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Article Dans Une Revue Journal of Biological Chemistry Année : 2016

Structure of UBE2Z Enzyme Provides Functional Insight into Specificity in the FAT10 Protein Conjugation Machinery

Résumé

FAT10 conjugation, a post-translational modification analogous to ubiquitination, specifically requires UBA6 and UBE2Z as its activating (E1) and conjugating (E2) enzymes. Interestingly, these enzymes can also function in ubiquitination. We have determined the crystal structure of UBE2Z and report how the different domains of this E2 enzyme are organized. We further combine our structural data with mutational analyses to understand how specificity is achieved in the FAT10 conjugation pathway. We show that specificity toward UBA6 and UBE2Z lies within the C-terminal CYCI tetrapeptide in FAT10. We also demonstrate that this motif slows down transfer rates for FAT10 from UBA6 onto UBE2Z.
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hal-03182082 , version 1 (26-03-2021)

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Julien Schelpe, Didier Monte, Frederique Dewitte, Titia K. Sixma, Prakash Rucktooa. Structure of UBE2Z Enzyme Provides Functional Insight into Specificity in the FAT10 Protein Conjugation Machinery. Journal of Biological Chemistry, 2016, The Journal of biological chemistry, 291 (2), pp.630-639. ⟨10.1074/jbc.M115.671545⟩. ⟨hal-03182082⟩
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