Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.
Phospho-ATR (Thr1989) (D5K8W) Rabbit mAb #30632
Filter:
- WB
Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Endogenous |
| MW (kDa) | 300 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Simple Western™ | 1:50 - 1:250 |
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
Phospho-ATR (Thr1989) (D5K8W) Rabbit mAb recognizes endogenous levels of ATR protein only when phosphorylated at Thr1989.
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Thr1989 of human ATR protein.
Background
Ataxia telangiectasia mutated kinase (ATM) and ataxia telangiectasia and Rad3-related kinase (ATR) are PI3 kinase-related kinase (PIKK) family members that phosphorylate multiple substrates on serine or threonine residues that are followed by a glutamine in response to DNA damage or replication blocks (1-3). Despite the essential role of ATR in cell cycle signaling and DNA repair processes, little is known about its activation. ATR was long thought to exist in a constitutively active state in cells, with DNA damage-induced signaling occurring via recruitment of ATR to single stranded DNA and sites of replication stress. Phosphorylation of ATR at serine 428 in response to UV-induced DNA damage has been suggested as a means of activating ATR (4,5). Recent work has shown autophosphorylation of ATR at threonine 1989. Like ATM Ser1981, phosphorylation of ATR Thr1989 occurs in response to DNA damage, indicating that phosphorylation at this site is important in ATR-mediated signaling (6,7).
- Kastan, M.B. and Lim, D.S. (2000) Nat Rev Mol Cell Biol 1, 179-86.
- Abraham, R.T. (2004) DNA Repair (Amst) 3, 883-7.
- Shechter, D. et al. (2004) DNA Repair (Amst) 3, 901-8.
- Vauzour, D. et al. (2007) Arch Biochem Biophys 468, 159-66.
- Smith, J. et al. (2010) Adv Cancer Res 108, 73-112.
- Nam, E.A. et al. (2011) J Biol Chem 286, 28707-14.
- Liu, S. et al. (2011) Mol Cell 43, 192-202.
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For Research Use Only. Not for Use in Diagnostic Procedures.
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