Ciona intestinalis      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 14 genes.  Reviewed (0 or Unreviewed (14

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Cii-0110
ENSCING00000003436.3
F6XKW6
2
LLPS-Cii-0529
ENSCING00000007310.3
F6YK55
3
LLPS-Cii-0996
ENSCING00000014546.2
F6UZR0
4
LLPS-Cii-1021
ENSCING00000014557.2
F6UZ84
5
LLPS-Cii-1133
ENSCING00000023400.1
H2Y2L7
6
LLPS-Cii-1166
ENSCING00000007979.3
F6WQW9
7
LLPS-Cii-1633
ENSCING00000015739.2
F6VW31
8
LLPS-Cii-2079
ENSCING00000018033.1
H2XLG0
9
LLPS-Cii-0083
ENSCING00000018982.1
Q1RLG5
Ci-ZF(C2H2)-66
10
LLPS-Cii-1547
ENSCING00000001363.3
O18313
hox5
11
LLPS-Cii-1059
ENSCING00000006948.3
F6UZU2
LOC100180904
12
LLPS-Cii-1210
ENSCING00000014118.1
F6R589
LOC100184693
13
LLPS-Cii-0588
ENSCING00000007949.3
A0A1W3JEA6
LOC104265886
14
LLPS-Cii-0138
ENSCING00000006765.3
H2XNG3
zf(c2h2)-30