|Reactivity||Human, Mouse, Rat|
|Calculated MW||20987 Da|
|Other Names||Ras-related protein Rap-1A, C21KG, G-22K, GTP-binding protein smg p21A, Ras-related protein Krev-1, RAP1A, KREV1|
|Target/Specificity||A synthetic peptide corresponding to residues near the N-terminus of human Rap 1 was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Rap-1 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Induces morphological reversion of a cell line transformed by a Ras oncogene. Counteracts the mitogenic function of Ras, at least partly because it can interact with Ras GAPs and RAF in a competitive manner. Together with ITGB1BP1, regulates KRIT1 localization to microtubules and membranes. Plays a role in nerve growth factor (NGF)-induced neurite outgrowth. Plays a role in the regulation of embryonic blood vessel formation. Involved in the establishment of basal endothelial barrier function. May be involved in the regulation of the vascular endothelial growth factor receptor KDR expression at endothelial cell-cell junctions.|
|Cellular Location||Cell membrane; Lipid-anchor. Cytoplasm. Cytoplasm, perinuclear region. Cell junction. Early endosome. Note=Recruited from early endosome to late endosome compartment after nerve growth factor (NGF) stimulation Localized with RAPGEF2 at cell-cell junctions (By similarity) Colocalized with RAPGEF2 in the perinuclear region.|
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Provided below are standard protocols that you may find useful for product applications.
Rap1, also known as Krev-1 and smg p21, is a member of the Ras super family of GTPases closely related to Ras. Two known isoforms of Rap1 exists, Rap1A and Rap1B which share 95% identity (1-2). As a molecular switch, Rap1 cycles between two conformational states depending on whether GDP bound (active form) or GTP bound (inactive form). Rap1 associates with a subset of Ras effectors including Raf-1, B-Raf, phosphoinositide 3-kinase, Ral GEFs, and PLC (3). Although its function is still unclear, Rap1 has been shown to be involved in the regulation of integrin-mediated cell adhesion (4).
1. Rousseau-Merck, et al. Cytogenet. Cell Genet. 53:2-4, 1990.
2. Kitayama, H et al. Cell 56: 77-84, 1989.
3. Okada, T. et al. Mol. Cell. Biol. 19, 6057-6064, 1990
4. Bos, J. L., et al. Nat. Rev. Mol. Cell. Biol. 2, 369-377, 2001
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