SQSTM1 Antibody

This antibody is also available with the following conjugates:
AF350, AF405L, AF405M, AF405S, AF488, AF514, AF532, AF546, AF555, AF568, AF594, AF610, AF635, AF647, AF680, AF700, AF750, AF790, APC, AP, Biotin, Cy3, Cy5.5, Cy5, Cy7, FITC, HRP, PE, Magnetic beads (1 um, 2.8 um, 3 um, 4.5 um, 5 um, 10 um, 15 um, 20 um, 30 um, or different size option)
Please contact sales@hoelzel.de for pricing and availability.

48kDa

Affinity purification

Sequestosome 1 (SQSTM1, p62) is a ubiquitin binding protein involved in cell signaling, oxidative stress, and autophagy (1-4). It was first identified as a protein that binds to the SH2 domain of p56Lck (5), and independently found to interact with PKCzeta (6, 7). SQSTM1 was subsequently found to interact with ubiquitin, providing a scaffold for several signaling proteins and triggering degradation of proteins through the proteasome or lysosome (8). Interaction between SQSTM1 and TRAF6 leads to the K63-linked polyubiquitination of TRAF6 and subsequent activation of the NF-kappaB pathway (9). Protein aggregates formed by SQSTM1 can be degraded by the autophagosome (4, 10, 11). SQSTM1 binds autophagosomal membrane protein LC3/Atg8, bringing SQSTM1-containing protein aggregates to the autophagosome (12). Lysosomal degradation of autophagosomes leads to a decrease in SQSTM1 levels during autophagy; conversely, autophagy inhibitors stabilize SQSTM1 levels. Studies have demonstrated a link between SQSTM1 and oxidative stress. SQSTM1 interacts with KEAP1, which is a cytoplasmic inhibitor of NRF2, a key transcription factor involved in cellular responses to oxidative stress (3). Thus, accumulation of SQSTM1 can lead to an increase in NRF2 activity.