Publikation: The ubiquitin-like modifier FAT10 : much more than a proteasome-targeting signal
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Human leukocyte antigen (HLA)-F adjacent transcript 10 (FAT10) also called ubiquitin D (UBD) is a member of the ubiquitin-like modifier (ULM) family. The FAT10 gene is localized in the MHC class I locus and FAT10 protein expression is mainly restricted to cells and organs of the immune system. In all other cell types and tissues, FAT10 expression is highly inducible by the pro-inflammatory cytokines interferon (IFN)-γ and tumor necrosis factor (TNF). Besides ubiquitin, FAT10 is the only ULM which directly targets its substrates for degradation by the 26S proteasome. This poses the question as to why two ULMs sharing the proteasome-targeting function have evolved and how they differ from each other. This Review summarizes the current knowledge of the special structure of FAT10 and highlights its differences from ubiquitin. We discuss how these differences might result in differential outcomes concerning proteasomal degradation mechanisms and non-covalent target interactions. Moreover, recent insights about the structural and functional impact of FAT10 interacting with specific non-covalent interaction partners are reviewed.
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AICHEM, Annette, Marcus GRÖTTRUP, 2020. The ubiquitin-like modifier FAT10 : much more than a proteasome-targeting signal. In: Journal of Cell Science. Company of Biologists. 2020, 133(14), jcs246041. ISSN 0021-9533. eISSN 1477-9137. Available under: doi: 10.1242/jcs.246041BibTex
@article{Aichem2020-07-21ubiqu-50600, year={2020}, doi={10.1242/jcs.246041}, title={The ubiquitin-like modifier FAT10 : much more than a proteasome-targeting signal}, number={14}, volume={133}, issn={0021-9533}, journal={Journal of Cell Science}, author={Aichem, Annette and Gröttrup, Marcus}, note={Article Number: jcs246041} }
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