1% for the Planet 标识
R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

Phospho-ATM/ATR Substrate (S*Q) (D23H2/D69H5) MultiMab® Rabbit mAb mix #9607

Filter:
  • WB
  • IP
Western Blotting Image 1: Phospho-ATM/ATR Substrate (S*Q) (D23H2/D69H5) MultiMab®  Rabbit mAb mix
Western blot analysis of extracts from HeLa cells, untreated (-) or UV-treated (2 hr; +), using Phospho-ATM/ATR Substrate (S*Q) (D23H2/D69H5) MultiMab® Rabbit mAb mix. Western blot was imaged using Odyssey® Infrared Imaging System (LI-COR® Biotechnologies).

To Purchase # 9607

Supporting Data

REACTIVITY All
SENSITIVITY Endogenous
MW (kDa)
Source/Isotype Rabbit IgG
Application Key:
  • WB-Western Blotting 
  • IP-Immunoprecipitation 
Species Cross-Reactivity Key:
  • All-All Species Expected 
  • Related Products

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50

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-ATM/ATR Substrate Motif (S*Q) (D23H2/D69H5) MultiMab® Rabbit mAb mix recognizes peptides and proteins containing sequences of phospho-Ser followed by Gln at the +1 position. The antibody does not cross-react with corresponding non-phosphorylated sequences or with other phospho-Ser containing motifs.

Species Reactivity:

All Species Expected

Source / Purification

MultiMab® rabbit monoclonal mix antibodies are prepared by combining individual rabbit monoclonal clones in optimized ratios for the approved applications. Each antibody in the mix is carefully selected based on motif recognition and performance in multiple assays. Each mix is engineered to yield the broadest possible coverage of the modification being studied while ensuring a high degree of specificity for the modification or motif.

Background

Ataxia telangiectasia mutated kinase (ATM) and ataxia telangiectasia and Rad3-related kinase (ATR) are related kinases that regulate cell cycle checkpoints and DNA repair (1). The identified substrates for ATM are p53, p95/NBS1, MDM2, Chk2, BRCA1, CtIP, 4E-BP1, and Chk1 (1,2) The essential requirement for the substrates of ATM/ATR is S*/T*Q. Hydrophobic amino acids at positions -3 and -1, and negatively charged amino acids at position +1 are positive determinants for substrate recognition by these kinases. Positively charged residues surrounding the S*/T*Q are negative determinants for substrate phosphorylation (3). The complex phenotype of AT cells suggests that it likely has additional substrates (3). To better understand the kinase and identify substrates for ATM and the related kinase ATR, CST has developed antibodies that recognize phosphorylated serine or threonine in the S*/T*Q motif.
For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
MultiMab is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit our Trademark Information page.