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Reversible acetylation of alpha-tubulin has been implicated in regulating microtubule stability and function. The distribution of acetylated alpha-tubulin is tightly controlled and stereotypic. Acetylated alpha-tubulin is most abundant in stable microtubules but is absent from dynamic cellular structures such as neuronal growth cones and the leading edges(More)
beta-Arrestins bind to activated seven transmembrane-spanning (7TMS) receptors (G protein-coupled receptors) after the receptors are phosphorylated by G protein-coupled receptor kinases (GRKs), thereby regulating their signaling and internalization. Here, we demonstrate an unexpected and analogous role of beta-arrestin 2 (betaarr2) for the single(More)
The type-II TGF beta receptor mediates many of the biological responses to TGF beta. An examination of the expression of the type-II TGF beta receptor during mouse embryogenesis therefore provides specific information about the role of TGF beta during embryogenesis than has been available to date. We have isolated the genomic murine homologue of the human(More)
Smad proteins are the most well-characterized intracellular effectors of the transforming growth factor beta (TGF-beta) signal. The ability of the Smads to act as transcriptional activators via TGF-beta-induced recruitment to Smad binding elements (SBE) within the promoters of TGF-beta target genes has been firmly established. However, the elucidation of(More)
Alkylphospholipids (ALKs) are a novel class of antitumor agents with an unknown mechanism of action. The first ALK tested in the clinic, miltefosine, has been approved recently in Europe for the local treatment of patients with cutaneous metastasis. Perifosine, the only available oral ALK, is being studied currently in human cancer clinical trials. We have(More)
Microtubule associated protein tau is considered to play roles in some types of human transmissible spongiform encephalopathies (TSE). In this study, the full-length and several truncated human tau proteins were expressed from E. coli and purified. Using GST pull down, co-immunoprecipitation assay and tau-coated ELISA, the molecular interaction between tau(More)
Gliosis of glial fibrillary acidic protein (GFAP) associated astrocytes is considered to be one of the hallmarks of transmissible spongiform encephalopathies (TSEs). In the present study, remarkable GFAP-PrP(Sc) or GFAP-PrP(C) complexes were separately detected in the brain homogenates of 263 K (Scrapie)-infected or normal hamsters by co-immunoprecipitation(More)
iv 0 B Abstract Endoglin, an endothelial cell specific transforming growth factor-β (TGF-β) superfamily co-receptor, has an essential role in angiogenesis, with endoglin null mice having an embryonic lethal phenotype due to defects in angiogenesis and mutations in endoglin resulting in the human vascular disease hereditary, hemorrhagic telangiectasia type(More)
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