Ras (27H5) Rabbit mAb #3339
Filter:
- WB
Supporting Data
| REACTIVITY | H M R Mk Dm |
| SENSITIVITY | Endogenous |
| MW (kDa) | 21 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
- Mk-Monkey
- Dm-D. melanogaster
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.
Protocol
Specificity / Sensitivity
Ras (27H5) Rabbit mAb detects endogenous levels of total K-Ras, H-Ras and N-Ras proteins.
Species Reactivity:
Human, Mouse, Rat, Monkey, D. melanogaster
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human K-Ras.
Background
The 21 kDa guanine-nucleotide binding proteins (K-Ras, H-Ras, and N-Ras) cycle between active (GTP-bound) and inactive (GDP-bound) forms (1). Receptor tyrosine kinases and G protein-coupled receptors activate Ras, which then stimulates the Raf-MEK-MAPK pathway (2-4). GTPase-activating proteins (GAPs) normally facilitate the inactivation of Ras. However, research studies have shown that in 30% of human tumors, point mutations in Ras prevent the GAP-mediated inhibition of this pathway (5). The most common oncogenic Ras mutation found in tumors is Gly12 to Asp12 (G12D), which prevents Ras inactivation, possibly by increasing the overall rigidity of the protein (5,6).
- Boguski, M.S. and McCormick, F. (1993) Nature 366, 643-54.
- Avruch, J. et al. (1994) Trends Biochem Sci 19, 279-83.
- Buday, L. and Downward, J. (1993) Cell 73, 611-20.
- Huang, D.C. et al. (1993) Mol Cell Biol 13, 2420-31.
- Bos, J.L. (1989) Cancer Res 49, 4682-9.
- Ma, J. and Karplus, M. (1997) J Mol Biol 274, 114-31.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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