G Protein β1γ2 Subunits Promote Microtubule Assembly

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Phosphorylation affects the ability of tau protein to promote microtubule assembly.

Tau is a family of closely related proteins known for its ability to copolymerize with tubulin, inducing the formation of microtubules. When tau was stripped of phosphate by treatment with alkaline phosphatase it underwent a pronounced change in electrophoretic mobility, probably reflecting a conformational change. The dephosphorylated tau promoted significantly more rapid and more extensive po...

متن کامل

Differential Localization of G Protein βγ Subunits

G protein βγ subunits play essential roles in regulating cellular signaling cascades, yet little is known about their distribution in tissues or their subcellular localization. While previous studies have suggested specific isoforms may exhibit a wide range of distributions throughout the central nervous system, a thorough investigation of the expression patterns of both Gβ and Gγ isoforms with...

متن کامل

A protein factor essential for microtubule assembly.

A heat stable protein essentail for microtubule assembly has been isolated. This protein, which we designate tau (tau), is present in association with tubulin purified from porcine brain by repeated cycles of polymerization. Tau is separated from tubulin by ion exchange chromatography on phosphocellulose. In the absence of tau, tubulin exists entirely as a 6S dimer of two polypeptide chains (al...

متن کامل

G protein fBy subunits stimulate phosphorylation of Shc adapter protein

The mechanism of mitogen-activated protein (MAP) kinase activation by pertussis toxin-sensitive G,coupled receptors is known to involve the fry subunits of heterotrimeric G proteins (Gfry), p2lraS activation, and an as-yet-unidentified tyrosine kinase. To investigate the mechanism of G8y-stimulated p2lras activation, Ggy-mediated tyrosine phosphorylation was examined by overexpressing GPy or a2...

متن کامل

G alpha 12 and G alpha 13 subunits define a fourth class of G protein alpha subunits.

Heterotrimeric guanine nucleotide-binding regulatory proteins (G proteins) are central to the signaling processes of multicellular organisms. We have explored the diversity of the G protein subunits in mammals and found evidence for a large family of genes that encode the alpha subunits. Amino acid sequence comparisons show that the different alpha subunits fall into at least three classes. The...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1997

ISSN: 0021-9258

DOI: 10.1074/jbc.272.50.31576