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ArfGAP with RhoGAP domain, ankyrin repeat and PH domain 3
ARAP3, Centd3, PtdIns(3,4,5)P3-binding protein
This gene encodes a phosphoinositide binding protein containing ARF-GAP, RHO-GAP, RAS-associating, and pleckstrin homology domains. The ARF-GAP and RHO-GAP domains cooperate in mediating rearrangements in the cell cytoskeleton and cell shape. It is a specific PtdIns(3,4,5)P3/PtdIns(3,4)P2-stimulated Arf6-GAP protein. An alternatively spliced transcript has been found for this gene, but its biological validity has not been determined. [provided by RefSeq, Sep 2008] (from
Koronakis et al., Cambridge, United Kingdom. In Mbio, 2014
The Arf6 GAPs ACAP1 and ADAP1 and the Arf1 GAP ASAP1 localized at Salmonella-induced ruffles, which was not the case for the plasma membrane-localized Arf6 GAPs ARAP3 and GIT1 or the Golgi-associated Arf1 GAP1.
Expression studies and functional analysis in zebrafish and mice revealed one candidate, ArfGAP with RhoGAP domain, Ankyrin repeat and PH domain 3 (ARAP3), which is down-regulated in HLT mouse lymphatic vessels and necessary for lymphatic vascular development in mice and zebrafish.
Shaw et al., Leicester, United Kingdom. In Plos One, 2013
We also identified dominant clonal variants that progressed from tumor to node, including SNVs in TP53 and ARAP3, which mediates rearrangements to the cytoskeleton and cell shape, and an insertion in TOP2A, the expression of which is significantly associated with tumor proliferation and can segregate breast cancers by outcome.
Wu et al., Gaithersburg, United States. In Mol Immunol, 2012
Our results indicate that antibodies obtained from our phage library that target ɛ-migis bind to a variety of human cells irrespective of mIgE expression, possibly due to homology between ɛ-migis and a region of phosphoinositide-binding protein (ARAP3).
Tong et al., Hangzhou, China. In Int J Biochem Cell Biol, 2012
Inhibition of PI3K by a specific inhibitor or inhibition of Arf and Rho GAP adapter protein 3 (ARAP3, a phosphatidylinositol (PtdIns)(3,4,5)P(3) binding protein) by ARAP3 siRNA led to the recovery of RhoA and FAK activities.