Ciona savignyi      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-Cis-0315
ENSCSAVG00000000560.1
H2Y6P4
2
LLPS-Cis-0378
ENSCSAVG00000004156.1
H2YNN6
3
LLPS-Cis-0504
ENSCSAVG00000008414.1
H2Z9U5
4
LLPS-Cis-0648
ENSCSAVG00000000353.1
H2Y5N1
5
LLPS-Cis-0736
ENSCSAVG00000002002.1
H2YDH2
6
LLPS-Cis-0789
ENSCSAVG00000009372.1
H2ZEA9
7
LLPS-Cis-0820
ENSCSAVG00000006267.1
H2YZ91
8
LLPS-Cis-1242
ENSCSAVG00000000953.1
H2Y8K4
9
LLPS-Cis-1295
ENSCSAVG00000005282.1
H2YU99
10
LLPS-Cis-1419
ENSCSAVG00000005024.1
H2YT04
11
LLPS-Cis-1455
ENSCSAVG00000006441.1
H2Z087
12
LLPS-Cis-1594
ENSCSAVG00000003120.1
H2YIU1
13
LLPS-Cis-1914
ENSCSAVG00000006754.1
H2Z1R8
14
LLPS-Cis-1978
ENSCSAVG00000003931.1
H2YML3