Drosophila melanogaster      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 26 genes.  Reviewed (22 or Unreviewed (4

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Drm-0106
FBgn0262739
Q32KD4
AGO1
2
LLPS-Drm-0022
FBgn0261823
Q9V727
Asx
3
LLPS-Drm-0175
FBgn0263979
Q24572
Caf1
4
LLPS-Drm-0214
FBgn0262166
Q7K5N4
calypso
5
LLPS-Drm-0202
FBgn0000376
O76906
crm
6
LLPS-Drm-0215
FBgn0034246
A1ZAW0
Dcr-2
7
LLPS-Drm-0014
FBgn0000629
P42124
E(z)
8
LLPS-Drm-0240
FBgn0000588
Q24338
esc
9
LLPS-Drm-0168
FBgn0030241
Q9VZ62
feo
10
LLPS-Drm-2443
FBgn0260789
Q9W363
mxc
11
LLPS-Drm-0148
FBgn0003042
P26017
Pc
12
LLPS-Drm-0121
FBgn0003044
Q24459
Pcl
13
LLPS-Drm-0049
FBgn0005655
P17917
PCNA
14
LLPS-Drm-0095
FBgn0004861
P39769
ph-p
15
LLPS-Drm-0220
FBgn0002521
Q8ST83
pho
16
LLPS-Drm-0232
FBgn0004872
Q9VKM1
piwi
17
LLPS-Drm-0742
FBgn0005624
P35820
Psc
18
LLPS-Drm-0125
FBgn0003330
Q9VB08
Sce
19
LLPS-Drm-0132
FBgn0003339
P09077
Scr
20
LLPS-Drm-0231
FBgn0020887
Q9NJG9
Su(z)12
21
LLPS-Drm-0036
FBgn0261403
Q7KJA9
sxc
22
LLPS-Drm-0239
FBgn0004655
Q9W517
wapl
23
LLPS-Drm-2156
FBgn0032391
Q9VKD5
escl
24
LLPS-Drm-1378
FBgn0036004
Q9VT00
Jarid2
25
LLPS-Drm-0707
FBgn0086655
Q7KHG2
jing
26
LLPS-Drm-2267
FBgn0028426
Q8MKW7
RNaseZ