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UFMylation: A Unique & Fashionable Modification for Life.

Authors
  • Wei, Ying1
  • Xu, Xingzhi2
  • 1 Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China. , (China)
  • 2 Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Genomics, proteomics & bioinformatics
Publication Date
Jun 01, 2016
Volume
14
Issue
3
Pages
140–146
Identifiers
DOI: 10.1016/j.gpb.2016.04.001
PMID: 27212118
Source
Medline
Keywords
License
Unknown

Abstract

Ubiquitin-fold modifier 1 (UFM1) is one of the newly-identified ubiquitin-like proteins. Similar to ubiquitin, UFM1 is conjugated to its target proteins by a three-step enzymatic reaction. The UFM1-activating enzyme, ubiquitin-like modifier-activating enzyme 5 (UBA5), serves as the E1 to activate UFM1; UFM1-conjugating enzyme 1 (UFC1) acts as the E2 to transfer the activated UFM1 to the active site of the E2; and the UFM1-specific ligase 1 (UFL1) acts as the E3 to recognize its substrate, transfer, and ligate the UFM1 from E2 to the substrate. This process is called ufmylation. UFM1 chains can be cleaved from its target proteins by UFM1-specific proteases (UfSPs), suggesting that the ufmylation modification is reversible. UFM1 cascade is conserved among nearly all of the eukaryotic organisms, but not in yeast, and associated with several cellular activities including the endoplasmic reticulum stress response and hematopoiesis. Furthermore, the UFM1 cascade is closely related to a series of human diseases. In this review, we summarize the molecular details of this reversible modification process, the recent progress of its functional studies, as well as its implication in tumorigenesis and potential therapeutic targets for cancer.

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