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33263
CHOP Control Cell Extracts
Experimental Controls

CHOP Control Cell Extracts #33263

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  1. WB

Western blot analysis of CHOP Control Cell Extracts using CHOP (L63F7) Mouse mAb #2895 (left) and CHOP (D46F1) Rabbit mAb (right) #5554.

Product Usage Information

Boil for 3 minutes prior to use. Load 10 µl of untreated and thapsigargin treated CHOP Control Cell Extracts per lane.

Storage:

Supplied in SDS Sample Buffer: 62.5 mM Tris- HCl (pH 6.8 at 25°C), 2% w/v SDS, 10% glycerol, 50 mM DTT, 0.01% w/v bromophenol blue or phenol red. Store at –20°C, or at –80°C for long-term storage.

Product Description

CHOP Control Cell Extracts (C2C12 Untreated): Total cell extracts from C2C12 cells serve as a negative control. Supplied in SDS Sample Buffer.

CHOP Control Cell Extracts (C2C12 +Thapsigargin): Total cell extracts from C2C12 cells treated with thapsigargin (300 nM, 2 hr) serve as a positive control.

This lysate pair is produced as a control for western blotting of CHOP and other ER Stress proteins.

Background

CHOP was identified as a C/EBP-homologous protein that inhibits C/EBP and LAP in a dominant-negative manner (1). CHOP expression is induced by certain cellular stresses including starvation and the induced CHOP suppresses cell cycle progression from G1 to S phase (2). Later it was shown that, during ER stress, the level of CHOP expression is elevated and CHOP functions to mediate programmed cell death (3). Studies also found that CHOP mediates the activation of GADD34 and Ero1-Lα expression during ER stress. GADD34 in turn dephosphorylates phospho-Ser51 of eIF2α thereby stimulating protein synthesis. Ero1-Lα promotes oxidative stress inside the endoplasmic reticulum (ER) (4). The role of CHOP in the programmed cell death of ER-stressed cells is correlated with its role promoting protein synthesis and oxidative stress inside the ER (4).

  1. Ron, D. and Habener, J.F. (1992) Genes Dev 6, 439-53.
  2. Barone, M.V. et al. (1994) Genes Dev 8, 453-64.
  3. Zinszner, H. et al. (1998) Genes Dev 12, 982-95.
  4. Marciniak, S.J. et al. (2004) Genes Dev 18, 3066-77.
For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

To Purchase # 33263S
製品番号 サイズ 価格 在庫
33263S
100 µl  (10 western blots)

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