Auxin-inducible degron-mediated protein depletion in Diplonema papillatum
- 1University of Edinburgh
Abstract
Diplonemids are highly abundant unicellular flagellates that are evolutionarily divergent from traditional model eukaryotes. Diplonema papillatum is a model diplonemid for which several molecular tools have recently been established. However, no method for conditional protein depletion was available. Here, we have adapted an auxin-inducible degron (AID) system in D. papillatum. Depletion of the KIN-A motor protein (a glycomonad-specific component of the chromosomal passenger complex) causes defects in chromosome segregation and cell proliferation. The AID system also successfully depleted a divergent Mad1 protein that localizes at nuclear pores, and a flagellar component, CFAP20. Our study demonstrates the power of the AID system to perform loss-of-function studies in D. papillatum.
Versions
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BibTeX
@misc{clifford2026auxininducible,
title = {{Auxin-inducible degron-mediated protein depletion in Diplonema papillatum}},
author = {G. Clifford and B. Akiyoshi},
howpublished = {bioRxiv},
year = {2026},
month = sep,
doi = {10.64898/2026.09.11.751042},
url = {https://www.biorxiv.org/content/10.64898/2026.09.11.751042v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Auxin-inducible degron-mediated protein depletion in Diplonema papillatum
AU - G. Clifford
AU - B. Akiyoshi
PY - 2026
DA - 2026/09/11
PB - bioRxiv
DO - 10.64898/2026.09.11.751042
UR - https://www.biorxiv.org/content/10.64898/2026.09.11.751042v1
AB - Diplonemids are highly abundant unicellular flagellates that are evolutionarily divergent from traditional model eukaryotes. Diplonema papillatum is a model diplonemid for which several molecular tools have recently been established. However, no method for conditional protein depletion was available. Here, we have adapted an auxin-inducible degron (AID) system in D. papillatum. Depletion of the KIN-A motor protein (a glycomonad-specific component of the chromosomal passenger complex) causes defects in chromosome segregation and cell proliferation. The AID system also successfully depleted a divergent Mad1 protein that localizes at nuclear pores, and a flagellar component, CFAP20. Our study demonstrates the power of the AID system to perform loss-of-function studies in D. papillatum.
ER -