Product Pathways - Cell Cycle / Checkpoint
SMG-1 (D42D5) Rabbit mAb #9149
|W IP||H Mk||Endogenous||410||Rabbit IgG|
Reactivity Key: H=Human Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Specificity / Sensitivity
SMG-1 (D42D5) Rabbit mAb recognizes endogenous levels of total SMG-1 protein.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human SMG-1 protein.
Western blot analysis of extracts from U-2 OS, 293, and MCF7 cells using SMG-1 (D42D5) Rabbit mAb.
SMG-1 is a member of the phosphoinositide 3-kinase-related kinase (PIKK) family, which includes ATM, ATR, mTOR, DNA-PKcs, and TRRAP (1,2). Activated by DNA damage, SMG-1 has been shown to phosphorylate p53 and hUpf1 (SMG-2) (1-4). hUpf1 is a subunit of the surveillance complex that allows degradation of messenger RNA species containing premature termination codons (PTCs). This process, known as nonsense-mediated mRNA decay (NMD), prevents the translation of truncated forms of proteins that may result in gain of function or dominant negative species. NMD occurs under normal cellular conditions as well as in response to damage (5,6). SMG-1 has also been shown to affect cell death receptor signaling and to protect cells from extrinsically induced apoptotic cell death (7).
- Denning, G. et al. (2001) J Biol Chem 276, 22709-14.
- Yamashita, A. et al. (2001) Genes Dev 15, 2215-28.
- Brumbaugh, K.M. et al. (2004) Mol Cell 14, 585-98.
- Ohnishi, T. et al. (2003) Mol Cell 12, 1187-200.
- Li, Z.Y. et al. (2006) Curr Med Chem 13, 1693-705.
- Mendell, J.T. et al. (2004) Nat Genet 36, 1073-8.
- Oliveira, V. et al. (2008) J Biol Chem 283, 13174-84.
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For Research Use Only. Not For Use In Diagnostic Procedures.