Saccharomyces cerevisiae      Nuclear speckle


※ Nuclear speckle introduction

    Nuclear speckles or splicing speckles, also known as interchromatin granule clusters, are membrane-less nuclear organelles enriched in pre-mRNA splicing and transcription factors and play important roles in RNA metabolism, such as transcription, pre-mRNA splicing, 3′-end mRNA processing, and execution of mRNA nuclear export (1; 2). They are dynamic subnuclear structures, and their size, shape, and number can vary accompanied with RNA regulation, nuclear speckles disperse in high activity of mRNA processing when transcription or pre-mRNA splicing is inhibited, GSK-3β can regulate assembly of nuclear speckles (2). Because many naturally intronless mRNAs, including eight exogenously expressed and four endogenous ones, are proved to be associate with NSs, So Nuclear speckles (NSs) are thought to serve as splicing factor storage sites (3).

Reference
1. Lee, K. H., Zhang, P., Kim, H. J., Mitrea, D. M., Sarkar, M., Freibaum, B. D., et al. (2016) C9orf72 Dipeptide Repeats Impair the Assembly, Dynamics, and Function of Membrane-Less Organelles. Cell, 167(3), 774-788 e717. PMID: 27768896
2. Wang, K., Wang, L., Wang, J., Chen, S., Shi, M., & Cheng, H. (2018) Intronless mRNAs transit through nuclear speckles to gain export competence. J Cell Biol, 217(11), 3912-3929. PMID: 30194269
3. An, Y., Zou, Y., Cao, Y., Yao, M., Ma, N., Wu, Y., et al. (2019) The nuclear GSK-3beta regulated post-transcriptional processing of mRNA through phosphorylation of SC35. Mol Cell Biochem, 451(1-2), 55-67. PMID: 30030778


There are 17 genes.  Reviewed (1 or Unreviewed (16

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Sac-0395
YGR218W
P30822
CRM1
2
LLPS-Sac-1295
YER172C
P32639
BRR2
3
LLPS-Sac-1427
YMR213W
Q03654
CEF1
4
LLPS-Sac-0908
YMR288W
P49955
HSH155
5
LLPS-Sac-1222
YIR005W
P40565
IST3
6
LLPS-Sac-0892
YDL108W
P06242
KIN28
7
LLPS-Sac-1340
YDL087C
Q07508
LUC7
8
LLPS-Sac-1227
YBR136W
P38111
MEC1
9
LLPS-Sac-1365
YPL169C
Q99257
MEX67
10
LLPS-Sac-1487
YIR009W
P40567
MSL1
11
LLPS-Sac-1570
YLR116W
Q12186
MSL5
12
LLPS-Sac-0910
YML060W
P53397
OGG1
13
LLPS-Sac-1579
YOR362C
P21242
PRE10
14
LLPS-Sac-1180
YPL151C
Q12417
PRP46
15
LLPS-Sac-0961
YHR165C
P33334
PRP8
16
LLPS-Sac-1051
YDL030W
P19736
PRP9
17
LLPS-Sac-1201
YIL061C
Q00916
SNP1