Guanine exchange factor of rho gtpase and nucleic acid...

C - Chemistry – Metallurgy – 12 – N

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Details

C12N 15/12 (2006.01) A61K 31/70 (2006.01) A61K 38/17 (2006.01) A61K 48/00 (2006.01) C07K 14/82 (2006.01) C07K 16/32 (2006.01) G01N 33/574 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2263199

The present invention relates to all aspects of a guanine exchange factor (GEF), for example, a Rho-GEF, such as p115 Rho-GEF. A GEF modulates cell signaling pathways, both in in vitro and in vivo, by modulating the activity of a GTPase. By way of illustration, a p115 Rho-GEF, which modulates the activity of a Rho GTPase, is described. However, the present invention relates to other GEFs, especially other Rho-GEFs. The present invention particularly relates to an isolated p115 Rho-GEF polypeptide or fragments of it, a nucleic acid coding for p115 Rho-GEF or fragments of it, and derivatives of the polypeptide and nucleic acid. The invention also relates to methods of using such polypeptides, nucleic acids, or derivatives thereof, e.g., in therapeutics, diagnostics, and as research tools. Another aspect of the present invention involves antibodies and other ligands which recognize p115 Rho-GEF, regulators of p115 Rho-GEF activity, and methods of treating pathological conditions associated or related to a Rho GTPase.

La présente invention concerne tous les aspects d'un facteurs d'échange de guanine (GEF), par exemple un Rho-GEF tel que le p115 Rho-GEF. Un GEF module à la fois in vivo et in vitro les chemins de signalisation des cellules, en modulant l'activité d'une GTPase. On a pris ici le cas d'un p115 Rho-GEF qui module l'activité d'une Rho GTPase. Néanmoins, la présente invention concerne d'autres GEF, particulièrement d'autres Rho-GEF. La présente invention concerne particulièrement un polypeptide p115 Rho-GEF isolé ou des fragments de ce dernier, un acide nucléique codant pour le p115 Rho-GEF ou des fragments de ce dernier, ainsi que des dérivés de ce polypeptide et de l'acide nucléique. L'invention concerne également des procédés d'utilisation de tels polypeptides, d'acides nucléiques, ou des dérivés de ces derniers, par exemple en thérapeutique, pour des diagnostics, ou en tant qu'outils de recherche. Un autre aspect de l'invention implique des anticorps et d'autres ligands qui reconnaissent le p115 Rho-GEF, des régulateurs d'activité du p115 Rho-GEF, et des procédés pour traiter les états pathologiques associés ou concernant une Rho GTPase.

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