Komagataella pastoris      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 23 genes.  Reviewed (0 or Unreviewed (23

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Kop-0693
PAS_chr1-1_0082
C4QW19
PAS_chr1-1_0082
2
LLPS-Kop-0724
PAS_chr1-1_0468
C4QW00
PAS_chr1-1_0468
3
LLPS-Kop-0060
PAS_chr1-3_0064
C4QV46
PAS_chr1-3_0064
4
LLPS-Kop-0772
PAS_chr1-3_0089
C4QV73
PAS_chr1-3_0089
5
LLPS-Kop-0426
PAS_chr1-3_0182
C4QVH2
PAS_chr1-3_0182
6
LLPS-Kop-0597
PAS_chr1-3_0241
C4QVN0
PAS_chr1-3_0241
7
LLPS-Kop-0054
PAS_chr1-4_0051
C4QXA9
PAS_chr1-4_0051
8
LLPS-Kop-0109
PAS_chr2-1_0187
C4QZX1
PAS_chr2-1_0187
9
LLPS-Kop-0084
PAS_chr2-1_0414
C4R0L1
PAS_chr2-1_0414
10
LLPS-Kop-0358
PAS_chr2-1_0418
C4R0L6
PAS_chr2-1_0418
11
LLPS-Kop-1188
PAS_chr2-1_0468
C4R0S2
PAS_chr2-1_0468
12
LLPS-Kop-1033
PAS_chr2-1_0818
C4R000
PAS_chr2-1_0818
13
LLPS-Kop-1501
PAS_chr2-2_0041
C4R319
PAS_chr2-2_0041
14
LLPS-Kop-0504
PAS_chr2-2_0243
C4R2E8
PAS_chr2-2_0243
15
LLPS-Kop-0915
PAS_chr2-2_0280
C4R2A8
PAS_chr2-2_0280
16
LLPS-Kop-1441
PAS_chr2-2_0297
C4R286
PAS_chr2-2_0297
17
LLPS-Kop-1042
PAS_chr2-2_0449
C4R335
PAS_chr2-2_0449
18
LLPS-Kop-0761
PAS_chr3_0324
C4R476
PAS_chr3_0324
19
LLPS-Kop-0925
PAS_chr3_0642
C4R555
PAS_chr3_0642
20
LLPS-Kop-0320
PAS_chr3_0699
C4R5B2
PAS_chr3_0699
21
LLPS-Kop-0756
PAS_chr3_1077
C4R6F6
PAS_chr3_1077
22
LLPS-Kop-0366
PAS_chr4_0095
C4R6U7
PAS_chr4_0095
23
LLPS-Kop-1364
PAS_chr4_0394
C4R7R9
PAS_chr4_0394