Cellular Autophagy ELISA Kit (LC3-II Quantitation)

Cellular Autophagy ELISA Kit
  • Quantifies LC3-II in intact cells after depletion of cytosolic LC3-I


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Cellular Autophagy ELISA Kit (LC3-II Quantitation)
Catalog Number
48 assays
Manual/Data Sheet Download
SDS Download
Product Details

LC3 is a small 16-18 kDa protein that is found in 3 forms within cells. A pro-form of 125 amino acids becomes cleaved to a 120 amino acid form known as LC3-I. Upon binding to phosphatidylethanolamine (PE), the LC3-II form is generated. LC3-I is found mainly in the cytosol, and LC3-II is found mainly in the membrane fraction.

Upon induction of autophagy by a stress signal such as amino acid starvation, the first step is the formation of autophagosomes.Both LC3-I and LC3-II are seen in healthy cells, but upon induction of autophagy the LC3-II proportion increases as it associates with the membranes of the autophagosomes.

Our Autophagy ELISA Kit (LC3-II Quantitation) uses a selective permeabilization procedure to remove the cytosolic pro-LC3 and LC3-I and retain the autophagosome membrane-bound LC3-II from cells cultured in a 48-well plate. The cells are then probed with an anti-LC3 antibody, followed by an HRP-conjugated secondary antibody. Each kit provides sufficient reagents to perform up to 48 assays.