Physcomitrella patens      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 10 genes.  Reviewed (0 or Unreviewed (10

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Php-2072
Pp3c16_8070
2
LLPS-Php-1507
Pp3c22_5980
A9RJC1
NFC1501
3
LLPS-Php-1340
Pp3c7_15580
A0A2K1KBT9
PHYPA_010432
4
LLPS-Php-0319
Pp3c12_18160
A9S3Y9
PHYPA_016434
5
LLPS-Php-1196
Pp3c17_16550
A0A2K1J482
PHYPA_022183
6
LLPS-Php-1427
Pp3c18_12540
A0A2K1J0U0
PHYPA_023045
7
LLPS-Php-1321
Pp3c24_1010
A0A2K1IF52
PHYPA_028487
8
LLPS-Php-0999
Pp3c25_12300
A0A2K1IEM7
PHYPA_029878
9
LLPS-Php-2444
Pp3c26_370
A0A2K1IB87
PHYPA_030032
10
LLPS-Php-0896
Pp3c22_22940
C0STZ0
PpCLF