Structural and Functional Basis of JAMM Deubiquitinating Enzymes in Disease

Biomolecules. 2022 Jun 29;12(7):910. doi: 10.3390/biom12070910.

Abstract

Deubiquitinating enzymes (DUBs) are a group of proteases that are important for maintaining cell homeostasis by regulating the balance between ubiquitination and deubiquitination. As the only known metalloproteinase family of DUBs, JAB1/MPN/Mov34 metalloenzymes (JAMMs) are specifically associated with tumorigenesis and immunological and inflammatory diseases at multiple levels. The far smaller numbers and distinct catalytic mechanism of JAMMs render them attractive drug targets. Currently, several JAMM inhibitors have been successfully developed and have shown promising therapeutic efficacy. To gain greater insight into JAMMs, in this review, we focus on several key proteins in this family, including AMSH, AMSH-LP, BRCC36, Rpn11, and CSN5, and emphatically discuss their structural basis, diverse functions, catalytic mechanism, and current reported inhibitors targeting JAMMs. These advances set the stage for the exploitation of JAMMs as a target for the treatment of various diseases.

Keywords: JAMMs; catalytic mechanism; deubiquitinating enzymes; functions; inhibitors; structural basis.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Deubiquitinating Enzymes
  • Endopeptidases*
  • Peptide Hydrolases*
  • Proteins
  • Ubiquitination

Substances

  • Proteins
  • Endopeptidases
  • Peptide Hydrolases
  • Deubiquitinating Enzymes

Grants and funding

This work was financially supported by the National Natural Science Foundation of China (81970225; 82000257), the Natural Science Foundation of Jiangsu Higher Education Institutions of China (20KJB320006), Scientific Research Topics of Jiangsu Provincial Health Commission (M2021076), the Social Development Project of Yangzhou City (YZ2020087) and the Young Talent Support Project of Jiangsu Provincial Association for Science and Technology.