Table 1.
Nuclear body proteins identified by RNase sensitivity screening
Nuclear body and proteinRNA-binding domainsOther domains or motifsColocalized markersNovelLow-complexity domainsPrion-like domainsDisassembly rate
       % 
Paraspeckle        
 CPSF7 RRM PSPC1 No Yes No 12 
 ELAVL1 3 RRMs PSPC1 Yes No No 
 FUS RRM ZnF_RanBP2 PSPC1 No Yes Yes 19 
 HNRNPA1 2 RRMs PSPC1 No Yes Yes 
 HNRNPUL1 SAP, SPRY PSPC1 No Yes Yes 
 PSPC1 2 RRMs PSPC1 No Yes Yes 
 RBFOX2 RRM PSPC1 Yes Yes No 16 
 RBM7 RRM PSPC1 No Yes No 
 RBM14 2 RRMs PSPC1 No Yes Yes 
  RRM RS PSPC1 No Yes No 11 
 TARDBP 2 RRMs PSPC1 No Yes Yes 
Nuclear speckle        
 FYTTD1 UAP56-binding SRSF2/SC35 No No No 
 LSM6 SRSF2/SC35 Yes No No 
 RBM5 2 RRMs G-patch, ZnF_RanBP2, ZnF_C2H2 SRSF2/SC35 No Yes Yes 17 
 SMNDC1 Tudor SRSF2/SC35 No Yes No 
 SNRPE SRSF2/SC35 No Yes No 18 
 SRSF1 2 RRMs RS SRSF2/SC35 No Yes No 
 SRSF7 RRM RS, ZnF_CCHC SRSF2/SC35 No Yes No 
 YTHDC1 YTH, Coiled_coil SRSF2/SC35 No Yes No 
 ZC3H11A Coiled_coil, 3 ZnF_C3H1 SRSF2/SC35 No Yes No 18 
SNB        
 CCAR2/DBC1 Coiled_coil KHDRBS1/Sam68 Yes Yes No 17 
 KHDRBS1/Sam68 KH KHDRBS1/Sam68 No Yes No 
 HNRNPD 2 RRMs KHDRBS1/Sam68 Yes Yes Yes 15 
 STRBP 2 DSRM DZF KHDRBS1/Sam68 Yes Yes No 
 ZMAT4 4 ZnF_C2H2 KHDRBS1/Sam68 Yes No No 13 
 ZNF346 4 ZnF_C2H2 KHDRBS1/Sam68 Yes No No 11 
 ZNF385B 4 ZnF_C2H2 KHDRBS1/Sam68 Yes Yes No 
Cajal body        
 GTF2H1 2 BSD COIL No Yes No 14 
 SNRPB2 2 RRMs COIL No Yes Yes 10 
Centromere        
 ZNF549 15 ZnF_C2H2 CENPB Yes No No 
Unknown        
 C1orf147 Yes No No 13 
 PCBP4 3 KH Yes Yes No 
Nuclear body and proteinRNA-binding domainsOther domains or motifsColocalized markersNovelLow-complexity domainsPrion-like domainsDisassembly rate
       % 
Paraspeckle        
 CPSF7 RRM PSPC1 No Yes No 12 
 ELAVL1 3 RRMs PSPC1 Yes No No 
 FUS RRM ZnF_RanBP2 PSPC1 No Yes Yes 19 
 HNRNPA1 2 RRMs PSPC1 No Yes Yes 
 HNRNPUL1 SAP, SPRY PSPC1 No Yes Yes 
 PSPC1 2 RRMs PSPC1 No Yes Yes 
 RBFOX2 RRM PSPC1 Yes Yes No 16 
 RBM7 RRM PSPC1 No Yes No 
 RBM14 2 RRMs PSPC1 No Yes Yes 
  RRM RS PSPC1 No Yes No 11 
 TARDBP 2 RRMs PSPC1 No Yes Yes 
Nuclear speckle        
 FYTTD1 UAP56-binding SRSF2/SC35 No No No 
 LSM6 SRSF2/SC35 Yes No No 
 RBM5 2 RRMs G-patch, ZnF_RanBP2, ZnF_C2H2 SRSF2/SC35 No Yes Yes 17 
 SMNDC1 Tudor SRSF2/SC35 No Yes No 
 SNRPE SRSF2/SC35 No Yes No 18 
 SRSF1 2 RRMs RS SRSF2/SC35 No Yes No 
 SRSF7 RRM RS, ZnF_CCHC SRSF2/SC35 No Yes No 
 YTHDC1 YTH, Coiled_coil SRSF2/SC35 No Yes No 
 ZC3H11A Coiled_coil, 3 ZnF_C3H1 SRSF2/SC35 No Yes No 18 
SNB        
 CCAR2/DBC1 Coiled_coil KHDRBS1/Sam68 Yes Yes No 17 
 KHDRBS1/Sam68 KH KHDRBS1/Sam68 No Yes No 
 HNRNPD 2 RRMs KHDRBS1/Sam68 Yes Yes Yes 15 
 STRBP 2 DSRM DZF KHDRBS1/Sam68 Yes Yes No 
 ZMAT4 4 ZnF_C2H2 KHDRBS1/Sam68 Yes No No 13 
 ZNF346 4 ZnF_C2H2 KHDRBS1/Sam68 Yes No No 11 
 ZNF385B 4 ZnF_C2H2 KHDRBS1/Sam68 Yes Yes No 
Cajal body        
 GTF2H1 2 BSD COIL No Yes No 14 
 SNRPB2 2 RRMs COIL No Yes Yes 10 
Centromere        
 ZNF549 15 ZnF_C2H2 CENPB Yes No No 
Unknown        
 C1orf147 Yes No No 13 
 PCBP4 3 KH Yes Yes No 

The low-complexity region and prion-like domain were judged using Prion-like amino acid composition (http://plaac.wi.mit.edu/) and GlobPlot (http://globplot.embl.de/), respectively. RNase sensitivity (Disassembly rate) was measured by the ratio of the number of nuclear foci–positive cells after RNase treatment relative to the number before RNase treatment (n > 100). RNase sensitivities of C1orf108 and COIL were 103% and 105%, respectively. -, not applicable; RRM, RNA recognition motif; ZnF_RanBP2, zinc finger, RanBP2-type; SAP, SAF-A/B, acinus, and PIAS; SPRY, SPla and the ryanodine receptor; RS, arginine/serine-rich; G-patch, glycine-rich nucleic binding domain; ZnF_C2H2, zinc finger, C2H2-like; ZnF_CCHC, zinc finger, CCHC-type; YTH, YT521-B homology; ZnF_C3H1, zinc finger, C3H1-type; DZF, domain associated with zinc fingers; BSD, BTF2-like transcription factors, Synapse-associated proteins, and DOS2-like proteins.

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