Ran-binding protein 9

Definition:

May act as scaffolding protein, and as adapter protein to couple membrane receptors to intracellular signaling pathways (Probable). Acts as a mediator of cell spreading and actin cytoskeleton rearrangement. Core component of the CTLH E3 ubiquitin-protein ligase complex that selectively accepts ubiquitin from UBE2H and mediates ubiquitination and subsequent proteasomal degradation of the transcription factor HBP1. May be involved in signaling of ITGB2/LFA-1 and other integrins. Enhances HGF-MET signaling by recruiting Sos and activating the Ras pathway. Enhances dihydrotestosterone-induced transactivation activity of AR, as well as dexamethasone-induced transactivation activity of NR3C1, but not affect estrogen-induced transactivation. Stabilizes TP73 isoform Alpha, probably by inhibiting its ubiquitination, and increases its proapoptotic activity. Inhibits the kinase activity of DYRK1A and DYRK1B. Inhibits FMR1 binding to RNA.

References:

[1]. Dakun Wang, et al. Activation of Ras/Erk pathway by a novel MET-interacting protein RanBPM. J Biol Chem. 2002 Sep 27;277(39):36216-22. [Content Brief]

[2]. Naoki Harada, et al. RanBP10 acts as a novel coactivator for the androgen receptor. Biochem Biophys Res Commun. 2008 Mar 28;368(1):121-5. [Content Brief]

[3]. Simona Denti, et al. RanBPM is a phosphoprotein that associates with the plasma membrane and interacts with the integrin LFA-1. J Biol Chem. 2004 Mar 26;279(13):13027-34. [Content Brief]

[4]. Sonja Kramer, et al. Protein stability and function of p73 are modulated by a physical interaction with RanBPM in mammalian cultured cells. Oncogene. 2005 Jan 27;24(5):938-44. [Content Brief]

[5]. Manojkumar Valiyaveettil, et al. Novel role of the muskelin-RanBP9 complex as a nucleocytoplasmic mediator of cell morphology regulation. J Cell Biol. 2008 Aug 25;182(4):727-39. [Content Brief]

[6]. Fabienne Lampert, et al. The multi-subunit GID/CTLH E3 ubiquitin ligase promotes cell proliferation and targets the transcription factor Hbp1 for degradation. Elife. 2018 Jun 18;7:e35528. [Content Brief]

[7]. Mira A Rao, et al. RanBPM, a nuclear protein that interacts with and regulates transcriptional activity of androgen receptor and glucocorticoid receptor. J Biol Chem. 2002 Dec 13;277(50):48020-7. [Content Brief]

[8]. Rajesh P Menon, et al. The C terminus of fragile X mental retardation protein interacts with the multi-domain Ran-binding protein in the microtubule-organising centre. J Mol Biol. 2004 Oct 8;343(1):43-53. [Content Brief]

[9]. Yonglong Zou, et al. Serine/threonine kinase Mirk/Dyrk1B is an inhibitor of epithelial cell migration and is negatively regulated by the Met adaptor Ran-binding protein M. J Biol Chem. 2003 Dec 5;278(49):49573-81. [Content Brief]

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