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Sequence of this protein is as follows: MNRGINEGGD LPEELLRNLY ESIKNEPFKI PEDDGNDLTH TFFNPDREGW LLKLGGRVKT WKRRWFILTD NCLYYFEYTT DKEPRGIIPL ENLSIREVED PRKPNCFELY NPSHKGQVIK ACKTEADGRV VEGNHVVYRI SAPSPEEKEE WMKSIKASIS RDPFYDMLAT RKRRIANKK*
GRP1 (general receptor for phosphoinositides-1) contains a Pleckstrin homology (PH) domain as well as a Sec7 domain. The PH domain has high binding affinity for phosphatidylinositol 3,4,5-trisphosphate Ptdlns(3,4,5)P3), while the Sec7 homology domain is responsible for catalyzing guanine nucleotide exchange of ADP-ribosylation factor (ARF) proteins. GRP1 co-localizes with ARF6 and catalyzes GTP/GDP exchange on ARF6. It is known to interact with Ptdlns(3,4,5)P3 localized to the plasma membrane in vitro and may also be a Ptdlns(3,4,5)P3 receptor. Additionally, GRP1 may regulate protein sorting and membrane trafficking through interaction with the guanosine triphosphate ARF, and may control cell adhesion through interaction with integrins.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: ARF nucleotide-binding site opener 3; Cytohesin-3; General receptor of phosphoinositides 1; Grp1; PH, SEC7 and coiled-coil domain-containing protein 3; pleckstrin homology, Sec7 and coiled-coil domains 3; Protein ARNO3
Gene Aliases: ARNO3; CYTH3; GRP1; PSCD3
UniProt ID: (Human) O43739
Entrez Gene ID: (Human) 9265
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