open access: yesFEBS Open Bio, EarlyView.
Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl   +13 more
wiley   +1 more source

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