货号 | 64459T |
目标/特异性 | Each antibody in the Autophagy Atg8 Family Antibody Sampler Kit detects endogenous levels of its target protein. Cross-reactivity was not observed between family members. |
供应商 | CST |
背景 | Autophagy is a catabolic process for the autophagosomic-lysosomal degradation of bulk cytoplasmic contents (1,2). Autophagy is generally activated by conditions of nutrient deprivation, but it has also been associated with a number of physiological processes, including development, differentiation, neurodegenerative diseases, infection, and cancer (3). Atg8 is a ubiquitin-like protein that is critical for autophagosome formation. Atg8 is synthesized as a precursor protein that is processed by the cysteine protease Atg4, followed by lipidation with phosphatidylethanolamine (PE) in a ubiqutin-like conjugation pathway involving Atg7 and Atg3 (4). This processing of Atg8, which is described as a conversion from type-I to type-II forms, is frequently described as a marker for autophagy. The type-II form of Atg8 is incorporated into maturing autophagosomes and leads to the recruitment of additional autophagy components, including cargo receptors like SQSTM1/p62. While yeast has a single Atg8 gene, many eukaryotes have at least six orthologs, including three microtubule-associated protein 1 light chain 3 (MAP1LC3/LC3) family members (LC3A, LC3B, and LC3C) and three GABAA receptor associated protein (GABARAP) family members (GABARAP, GABARAPL1/GEC1, and GABARAPL2/GATE-16). While highly conserved, these various family members can have important differences in their post-translational processing, expression profile, and protein interactions including distinct cargo receptor. This complexity within the Atg8 family is critical for selective mechanisms of autophagy that have been reported (5, 6). |
存放说明 | -20C |
参考文献 | 1 . Reggiori, F. and Klionsky, D.J. (2002) Eukaryot Cell 1, 11-21. 2 . Codogno, P. and Meijer, A.J. (2005) Cell Death Differ 12 Suppl 2, 1509-18. 3 . Levine, B. and Yuan, J. (2005) J Clin Invest 115, 2679-88. 4 . Ichimura, Y. et al. (2000) Nature 408, 488-92. 5 . Slobodkin, M.R. and Elazar, Z. (2013) Essays Biochem 55, 51-64. 6 . Schaaf, M.B. et al. (2016) FASEB J 30, 3961-3978. |