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Product last modified at: 2025-03-03T12:46:17.800Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77
R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

Phospho-ATM/ATR Substrate Motif [(pS/pT) QG] MultiMab® Rabbit mAb mix #6966

Filter:
  • WB
  • IP
Western Blotting Image 1: Phospho-ATM/ATR Substrate Motif [(pS/pT) QG] MultiMab®  Rabbit mAb mix
Western blot analysis of extracts from HeLa cells, untreated (-) or UV-treated (+, 50 mJ/cm2, 2 hr), usingPhospho-ATM/ATR Substrate Motif [(pS/pT) QG] MultiMab® Rabbit mAb mix. Western blot was imaged using Odyssey® Infrared Imaging System (LI-COR® Biotechnologies).

To Purchase # 6966

Cat. # Size Qty. Price
6966T 20 µl
$187
6966S 100 µl
$431

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 1:100

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 [(pS/pT) QG] MultiMab® Rabbit mAb mix recognizes proteins containing phospho-Ser or phospho-Thr followed by Gln and Gly residues. To some extent, this antibody also recongizes proteins with an S*/T*Q motif.

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.
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