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Canonical and non-canonical PRC1 differentially contribute to the regulation of neural stem cell fate
Neocortex development is characterized by sequential phases of neural progenitor cell (NPC) expansion, neurogenesis and gliogenesis. Polycomb-mediated epigenetic mechanisms are known to play important roles in regulating the lineage potential of NPCs during development. The composition of Polycomb R...
ORGANISM(S): Mus musculus 
2025-01-30 | GSE274747 | GEO
To determine whether the inhibition of DOT1L (EPZ-5675) affects the enrichment of components within specific non-canonical PRC1 (ncPRC1) complexes, we performed rapid immunoprecipitation mass spectrometry of endogenous protein (RIME) of BCOR (ncPRC1.1) and PCGF6 (ncPRC1.6) for human GCB-DLBCL cell l...
ORGANISM(S): Homo sapiens (Human) 
2026-10-19 | PXD061504 | Pride
Heterozygous de novo missense mutations in genes encoding Polycomb-group (PcG) proteins can cause diverse neurodevelopmental disorders (NDDs), but the underlying mechanisms are not yet understood. Here, we identified novel mutations in the two E3-ligases of the Polycomb Repressive complex 1 (PRC1), ...
ORGANISM(S): Mus musculus (Mouse) 
2026-04-06 | PXD059191 | Pride
A Non-canonical BCOR-PRC1.1 Complex Represses Differentiation Programs in Human ESCs
Polycomb repressive complex 1 (PRC1) catalyzes H2A monoubiquitination (uH2A) and regulates pluripotency in embryonic stem cells (ESCs). However the mechanisms controlling PRC1 recruitment and activity are largely unknown. Here we show that Fbxl10 interacts with Ring1B and Nspc1, forming a non-canoni...
ORGANISM(S): Mus musculus 
Polycomb proteins are classical regulators of stem cell self-renewal and cell lineage commitment and are frequently deregulated in cancer. Here we find that the non-canonical PRC1.1 complex, as identified by mass spectrometry-based proteomics, is critically important for human leukemic stem cells. D...
ORGANISM(S): Homo sapiens 
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