E3 ubiquitin-protein ligase MARCHF9
Definition:
E3 ubiquitin-protein ligase that may mediate ubiquitination of MHC-I, CD4 and ICAM1, and promote their subsequent endocytosis and sorting to lysosomes via multivesicular bodies. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfer the ubiquitin to targeted substrates.
References:
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[1]. Simon Hoer, et al. MARCH-IX mediates ubiquitination and downregulation of ICAM-1. FEBS Lett. 2007 Jan 9;581(1):45-51. [Content Brief]
[2]. Eric Bartee, et al. Downregulation of major histocompatibility complex class I by human ubiquitin ligases related to viral immune evasion proteins. J Virol. 2004 Feb;78(3):1109-20. [Content Brief]
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