Buscar
Mostrando ítems 1-8 de 8
High serum levels of HIF-1 alpha in psoriatic patients correlate with an over-expression of IL-6
(2013)
Angiogenesis has been considered to be an important step in the initiation and progression of chronic diseases such as psoriasis. The hypoxia inducible factor 1 alpha (HIF-1 alpha), a critical hypoxia-induced factor that ...
Cobalt stimulates HIF-1-dependent but inhibits HIF-2-dependent gene expression in liver cancer cells
(2013)
Hypoxia-inducible factors (HIFs) are transcriptional regulators that mediate the cellular response to low oxygen. Although HIF-1 is usually considered as the principal mediator of hypoxic adaptation, several tissues and ...
Cobalt induces hypoxia-inducible factor-1 alpha expression in airway smooth muscle cells by a reactive oxygen species- and PI3K-dependent mechanism
(2004)
Cobalt can mimic hypoxia and has been implicated as a cause of lung defects. However, the effect of cobalt on airway smooth muscle (ASM) cells has not been analyzed in detail. In this article, we use primary cultures of ...
MgcRacGAP, a cytoskeleton regulator, inhibits HIF-1 transcriptional activity by blocking its dimerization
(2013)
Hypoxia inducible factor-1 (HIF-1), a dimeric transcription factor of the bHLH-PAS family, is comprised of HIF-1 alpha, which is inducible by hypoxia and ARNT or HIF-1 beta, which is constitutively expressed. HIF-1 is ...
A complex signaling network involving protein kinase CK2 is required for hepatitis C virus core protein-mediated modulation of the iron-regulatory hepcidin gene expression
(2014)
Hepatitis C virus (HCV) infection is associated with hepatic iron overload and elevated serum iron that correlate to poor antiviral responses. Hepcidin (HAMP), a 25-aa cysteine-rich liver-specific peptide, controls iron ...
Building arks for tRNA: Structure and function of the Arc1p family of non-catalytic tRNA-binding proteins
(2010)
Following the intricate architecture of the eukaryotic cell, protein synthesis involves formation of many macromolecular assemblies, some of which are composed by tRNA-aminoacylation enzymes. Protein-protein and protein-tRNA ...
The intracellular location of two animoacyl-tRNA synthetases depends on complex formation with Arc1p
(2001)
In yeast, two aminoacyl-tRNA synthetases, MetRS and GluRS, are associated with Arc1p. We have studied the mechanism of this complex formation and found that the non-catalytic N-terminally appended domains of MetRS and GluRS ...
The tRNA aminoacylation co-factor Arc1p is excluded from the nucleus by an Xpo1p-dependent mechanism
(2005)
Arc1p, a yeast tRNA-binding protein, forms a complex with the aminoacyl-tRNA synthetases, methionyl tRNA synthetase (MetRS) and glutamyl tRNA synthetase (GluRS). Although this complex localizes normally in the cytoplasm, ...