Nature Communications (Dec 2021)

Structure-guided bifunctional molecules hit a DEUBAD-lacking hRpn13 species upregulated in multiple myeloma

  • Xiuxiu Lu,
  • Venkata R. Sabbasani,
  • Vasty Osei-Amponsa,
  • Christine N. Evans,
  • Julianna C. King,
  • Sergey G. Tarasov,
  • Marzena Dyba,
  • Sudipto Das,
  • King C. Chan,
  • Charles D. Schwieters,
  • Sulbha Choudhari,
  • Caroline Fromont,
  • Yongmei Zhao,
  • Bao Tran,
  • Xiang Chen,
  • Hiroshi Matsuo,
  • Thorkell Andresson,
  • Raj Chari,
  • Rolf E. Swenson,
  • Nadya I. Tarasova,
  • Kylie J. Walters

DOI
https://doi.org/10.1038/s41467-021-27570-4
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 18

Abstract

Read online

Rpn13 is a substrate receptor of the 26S proteasome and an anti-cancer drug target. Here, the authors identify and characterize XL5, a lead compound that binds to the N-terminal Pru domain of human Rpn13 (hRpn13), solve the NMR structure of XL5-ligated hRpn13 Pru and develop XL5-PROTACs that preferentially target an identified hRpn13 Pru fragment present in multiple myeloma cells.