PRT 4165
Chemical Name: 2-(3-Pyridinylmethylene)-1H-Indene-1,3(2H)-dione
Purity: ≥99%
Biological Activity
PRT 4165 is an inhibitor of Bmi1/Ring1A, subunits of the polycomb repressive complex 1 (PRC1); PRT 4165 inhibits self-ubiquitination (IC50 = 3.9 μM) but does not increase cellular levels of either subunit. PRT 4165 prevents Bmi1/Ring1A-mediated ubiquitination and drug-induced degradation of topoisomerase 2α (Top2α). PRT 4165 inhibits the in vitro E3 ubiquitin ligase activity of RNF2 and a Bmi1/RNF2 complex, inhibiting H2A/H2AX ubiquitination. PRT 4165 blocks polycomb repressor complex (PRC) 1-mediated histone H2A ubiquitination in vitro.Technical Data
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Background References
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A small molecule inhibitor of polycomb repressive complex 1 inhibits ubiquitin signaling at DNA double-strand breaks.
Ismail et al.
J.Biol.Chem., 2013;288:26944 -
The E3 ubiquitin-ligase Bmi1/Ring1A controls the proteasomal degradation of Top2α cleavage complex - a potentially new drug target.
Alchanati et al.
PLoS One, 2009;4:e8104
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Citations for PRT 4165
The citations listed below are publications that use Tocris products. Selected citations for PRT 4165 include:
5 Citations: Showing 1 - 5
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Establishment of developmental gene silencing by ordered polycomb complex recruitment in early zebrafish embryos.
Authors: Patrick J Et al.
Elife 2022;11
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The Polycomb Repressor Complex 1 Drives Double-Negative Prostate Cancer Metastasis by Coordinating Stemness and Immune Suppression.
Authors: Yan Et al.
Cancer Cell 2019;36:139-155.e10
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SCL/TAL1 cooperates with Polycomb RYBP-PRC1 to suppress alternative lineages in blood-fated cells.
Authors: Chagraoui Et al.
Nat Commun 2018;9:5375
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BMI1 regulates androgen receptor in prostate cancer independently of the polycomb repressive complex 1.
Authors: Zhu Et al.
Nat Commun 2018;9:500
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CBFβ-SMMHC Inhibition Triggers Apoptosis by Disrupting MYC Chromatin Dynamics in Acute Myeloid Leukemia.
Authors: Carsten Et al.
Cell 2018;174:172-186.e21
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