Nicotiana attenuata      PcG body


※ PcG body introduction

    PcG bodies, termed polycomb bodies, are subnuclear organelles containing polycomb group proteins. They are a kind of PMLOs located in nucleus, which possess liquid-like behavior and are believed to be formed as a result of biological liquid-liquid phase transitions, where an intricate interplay between RNA and intrinsically disordered proteins (IDPs) or hybrid proteins containing ordered domains and intrinsically disordered protein regions (IDPRs) may play an important role, they are formed as a result of highly regulated and reversible liquid-liquid demixing phase separation and represent condensed liquid droplets, which are invariantly enriched in intrinsically disordered proteins (1). They correspond to local accumulations of PcG proteins, which are important epigenetic regulators that control transcription of their target genes (2). Morover, Polycomb body–associated PHC2 was found to interact with the Polycomb repressive complex, which is relevant to the function of polycomb bodies in transcription regulation (3).

Reference
1. Uversky, V. N. (2017) MappingIntrinsically disordered proteins in overcrowded milieu: Membrane-less organelles, phase separation, and intrinsic disorder. Curr Opin Struct Biol, 44, 18-30. PMID: 27838525
2. Smigova, J., Juda, P., Krejci, J., & Raska, I. (2014) MappingStructural basis of polycomb bodies. Folia Biol (Praha), 60 Suppl 1, 13-20. PMID: 25369336
3. Fong, K. W., Li, Y., Wang, W., Ma, W., Li, K., Qi, R. Z., et al. (2013) MappingWhole-genome screening identifies proteins localized to distinct nuclear bodies. J Cell Biol, 203(1), 149-164. PMID: 24127217


There are 12 genes.  Reviewed (0 or Unreviewed (12

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Nia-0917
A4A49_14266
A0A314KMZ6
A4A49_14266
2
LLPS-Nia-0261
A4A49_30936
A0A1J6KE68
A4A49_30936
3
LLPS-Nia-1252
A4A49_41176
A0A1J6K8R3
A4A49_41176
4
LLPS-Nia-0346
A4A49_34688
A0A0A1WC75
AGO1b
5
LLPS-Nia-1733
A4A49_04599
A0A1J6I3V1
CLF_1
6
LLPS-Nia-1098
A4A49_25903
A0A314KLW6
FIE
7
LLPS-Nia-1607
A4A49_22726
A0A1J6IE60
MAP65-3_1
8
LLPS-Nia-0313
A4A49_03413
A0A314L3B3
MSI1
9
LLPS-Nia-0999
A4A49_31983
A0A1J6IUD3
PCNA
10
LLPS-Nia-1675
A4A49_27956
A0A1J6KXH1
RING1A_1
11
LLPS-Nia-2487
A4A49_02503
A0A1J6IPS8
RING1A_2
12
LLPS-Nia-0429
A4A49_04152
A0A314LAX2
SEC_4