Drosophila melanogaster      Insulator body


※ Insulator body introduction

    Eukaryotic cells are inhomogeneously crowded with biological macromolecules (proteins and nucleic acids) and often contain numerous cellular bodies, including proteinaceous membrane-less organelles (PMLOs), 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). Insulator bodies is a kind of these bodies located in nucleus without any DNA or RNA components and it’s periphery-associated, proved to be related to the response to osmotic stress (1). Under the osmotic stress, Chromatin insulators assist in the formation of higher-order chromatin structures by mediating long-range contacts between distant genomic sites, It has been suggested that insulators accomplish this task by forming dense nuclear foci termed insulator bodies that result from the coalescence of multiple protein-bound insulators (2).

Reference
1. Uversky, V. N. (2017) Intrinsically disordered proteins in overcrowded milieu: Membrane-less organelles, phase separation, and intrinsic disorder. Curr Opin Struct Biol, 44, 18-30. PMID: 27838525
2. Schoborg, T., Rickels, R., Barrios, J., & Labrador, M. (2013) Chromatin insulator bodies are nuclear structures that form in response to osmotic stress and cell death. J Cell Biol, 202(2), 261-276. PMID: 23878275


There are 13 genes.  Reviewed (13 or Unreviewed (0

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Drm-0114
FBgn0000015
P09087
Abd-B
2
LLPS-Drm-2411
FBgn0015602
Q7JN06
BEAF-32
3
LLPS-Drm-2423
FBgn0032979
Q8IGP5
Clamp
4
LLPS-Drm-2396
FBgn0000283
Q24478
Cp190
5
LLPS-Drm-0068
FBgn0035769
Q9VS55
CTCF
6
LLPS-Drm-2398
FBgn0000520
Q9W4V9
dwg
7
LLPS-Drm-2399
FBgn0000533
P13582
ea
8
LLPS-Drm-2435
FBgn0037670
Q9VHG5
Ibf1
9
LLPS-Drm-2434
FBgn0037669
Q9VHG6
Ibf2
10
LLPS-Drm-0254
FBgn0002781
Q86B87
mod(mdg4)
11
LLPS-Drm-2405
FBgn0003567
P08970
su(Hw)
12
LLPS-Drm-0142
FBgn0267351
Q9V8P9
Topors
13
LLPS-Drm-2408
FBgn0013263
Q08605
Trl