LC3B antibody

Autophagy, also known as macroautophagy, supplies alternative fuel for cells that are under environmental stress conditions (including starvation, growth factor deprivation, and hypoxia). This highly regulated and catabolic cell process recycles and repurposes pre-existing organelles as well as existing macromolecules and is a very evolutionarily conserved and fundamental process to preserve cells under adverse conditions.

LC3B is subunit component of the LC3 autophagy biomarker associated with microtubule-associated proteins MAP1A and MAP1B and one of the best characterized markers to date. In resting state, it is cytosolic, but upon activation, is lapidated and becomes embedded in the autophagosomal membrane.

LC3B, also known as microtubule-associated protein 1 light chain 3 beta (MAP1LC3B), is an autophagy gene that contributes appreciably to protein degradation. Autophagy is a highly synchronized and dynamic catabolic degradation activity that plays an essential role in cellular maintenance, development, antigen presentation and cell death.

In rodents, MAP1LC3 (Microtubule-associated protein 1 light chain 3) is expressed in the renal visceral epithelial cells, or podocytes. LC3 antibody analysis has shown the protein accumulates in its membrane-bound form, LC3II, following conversion from LC3I.