Amborella trichopoda      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 9 genes.  Reviewed (0 or Unreviewed (9

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Amt-0216
AMTR_s00016p00258500
W1PH60
AMTR_s00016p00258500
2
LLPS-Amt-2085
AMTR_s00029p00198200
W1PPJ2
AMTR_s00029p00198200
3
LLPS-Amt-2108
AMTR_s00041p00052270
W1PYC0
AMTR_s00041p00052270
4
LLPS-Amt-0377
AMTR_s00044p00049370
U5D4D1
AMTR_s00044p00049370
5
LLPS-Amt-1483
AMTR_s00045p00168580
W1P3G2
AMTR_s00045p00168580
6
LLPS-Amt-1185
AMTR_s00056p00038090
U5CPI8
AMTR_s00056p00038090
7
LLPS-Amt-1073
AMTR_s00092p00161430
W1NQR5
AMTR_s00092p00161430
8
LLPS-Amt-0895
AMTR_s00115p00067610
W1NSL8
AMTR_s00115p00067610
9
LLPS-Amt-1691
AMTR_s00118p00114180
W1NQS9
AMTR_s00118p00114180