Linked Life Data

12435612

Source:http://linkedlifedata.com/resource/pubmed/id/12435612

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2002-11-18
pubmed:abstractText
Rho GTPase is required for actin filament assembly and serum response element (SRE)-dependent gene transcription. Certain G protein-coupled receptors (GPCRs) induce Rho-dependent responses, but the intermediary signaling steps are poorly understood. The heterotrimeric Galpha12 family can induce Rho-dependent responses. In contrast, there are conflicting reports on the role of the Galphaq family in Rho signaling. We report that expression of activated Galphaq members, or activation of endogenous Galphaq via GPCR stimulation, induces SRE reporter activation via Rho, and increased GTP-Rho levels. Moreover, microinjection of activated Galphaq in fibroblasts induces actin stress fiber formation via Rho. Galphaq functionally cooperates with Lbc Rho guanine nucleotide exchange factor. Overall, these findings indicate that Galphaq family signals are sufficient to induce Rho-dependent cellular responses.
pubmed:grant
pubmed:language
eng
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:author
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
565-9
pubmed:dateRevised
2009-11-19
pubmed:articleTitle
Activated Galphaq family members induce Rho GTPase activation and Rho-dependent actin filament assembly.
pubmed:affiliation
Physiology Department, 136 Harrison Avenue, Tufts University School of Medicine, Boston, MA 02111, USA.