The stem cell-supporting small molecule UM171 triggers Cul3-KBTBD4-mediated degradation of ELM2 domain-harboring proteins
Zemaitis, Kristijonas LU ; Ghosh, Sudip LU ; Pyl Hansson, Jenny LU
and Subramaniam, Agatheeswaran
LU
(2023)
In The Journal of biological chemistry
299(5).
- Abstract
- To chemically modulate the ubiquitin-proteasome system for degradation of specific target proteins is currently emerging as an alternative therapeutic modality. Earlier we discovered such properties of the stem cell-supporting small molecule UM171 and identified that members of the CoREST complex (RCOR1 and LSD1) are targeted for degradation. UM171 supports the in vitro propagation of hematopoietic stem cells by transiently perturbing the differentiation-promoting effects of CoREST. Here, we employed global proteomics to map the UM171-targeted proteome and identified the additional target proteins, namely RCOR3, RREB1, ZNF217, and MIER2. Further, we discovered that critical elements recognized by Cul3KBTBD4 ligase in the presence of UM171... (More)
- To chemically modulate the ubiquitin-proteasome system for degradation of specific target proteins is currently emerging as an alternative therapeutic modality. Earlier we discovered such properties of the stem cell-supporting small molecule UM171 and identified that members of the CoREST complex (RCOR1 and LSD1) are targeted for degradation. UM171 supports the in vitro propagation of hematopoietic stem cells by transiently perturbing the differentiation-promoting effects of CoREST. Here, we employed global proteomics to map the UM171-targeted proteome and identified the additional target proteins, namely RCOR3, RREB1, ZNF217, and MIER2. Further, we discovered that critical elements recognized by Cul3KBTBD4 ligase in the presence of UM171 are located within the EGL-27 and MTA1 homology 2 (ELM2) domain of the substrate proteins. Subsequent experiments identified conserved amino acid sites in the N-terminus of the ELM2 domain that are essential for UM171-mediated degradation. Overall, our findings provide a detailed account on the ELM2 degrome targeted by UM171 and identify critical sites required for UM171-mediated degradation of specific substrates. Given the target profile, our results are highly relevant in a clinical context and point towards new therapeutic applications for UM171. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/390a8b89-7143-448d-842e-bddf204f6c29
- author
- Zemaitis, Kristijonas
LU
; Ghosh, Sudip
LU
; Pyl Hansson, Jenny
LU
and Subramaniam, Agatheeswaran
LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of biological chemistry
- volume
- 299
- issue
- 5
- article number
- 104662
- publisher
- American Society for Biochemistry and Molecular Biology
- external identifiers
-
- pmid:36997086
- scopus:85153290418
- ISSN
- 0021-9258
- DOI
- 10.1016/j.jbc.2023.104662
- language
- English
- LU publication?
- yes
- id
- 390a8b89-7143-448d-842e-bddf204f6c29
- date added to LUP
- 2023-03-31 16:47:42
- date last changed
- 2023-06-21 14:29:14
@article{390a8b89-7143-448d-842e-bddf204f6c29,
abstract = {{To chemically modulate the ubiquitin-proteasome system for degradation of specific target proteins is currently emerging as an alternative therapeutic modality. Earlier we discovered such properties of the stem cell-supporting small molecule UM171 and identified that members of the CoREST complex (RCOR1 and LSD1) are targeted for degradation. UM171 supports the in vitro propagation of hematopoietic stem cells by transiently perturbing the differentiation-promoting effects of CoREST. Here, we employed global proteomics to map the UM171-targeted proteome and identified the additional target proteins, namely RCOR3, RREB1, ZNF217, and MIER2. Further, we discovered that critical elements recognized by Cul3KBTBD4 ligase in the presence of UM171 are located within the EGL-27 and MTA1 homology 2 (ELM2) domain of the substrate proteins. Subsequent experiments identified conserved amino acid sites in the N-terminus of the ELM2 domain that are essential for UM171-mediated degradation. Overall, our findings provide a detailed account on the ELM2 degrome targeted by UM171 and identify critical sites required for UM171-mediated degradation of specific substrates. Given the target profile, our results are highly relevant in a clinical context and point towards new therapeutic applications for UM171.}},
author = {{Zemaitis, Kristijonas and Ghosh, Sudip and Pyl Hansson, Jenny and Subramaniam, Agatheeswaran}},
issn = {{0021-9258}},
language = {{eng}},
number = {{5}},
publisher = {{American Society for Biochemistry and Molecular Biology}},
series = {{The Journal of biological chemistry}},
title = {{The stem cell-supporting small molecule UM171 triggers Cul3-KBTBD4-mediated degradation of ELM2 domain-harboring proteins}},
url = {{http://dx.doi.org/10.1016/j.jbc.2023.104662}},
doi = {{10.1016/j.jbc.2023.104662}},
volume = {{299}},
year = {{2023}},
}