Interaction between sterol regulatory element-binding proteins and liver receptor homolog-1 reciprocally suppresses their transcriptional activities.
Authors:Kanayama T,Arito M,So K,Hachimura S,Inoue J,Sato R
Journal:The Journal of biological chemistry
PubMed ID:17283069
Cytohesins are cytoplasmic ErbB receptor activators.
Authors:Bill A, Schmitz A, Albertoni B, Song JN, Heukamp LC, Walrafen D, Thorwirth F, Verveer PJ, Zimmer S, Meffert L, Schreiber A, Chatterjee S, Thomas RK, Ullrich RT, Lang T, Famulok M,
Journal:Cell
PubMed ID:20946980
'Signaling by ErbB receptors requires the activation of their cytoplasmic kinase domains, which is initiated by ligand binding to the receptor ectodomains. Cytoplasmic factors contributing to the activation are unknown. Here we identify members of the cytohesin protein family as such factors. Cytohesin inhibition decreased ErbB receptor autophosphorylation and signaling, ... More
Cytoskeletal anchoring of GLAST determines susceptibility to brain damage: an identified role for GFAP.
Authors:Sullivan SM, Lee A, Björkman ST, Miller SM, Sullivan RK, Poronnik P, Colditz PB, Pow DV,
Journal:J Biol Chem
PubMed ID:17684014
'Glial fibrillary acidic protein (GFAP) is an enigmatic protein; it currently has no unambiguously defined role. It is expressed in the cytoskeleton of astrocytes in the mammalian brain. We have used co-immunoprecipitation to identify in vivo binding partners for GFAP in the rat and pig brain. We demonstrate interactions between ... More
Oxidative stress modulates complement factor H expression in retinal pigmented epithelial cells by acetylation of FOXO3.
Authors:Wu Z, Lauer TW, Sick A, Hackett SF, Campochiaro PA,
Journal:J Biol Chem
PubMed ID:17558024
'Age-related macular degeneration (AMD), the leading cause of severe vision loss in the elderly, is a complex disease that results from genetic modifications that increase susceptibility to environmental exposures. Smoking, a major source of oxidative stress, increases the incidence and severity of AMD, and antioxidants slow progression, suggesting that oxidative ... More
Identification of residues important for agonist recognition and activation in GPR40.
'GPR40 was formerly an orphan G protein-coupled receptor whose endogenous ligands have recently been identified as free fatty acids (FFAs). The receptor, now named FFA receptor 1, has been implicated in the pathophysiology of type 2 diabetes and is a drug target because of its role in FFA-mediated enhancement of ... More