Source: | Rabbit | Gene Id: | 8878 |
Isotype: | IgG | Swiss Prot: | Q13501 |
purity: | Affinity purification |
Background: |
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 PKCζ (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-κB 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. |
Reactivity | Human, Mouse, Rat |
Tested applications | WB IHC IP IF |
Clonality | Polyclonal Antibody |
Calculated MW | 48 kDa |
Recommended Dilutions |
WB 1:500-1:2000
IHC 1:50-1:200
IF 1:50-1:200
|
Immunogen | A recombinant protein of human SQSTM1 |
Storage | Store at -20°C or -80°C in PBS with 0.02% sodium azide and 50% glycerol. Avoid freeze/thaw cycles. |
Synonym | SQSTM1, A170, OSIL, PDB3, ZIP3, p60, p62, p62B |
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