CST, 5262S, Atg4C Antibody

Polyclonal Antibody for studying ATG4C. Validated for Western Blotting,Immunoprecipitation. Highly specific and rigorously validated in-house, Atg4C Antibody (CST #5262) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation Specificity / Sensitivity Atg4C Antibody detects endogenous levels of total Atg4C protein. A band of unknown origin is detected at 23kDa. The intensity of this band is reduced by treatment with Atg4C siRNA. Species Reactivity: Human, Mouse, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser430 of human Atg4C. Antibodies are purified by protein A and peptide affinity chromatography. Background Autophagy is a catabolic process for the autophagosomic-lysosomal degradation of bulk cytoplasmic contents. Control of autophagy was largely discovered in yeast and involves proteins encoded by a set of autophagy-related genes (Atg) (1). Formation of autophagic vesicles requires a pair of essential ubiquitin-like conjugation systems, Atg12-Atg5 and Atg8-phosphatidylethanolamine (Atg8-PE), which are widely conserved in eukaryotes (2). Numerous mammalian counterparts to yeast Atg proteins have been described, including three Atg8 proteins (GATE-16, GABARAP, and LC3) and four Atg4 homologs (Atg4A/autophagin-2, Atg4B/autophagin-1, Atg4C/autophagin-3, and Atg4D/autophagin-4) (3-5). The cysteine protease Atg4 is pivotal to autophagosome membrane generation and regulation. Atg4 primes the Atg8 homolog for lipidation by cleaving its carboxy terminus and exposing its glycine residue for E1-like enzyme Atg7. The Atg8 homolog is transferred to the E2-like enzyme Atg3 before forming the Atg8-PE conjugate. During later stages of autophagy, Atg4 can reverse this lipidation event by cleaving PE, thereby recycling the Atg8 homolog (6). Atg4C-deficient mice display a tissue-specific decrease in LC3 lipidation only when under stressful conditions such as prolonged starvation. Mutant mice also exhibit increased susceptibility to the development of chemical carcinogen induced fibrosarcomas suggesting that Atg4C may contribute to events associated with tumor progression (7). Alternate Names APG4 autophagy 4 homolog C; APG4-C; APG4C; ATG4 autophagy related 4 homolog C; ATG4 autophagy related 4 homolog C (S. cerevisiae); ATG4C; AUT-like 1, cysteine endopeptidase; AUT-like 3 cysteine endopeptidase; AUTL1; AUTL3; Autophagin-3; autophagy related 4C cysteine peptidase; Autophagy-related cysteine endopeptidase 3; Autophagy-related protein 4 homolog C; Cysteine protease ATG4C; epididymis secretory sperm binding protein; FLJ14867 Specification REACTIVITY: H M Mk SENSITIVITY: Endogenous MW (kDa): 52 SOURCE: Rabbit