Ubiquitin carboxyl-terminal hydrolase isozyme L1 (UCH-L1), a thiol protease belonging to the peptidase C12 family, is involved in the processing of ubiquitin precursors and of ubiquitinated proteins. UCH-L1 recognizes and hydrolyzes peptide bonds at the C-terminal glycine of ubiquitin. UCH-L1 is expressed in neurons and cells of the diffuse neuroendocrine system and thier tumors. Defects in UCH-L1 are the cause of Parkinson disease type 5. Source: Recombinant corresponding to aa2-224 from human UCHL1, fused to His-tag at N-terminal, expressed in E. coli. Molecular Weight: ~23.4kD Applications: Suitable for for the study of enzyme kinetics, screening inhibitors, and selectivity profiling. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: Aliquot to avoid repeated freezing and thawing and store at -70C. Aliquots are stable for 6 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.