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RAPGEF2
Members of the RAS (see HRAS; MIM 190020) subfamily of GTPases function in signal transduction as GTP/GDP-regulated switches that cycle between inactive GDP- and active GTP-bound states. Guanine nucleotide exchange factors (GEFs), such as RAPGEF2, serve as RAS activators by promoting acquisition of GTP to maintain the active GTP-bound state and are the key link between cell surface receptors and RAS activation (Rebhun et al., 2000 [PubMed 10934204]).[supplied by OMIM, Mar 2008]
Protein class
Disease related genes, Human disease related genes
Predicted location
Intracellular
Single cell type specificity
Cell type enhanced (Excitatory neurons, Inhibitory neurons, Microglial cells, Oligodendrocytes, Oligodendrocyte precursor cells)
Immune cell specificity
Immune cell enhanced (neutrophil)
Cell line specificity
Cell line enhanced (HMC-1)
Interaction
Interacts with CDH1, CTNNB1 and TJP1 (By similarity). Interacts (via C-terminal domain) with MAGI2 (via PDZ and WW domains); the interaction occurs before or after NGF stimulation. Interacts with KIDINS220 and NTRK1; the interactions occur after NGF stimulation (By similarity). Found in a complex, at least composed of KIDINS220, MAGI2, NTRK1 and RAPGEF2; the complex is mainly formed at late endosomes in a neuronal growth factor (NGF)-dependent manner. Interacts (via C-terminal domain) with NEDD4 (via WW domains); this interaction leads to ubiquitination and degradation via the proteasome pathway in a cAMP-independent manner. Interacts with MAGI1 isoform 3 (via PDZ domain). Interacts with ADRB1 (via C-terminal PDZ motif); the interaction is direct. Interacts (via Ras-associating domain) with RAP1A (via GTP-bound active form). Interacts weakly with HRAS (via GDP- and GTP-bound forms). Interacts (via C-terminal domain) with MAGI2 (via PDZ and WW domains).
Molecular function
Developmental protein, GTPase activation, Guanine-nucleotide releasing factor
More Types Infomation
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- Species Reactivity: Human
- Application: WB
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For Research Use Only. Not For Clinical Use.