Selaginella moellendorffii      Cajal body


※ Cajal body introduction

    Cajal bodies is a kind of non-membrane-bound nuclear bodies, formation of such sub-organelles usually involves dynamic processes, which can move within the nucleoplasm except when transiently immobilized through interaction with chromatin (1). The Cajal body has been suggested to be associated with telomere maintenance and maturation of the splicing machinery and processing of histone mRNA (2;3), it is rich in ribonucleoprotein (RNP) complexes and characterized by the marker protein coilin that interacts with many factors and thereby serves as a platform for the assembly of Cajal bodies (1). WRAP53β has been demonstrated to be an essential Cajal Body Component, it guides SMN across the cell to Cajal Bodies, and phosphorylation of WRAP53β by ATM promotes its involvement in the DNA damage response (4). besides, Fam118 is a newly identified component of Cajal bodies that is required for Cajal body formation (5). Defects in Cajal body formation are linked to impaired cell proliferation and splicing (6). In fact, Cajal bodies are not essential in telomerase function and telomere elongation ,whereas certain Cajal body factors such as WRAP53β clearly play important roles in telomere homeostasis (1).

References
1. Henriksson, S., & Farnebo, M. (2015) On the road with WRAP53beta: guardian of Cajal bodies and genome integrity. Front Genet, 6, 91. PMID: 25852739
2. Machyna, M., Heyn, P., & Neugebauer, K. M. (2013) Cajal bodies: where form meets function. Wiley Interdiscip Rev RNA, 4(1), 17-34. PMID: 23042601
3. Hutten, S., Chachami, G., Winter, U., Melchior, F., & Lamond, A. I. (2014) A role for the Cajal-body-associated SUMO isopeptidase USPL1 in snRNA transcription mediated by RNA polymerase II. J. Cell. Sci., 127(Pt 5), 1065-1078. PMID: 24413172
4. Coucoravas, C., Dhanjal, S., Henriksson, S., Bohm, S., & Farnebo, M. (2017) Phosphorylation of the Cajal body protein WRAP53beta by ATM promotes its involvement in the DNA damage response. RNA Biol., 14(6), 804-813. PMID: 27715493
5. Li, Y., Fong, K. W., Tang, M., Han, X., Gong, Z., Ma, W, Chen, J. (2014) Fam118B, a newly identified component of Cajal bodies, is required for Cajal body formation, snRNP biogenesis and cell viability. J. Cell Sci., 127(Pt 9), 2029-2039. PMID:24569877
6. Lemm, I., Girard, C., Kuhn, A. N., Watkins, N. J., Schneider, M., Bordonne, R., & Luhrmann, R. (2006) Ongoing U snRNP biogenesis is required for the integrity of Cajal bodies. Mol. Biol. Cell, 17(7), 3221-3231. PMID:16687569


There are 19 genes.  Reviewed (0 or Unreviewed (19

No.StatusDrLLPS IDEnsemble Gene IDUniProt AccessionGene Name
1
LLPS-Sem-1511
SELMODRAFT_121644
D8SPD0
SELMODRAFT_121644
2
LLPS-Sem-1963
SELMODRAFT_124256
D8R2P2
SELMODRAFT_124256
3
LLPS-Sem-0286
SELMODRAFT_140819
D8QSR9
SELMODRAFT_140819
4
LLPS-Sem-0053
SELMODRAFT_145785
D8RDL9
SELMODRAFT_145785
5
LLPS-Sem-1258
SELMODRAFT_146841
D8RG17
SELMODRAFT_146841
6
LLPS-Sem-0513
SELMODRAFT_171051
D8RFP8
SELMODRAFT_171051
7
LLPS-Sem-0505
SELMODRAFT_172852
D8RN07
SELMODRAFT_172852
8
LLPS-Sem-1378
SELMODRAFT_176675
D8R512
SELMODRAFT_176675
9
LLPS-Sem-1059
SELMODRAFT_181868
D8SQL1
SELMODRAFT_181868
10
LLPS-Sem-1023
SELMODRAFT_182680
D8SU25
SELMODRAFT_182680
11
LLPS-Sem-1971
SELMODRAFT_227744
D8RA33
SELMODRAFT_227744
12
LLPS-Sem-0242
SELMODRAFT_231785
D8R4G5
SELMODRAFT_231785
13
LLPS-Sem-0472
SELMODRAFT_233747
D8SDS6
SELMODRAFT_233747
14
LLPS-Sem-1282
SELMODRAFT_233936
D8SFW6
SELMODRAFT_233936
15
LLPS-Sem-0020
SELMODRAFT_236385
D8T867
SELMODRAFT_236385
16
LLPS-Sem-0564
SELMODRAFT_402481
D8QQS6
SELMODRAFT_402481
17
LLPS-Sem-0229
SELMODRAFT_408955
D8R904
SELMODRAFT_408955
18
LLPS-Sem-1577
SELMODRAFT_422911
D8SJY6
SELMODRAFT_422911
19
LLPS-Sem-0481
SELMODRAFT_6302
D8S7H9
SELMODRAFT_6302