Sequestosome 1 (SQSTM1) is an autophagic receptor that recruits ubiquitinated cargo to the autophagosome. SQSTM1 contains a ubiquitin associated (UBA) domain that binds to monoubiquitinated Peroxisomal targeting signal 1 receptor (PEX5) in the peroxisome and an LC3 interacting region (LIR) that binds to Microtubule associated proteins 1A/1B light chain 3B (MAP1LC3B)/LC3 associated with the nascent autophagosome (Pankiv S et al. 2007). Subsequently, the peroxisome is degraded by the autophagy machinery.
Bruun, JA, Clausen, TH, Pankiv, S, Lamark, T, Brech, A, Johansen, T, Øvervatn, A, Bjørkøy, G, Outzen, H
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