TRIM22 - Function


The protein encoded by this gene is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. This protein localizes to the cytoplasm and its expression is induced by interferon. TRIM22 is also a target gene of the tumor suppressor protein p53.

TRIM22 possesses E3 ubiquitin ligase activity and is able to ubiquitinate itself with the assistance of the E2 enzyme UbcH5B. Furthermore TRIM22 is located in the nucleus and therefore may function as a nuclear E3 ubiquitin ligase.

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