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- _7 value "More importantly, we demonstrate that Gq/11 proteins interact with KDR in vivo, and the interaction of Gq/11 proteins with KDR does not require KDR tyrosine phosphorylation. Surprisingly, the Gq/11 antisense oligonucleotide completely inhibits VPF/VEGF-stimulated KDR phosphorylation. Expression of a constitutively active mutant of G11 but not Gq can cause phosphorylation of KDR and MAPK. In addition, a Gbetagamma minigene, hbetaARK1(495), inhibits VPF/VEGF-stimulated HUVEC proliferation, MAPK phosphorylation, and intracellular Ca2+ mobilization but has no effect on KDR phosphorylation. Taken together, this study demonstrates that Gq/11 proteins mediate KDR tyrosine phosphorylation and KDR-mediated HUVEC proliferation through interaction with KDR." provenance.
- _7 wasQuotedFrom 12670961 provenance.