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Updated: Dec 25, 2025

In Vitro Analysis of E3 Ubiquitin Ligase Function
Published on: May 14, 2021
Ubiquitin carboxy-terminal hydrolase L1 - physiology and pathology
Ewa Matuszczak1, Marzena Tylicka2, Marta Diana Komarowska1
1Pediatric Surgery Department, Medical University of Bialystok, Bialystok, Poland.
Abstract:
Ubiquitin C-terminal hydrolase 1 (UCHL1) is an enzyme unique for its multiple activity - both ligase and hydrolase. UCHL1 was first identified as an abundant protein found in the brain and testes, however its expression is not limited to the neuronal compartment. UCHL1 is also highly expressed in carcinomas of various tissue origins, including those from brain, lung, breast, kidney, colon, prostate, pancreas and mesenchymal tissues. Loss-of-function studies and an inhibitor for UCHL1 confirmed the importance of UCHL1 for cancer therapy. So far biological significance of UCHL1 was described in the following processes: spermatogenesis, oncogenesis, angiogenesis, cell proliferation and differentiation in skeletal muscle, inflammation, tissue injury, neuronal injury and neurodegeneration.
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