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Western blot analysis of Rap1 on a Jurkat cell lysate. Lane 1: 1:500, lane 2: 1:1000, lane 3: 1:2000 dilution of the anti- Rap1 antibody.
Immunofluorescence staining of A431 cells.
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Rap1 is a member of the large Ras superfamily of low molecular weight GTP/GDP binding proteins. Like Ras, the Rap proteins cycle between a GDP-bound inactive form and a GTP-bound active form. Since Ras and Rap have the same amino acid sequence in their putative effector domain (aa. 32-40), it seems likely that they perform either similar or antagonistic functions. Rap1A and Rap1B are highly homologous proteins, differing in only 9 of their 184 amino acids. Overexpression of Rap1A (also known as Krev-1) causes reversion of the phenotype of a Ki-Ras-transformed cell line. In vitro, Rap1 can compete efficiently with p21ras for interaction with Ras-GAP. Though they appear to have similar activities, Rap1 and Ras differ in their cellular localization. Ras is found on the inner surface of the plasma membrane while Rap1 is associated with the Golgi.
This antibody is routinely tested by western blot analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.
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Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims. Comparisons are not made against non-BD technologies, unless otherwise noted.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.