Medicago truncatula      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-Met-0556
MTR_4g096880
G7JE05
11407768
2
LLPS-Met-1682
MTR_6g061690
G7KNR9
11420276
3
LLPS-Met-1733
MTR_2g101390
G7IUN1
11427220
4
LLPS-Met-2047
MTR_1g086980
G7ICX6
11427647
5
LLPS-Met-0893
MTR_1g079510
G7I5N5
11431731
6
LLPS-Met-0000
MTR_1g028310
A0A072VEI5
25482354
7
LLPS-Met-0160
MTR_3g462130
A0A072UWC3
25490757
8
LLPS-Met-2142
MTR_4g088520
A0A072UYT1
25493116
9
LLPS-Met-0661
MTR_4g116860
A0A072US37
25493973
10
LLPS-Met-2300
MTR_6g477980
A0A072UM25
25497351
11
LLPS-Met-0375
MTR_1g057690
A0A072VIU7
MTR_1g057690
12
LLPS-Met-1410
MTR_5g013150
G7JXG2
MTR_5g013150