Phospho-ATF-2 (Thr69/71)/ATF-7 (Thr51/53) (E6A8A) Rabbit mAb #61584

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Supporting Data

REACTIVITY	H M R
SENSITIVITY	Endogenous
MW (kDa)	65, 75
Source/Isotype	Rabbit IgG

Application Key:

WB-Western Blotting
IP-Immunoprecipitation
IF-Immunofluorescence
F-Flow Cytometry

Species Cross-Reactivity Key:

H-Human
M-Mouse
R-Rat

Product Information

Product Usage Information

Application	Dilution
Western Blotting	1:1000
Immunoprecipitation	1:100
Immunofluorescence (Immunocytochemistry)	1:1600 - 1:6400
Flow Cytometry (Fixed/Permeabilized)	1:800 - 1:3200

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.

For a carrier free (BSA and azide free) version of this product see product #94125.

Protocol

Specificity / Sensitivity

Phospho-ATF-2 (Thr69/71)/ATF-7 (Thr51/53) (E6A8A) Rabbit mAb detects endogenous levels of ATF-2 only when dually phosphorylated at both Thr69 and Thr71, and ATF-7 only when dually phosphorylated at both Thr51 and Thr53. It does not recognize ATF-2 singly phosphorylated at either Thr69 or Thr71, and it does not recognize ATF-7 singly phosphorylated at either Thr51 or Thr53.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr69 and Thr71 of human ATF-2 protein.

Background

The transcription factor ATF-2 (also called CRE-BP1) binds to both AP-1 and CRE DNA response elements and is a member of the ATF/CREB family of leucine zipper proteins (1). ATF-2 interacts with a variety of viral oncoproteins and cellular tumor suppressors and is a target of the SAPK/JNK and p38 MAP kinase signaling pathways (2-4). Various forms of cellular stress, including genotoxic agents, inflammatory cytokines, and UV irradiation, stimulate the transcriptional activity of ATF-2. Cellular stress activates ATF-2 by phosphorylation of Thr69 and Thr71 (2-4). Both SAPK and p38 MAPK have been shown to phosphorylate ATF-2 at these sites in vitro and in cells transfected with ATF-2. Mutations of these sites result in the loss of stress-induced transcription by ATF-2 (2-4). In addition, mutations at these sites reduce the ability of E1A and Rb to stimulate gene expression via ATF-2 (2).
ATF-7 is another member of the ATF/CREB family of leucine zipper proteins (5). Similarly, Thr51 and Thr53 (corresponding to Thr69 and Thr71 of ATF-2, respectively) can be phosphorylated under different conditions (6,7).

Database Links

UniProt ID: P17544 , P15336

Entrez-Gene Id: 11016 , 1386

限制使用

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For Research Use Only. Not For Use In Diagnostic Procedures.

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