Sequence of this protein is as follows: LTGSTPMQVV TCLTRDSYLT HCFLQHLMVV LSSLERTPSP EPVDKDFYSE FGNKTTGKME NYELIHSSRV KFTYPSEEEI GDLTFTVAQK MAEPEKAPAL
Acts either as the functional imidazoline-1 receptor (I1R) candidate or as a membrane-associated mediator of the I1R signaling. Binds numerous imidazoline ligands that induces initiation of cell-signaling cascades triggering to cell survival, growth and migration. Its activation by the agonist rilmenidine induces an increase in phosphorylation of mitogen-activated protein kinases MAPK1 and MAPK3 in rostral ventrolateral medulla (RVLM) neurons that exhibited rilmenidine-evoked hypotension. Blocking its activation with efaroxan abolished rilmenidine-induced mitogen-activated protein kinase phosphorylation in RVLM neurons. Acts as a modulator of Rac-regulated signal transduction pathways. Suppresses Rac1-stimulated cell migration by interacting with PAK1 and inhibiting its kinase activity. Also blocks Pak-independent Rac signaling by interacting with RAC1 and inhibiting Rac1-stimulated NF-kB response element and cyclin D1 promoter activation. Inhibits also LIMK1 kinase activity by reducing LIMK1 'Tyr-508' phosphorylation. Inhibits Rac-induced cell migration and invasion in breast and colon epithelial cells. Inhibits lamellipodia formation, when overexpressed. Plays a role in protection against apoptosis. Involved in association with IRS4 in the enhancement of insulin activation of MAPK1 and MAPK3. When overexpressed, induces a redistribution of cell surface ITGA5 integrin to intracellular endosomal structures.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: hIRAS; I-1; I-1 receptor candidate protein; I1R; I1R candidate protein; Imidazoline receptor 1; imidazoline receptor antisera selected; Imidazoline receptor antisera-selected protein; Imidazoline-1 receptor; Imidazoline-1 receptor candidate protein; Nischarin
Gene Aliases: hIRAS; I-1; IR1; IRAS; KIAA0975; NISCH
UniProt ID: (Human) Q9Y2I1
Entrez Gene ID: (Human) 11188
Molecular Function: enzyme modulator