USP33 Antibody (1D7) is a high quality monoclonal USP33 antibody (also designated USP33 antibody) suitable for the detection of the USP33 protein of human origin. USP33 Antibody (1D7) is available as the non-conjugated anti-USP33 antibody. The ubiquitin (Ub) pathway involves three sequential enzymatic steps that facilitate the conjugation of Ub and Ub-like molecules to specific protein substrates. Through the use of a wide range of enzymes that can add or remove ubiquitin, the Ub pathway controls many intracellular processes such as signal transduction, transcriptional activation and cell cycle progression. USP33 (ubiquitin specific peptidase 33), also known as VDU1 (VHL-interacting deubiquitinating enzyme 1), is a widely expressed 942 amino acid protein that belongs to the peptidase C19 family of proteins. Containing two DUSP domains and a UBP-type zinc finger, USP33 functions as deubiquitinating enzyme that cleaves ubiquitin residues from both ubiquitinylated proteins and ubiquitin-fused precursors, thereby saving these proteins from proteasomal degradation. In addition, USP33 binds VHL and can be ubiquitinated for degradation in a VHL-dependent manner. Three isoforms of USP33 are expressed due to alternative splicing events.