| IPR048863 | Pre-mRNA-splicing helicase BRR2-like, plug domain | Domain |
| IPR041094 | Brr2, N-terminal helicase PWI domain | Domain |
| IPR004179 | Sec63 domain | Domain |
| IPR014756 | Immunoglobulin E-set | Homologous Superfamily |
| IPR011545 | DEAD/DEAH-box helicase domain | Domain |
| IPR057842 | MER3 helicase-like, winged helix domain | Domain |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| IPR050474 | Helicase Hel308/SKI2-like | Family |
| IPR001650 | Helicase, C-terminal domain-like | Domain |
| IPR036388 | Winged helix-like DNA-binding domain superfamily | Homologous Superfamily |
| IPR014001 | Helicase superfamily 1/2, ATP-binding domain | Domain |
| IPR036390 | Winged helix DNA-binding domain superfamily | Homologous Superfamily |
| IPR035892 | C2 domain superfamily | Homologous Superfamily |
| K [auth I] | IPR024767 | Pre-mRNA-splicing factor 38, C-terminal | Domain |
| K [auth I] | IPR005037 | Pre-mRNA-splicing factor 38 | Family |
| L [auth Q] | IPR001748 | Pre-mRNA-splicing factor BUD31 | Family |
| L [auth Q] | IPR018230 | BUD31/G10-related, conserved site | Conserved Site |
U [auth 23], UA [auth 53] | IPR027141 | Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 | Family |
U [auth 23], UA [auth 53] | IPR034099 | Small nuclear ribonucleoprotein Sm D3 | Family |
U [auth 23], UA [auth 53] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
U [auth 23], UA [auth 53] | IPR047575 | Sm domain | Domain |
U [auth 23], UA [auth 53] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
V [auth 2g], XA [auth 5g] | IPR044641 | Sm-like protein Lsm7/SmG | Family |
V [auth 2g], XA [auth 5g] | IPR034098 | Small nuclear ribonucleoprotein G | Family |
V [auth 2g], XA [auth 5g] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
V [auth 2g], XA [auth 5g] | IPR047575 | Sm domain | Domain |
V [auth 2g], XA [auth 5g] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
SA [auth 51], X [auth 21] | IPR027141 | Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 | Family |
SA [auth 51], X [auth 21] | IPR034102 | Small nuclear ribonucleoprotein D1 | Domain |
SA [auth 51], X [auth 21] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
SA [auth 51], X [auth 21] | IPR047575 | Sm domain | Domain |
SA [auth 51], X [auth 21] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| AA [auth 9] | IPR021966 | Splicing factor SF3a60 binding domain | Domain |
| AA [auth 9] | IPR031774 | SF3A3 domain | Domain |
| AA [auth 9] | IPR024598 | Splicing factor SF3a60 /Prp9 subunit, C-terminal | Domain |
| AA [auth 9] | IPR025086 | SDE2/SF3A3, SAP domain | Domain |
| AA [auth 9] | IPR000690 | Matrin/U1-C, C2H2-type zinc finger | Domain |
| AA [auth 9] | IPR051421 | RNA Processing and DNA Damage Response Regulator | Family |
| DA [auth B5] | IPR017089 | Splicing factor 3B, subunit 5 | Family |
| DA [auth B5] | IPR009846 | Splicing factor 3B subunit 5/RDS3 complex subunit 10 | Family |
| IA [auth SR] | IPR051485 | SR-related and CTD-associated factor | Family |
| IA [auth SR] | IPR047488 | U2-associated protein SR140, cwf21 domain | Domain |
| IA [auth SR] | IPR008942 | ENTH/VHS | Homologous Superfamily |
| IA [auth SR] | IPR000504 | RNA recognition motif domain | Domain |
| IA [auth SR] | IPR035967 | SWAP/Surp superfamily | Homologous Superfamily |
| IA [auth SR] | IPR000061 | SWAP/Surp | Domain |
| IA [auth SR] | IPR013170 | mRNA splicing factor Cwf21 domain | Domain |
| IA [auth SR] | IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Homologous Superfamily |
| IA [auth SR] | IPR006569 | CID domain | Domain |
| IA [auth SR] | IPR035979 | RNA-binding domain superfamily | Homologous Superfamily |
| IA [auth SR] | IPR035009 | SR140, RNA recognition motif | Domain |
| QA [auth t] | IPR003613 | U-box domain | Domain |
| QA [auth t] | IPR029000 | Cyclophilin-like domain superfamily | Homologous Superfamily |
| QA [auth t] | IPR002130 | Cyclophilin-type peptidyl-prolyl cis-trans isomerase domain | Domain |
| QA [auth t] | IPR044666 | Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like | Family |
| QA [auth t] | IPR013083 | Zinc finger, RING/FYVE/PHD-type | Homologous Superfamily |
| QA [auth t] | IPR020892 | Cyclophilin-type peptidyl-prolyl cis-trans isomerase, conserved site | Conserved Site |
| QA [auth t] | IPR026951 | Peptidyl-prolyl cis-trans isomerase like 2, U-box domain | Domain |
| ZA [auth 63] | IPR040002 | U6 snRNA-associated Sm-like protein Lsm3 | Family |
| ZA [auth 63] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| ZA [auth 63] | IPR047575 | Sm domain | Domain |
| ZA [auth 63] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| ZA [auth 63] | IPR034105 | Sm-like protein Lsm3 | Domain |
| BB [auth 65] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| BB [auth 65] | IPR047575 | Sm domain | Domain |
| BB [auth 65] | IPR033871 | Sm-like protein LSm5 | Domain |
| BB [auth 65] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| CB [auth 66] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| CB [auth 66] | IPR047575 | Sm domain | Domain |
| CB [auth 66] | IPR016487 | Sm-like protein Lsm6/SmF | Family |
| CB [auth 66] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| EB [auth 68] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| EB [auth 68] | IPR047575 | Sm domain | Domain |
| EB [auth 68] | IPR034103 | Sm-like protein Lsm8 | Domain |
| EB [auth 68] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| EB [auth 68] | IPR044642 | U6 snRNA-associated Sm-like protein Lsm1/8 | Family |
| HB [auth T] | IPR036517 | FF domain superfamily | Homologous Superfamily |
| HB [auth T] | IPR002713 | FF domain | Domain |
| HB [auth T] | IPR036020 | WW domain superfamily | Homologous Superfamily |
| HB [auth T] | IPR057565 | Transcription elongation regulator 1-like, third WW domain | Domain |
| HB [auth T] | IPR001202 | WW domain | Domain |
| HB [auth T] | IPR045148 | Transcription elongation regulator 1-like | Family |
| IB [auth K] | IPR033194 | Microfibrillar-associated protein 1 | Family |
| IB [auth K] | IPR009730 | Micro-fibrillar-associated protein 1, C-terminal | Domain |
| I [auth E] | IPR052234 | U5 snRNP Complex Component | Family |
| I [auth E] | IPR019775 | WD40 repeat, conserved site | Conserved Site |
| I [auth E] | IPR036322 | WD40-repeat-containing domain superfamily | Homologous Superfamily |
| I [auth E] | IPR020472 | PAC1/LIS1-like, WD-40 repeat | Repeat |
| I [auth E] | IPR001680 | WD40 repeat | Repeat |
| I [auth E] | IPR015943 | WD40/YVTN repeat-like-containing domain superfamily | Homologous Superfamily |
| H [auth C] | IPR005517 | Translation elongation factor EFG/EF2, domain IV | Domain |
| H [auth C] | IPR000795 | Translational (tr)-type GTP-binding domain | Domain |
| H [auth C] | IPR035647 | EF-G domain III/V-like | Homologous Superfamily |
| H [auth C] | IPR035655 | 116kDa U5 small nuclear ribonucleoprotein component, C-terminal | Domain |
| H [auth C] | IPR041095 | Elongation Factor G, domain II | Domain |
| H [auth C] | IPR004161 | Translation elongation factor EFTu-like, domain 2 | Domain |
| H [auth C] | IPR009000 | Translation protein, beta-barrel domain superfamily | Homologous Superfamily |
| H [auth C] | IPR020568 | Ribosomal protein uS5 domain 2-type superfamily | Homologous Superfamily |
| H [auth C] | IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| H [auth C] | IPR014721 | Small ribosomal subunit protein uS5 domain 2-type fold, subgroup | Homologous Superfamily |
| H [auth C] | IPR031950 | 116kDa U5 small nuclear ribonucleoprotein component, N-terminal | Domain |
| H [auth C] | IPR005225 | Small GTP-binding domain | Domain |
| H [auth C] | IPR000640 | Elongation factor EFG, domain V-like | Domain |
| H [auth C] | IPR044121 | Snu114, GTP-binding domain | Domain |
| G [auth L] | IPR047240 | Pre-mRNA splicing factor component CDC5L/Cef1, second SANT/myb-like domain | Domain |
| G [auth L] | IPR017930 | Myb domain | Domain |
| G [auth L] | IPR047242 | Pre-mRNA splicing factor component CDC5L/Cef1 | Family |
| G [auth L] | IPR009057 | Homedomain-like superfamily | Homologous Superfamily |
| G [auth L] | IPR001005 | SANT/Myb domain | Domain |
| G [auth L] | IPR021786 | Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal | Domain |
| KB [auth 5A] | IPR005345 | PHF5-like | Family |
| JB [auth P7] | IPR019775 | WD40 repeat, conserved site | Conserved Site |
| JB [auth P7] | IPR032847 | Pre-mRNA-processing factor 17 | Family |
| JB [auth P7] | IPR036322 | WD40-repeat-containing domain superfamily | Homologous Superfamily |
| JB [auth P7] | IPR001680 | WD40 repeat | Repeat |
| JB [auth P7] | IPR015943 | WD40/YVTN repeat-like-containing domain superfamily | Homologous Superfamily |
| GB [auth A6] | IPR050374 | RRT5/SRSF/Splicing Factor SR | Family |
| GB [auth A6] | IPR034520 | SRSF1, RNA recognition motif 1 | Domain |
| GB [auth A6] | IPR029538 | Serine/arginine-rich splicing factor 1, RNA recognition motif 2 | Domain |
| GB [auth A6] | IPR000504 | RNA recognition motif domain | Domain |
| GB [auth A6] | IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Homologous Superfamily |
| GB [auth A6] | IPR035979 | RNA-binding domain superfamily | Homologous Superfamily |
| E [auth 7] | IPR045146 | Splicing factor 3A subunit 1 | Family |
| E [auth 7] | IPR035967 | SWAP/Surp superfamily | Homologous Superfamily |
| E [auth 7] | IPR000061 | SWAP/Surp | Domain |
| E [auth 7] | IPR000626 | Ubiquitin-like domain | Domain |
| E [auth 7] | IPR035563 | Splicing factor 3A subunit 1, ubiquitin domain | Domain |
| E [auth 7] | IPR029071 | Ubiquitin-like domain superfamily | Homologous Superfamily |
| E [auth 7] | IPR022030 | Splicing factor 3A subunit 1, conserved domain | Domain |
| FB [auth S1] | IPR017862 | SKI-interacting protein, SKIP | Family |
| FB [auth S1] | IPR004015 | SKI-interacting protein SKIP, SNW domain | Domain |
| DB [auth 67] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| DB [auth 67] | IPR047575 | Sm domain | Domain |
| DB [auth 67] | IPR044641 | Sm-like protein Lsm7/SmG | Family |
| DB [auth 67] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| DB [auth 67] | IPR017132 | Sm-like protein Lsm7 | Family |
| AB [auth 64] | IPR027141 | Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 | Family |
| AB [auth 64] | IPR034101 | Sm-like protein Lsm4 | Domain |
| AB [auth 64] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| AB [auth 64] | IPR047575 | Sm domain | Domain |
| AB [auth 64] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| YA [auth 62] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
| YA [auth 62] | IPR047575 | Sm domain | Domain |
| YA [auth 62] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| YA [auth 62] | IPR016654 | U6 snRNA-associated Sm-like protein LSm2 | Family |
NA [auth v], OA [auth w] | IPR054532 | TPL/SMU1, LisH-like dimerisation domain | Domain |
NA [auth v], OA [auth w] | IPR019775 | WD40 repeat, conserved site | Conserved Site |
NA [auth v], OA [auth w] | IPR036322 | WD40-repeat-containing domain superfamily | Homologous Superfamily |
NA [auth v], OA [auth w] | IPR006595 | CTLH, C-terminal LisH motif | Domain |
NA [auth v], OA [auth w] | IPR045184 | WD40 repeat-containing protein SMU1 | Family |
NA [auth v], OA [auth w] | IPR020472 | PAC1/LIS1-like, WD-40 repeat | Repeat |
NA [auth v], OA [auth w] | IPR001680 | WD40 repeat | Repeat |
NA [auth v], OA [auth w] | IPR006594 | LIS1 homology motif | Conserved Site |
NA [auth v], OA [auth w] | IPR015943 | WD40/YVTN repeat-like-containing domain superfamily | Homologous Superfamily |
LA [auth x], MA [auth y] | IPR039896 | Protein Red-like | Family |
LA [auth x], MA [auth y] | IPR012916 | RED-like, N-terminal | Domain |
LA [auth x], MA [auth y] | IPR012492 | Protein RED, C-terminal | Domain |
| JA [auth DH] | IPR048333 | Helicase associated domain (HA2), winged-helix domain | Domain |
| JA [auth DH] | IPR002464 | DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site | Conserved Site |
| JA [auth DH] | IPR011545 | DEAD/DEAH-box helicase domain | Domain |
| JA [auth DH] | IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| JA [auth DH] | IPR011709 | DEAD-box helicase, OB fold | Domain |
| JA [auth DH] | IPR001650 | Helicase, C-terminal domain-like | Domain |
| JA [auth DH] | IPR014001 | Helicase superfamily 1/2, ATP-binding domain | Domain |
| JA [auth DH] | IPR044756 | DHX15, DEXH-box helicase domain | Domain |
| JA [auth DH] | IPR007502 | Helicase-associated domain | Domain |
| HA [auth BL] | IPR016024 | Armadillo-type fold | Homologous Superfamily |
| HA [auth BL] | IPR039678 | Beta-catenin-like protein 1 | Family |
| HA [auth BL] | IPR011989 | Armadillo-like helical | Homologous Superfamily |
| HA [auth BL] | IPR013180 | Beta-catenin-like protein 1, N-terminal | Domain |
| GA [auth B6] | IPR000504 | RNA recognition motif domain | Domain |
| GA [auth B6] | IPR050374 | RRT5/SRSF/Splicing Factor SR | Family |
| GA [auth B6] | IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Homologous Superfamily |
| GA [auth B6] | IPR034150 | SF3B6, RNA recognition motif | Domain |
| GA [auth B6] | IPR035979 | RNA-binding domain superfamily | Homologous Superfamily |
| FA [auth B1] | IPR054573 | Phosphatase PP2A regulatory subunit A/Splicing factor 3B subunit 1-like, HEAT repeat | Domain |
| FA [auth B1] | IPR016024 | Armadillo-type fold | Homologous Superfamily |
| FA [auth B1] | IPR011989 | Armadillo-like helical | Homologous Superfamily |
| FA [auth B1] | IPR015016 | Splicing factor 3B subunit 1 | Domain |
| FA [auth B1] | IPR038737 | Splicing factor 3B subunit 1-like | Family |
| EA [auth B3] | IPR050358 | RSE1/DDB1/CPSF1 | Family |
| EA [auth B3] | IPR015943 | WD40/YVTN repeat-like-containing domain superfamily | Homologous Superfamily |
| EA [auth B3] | IPR036322 | WD40-repeat-containing domain superfamily | Homologous Superfamily |
| EA [auth B3] | IPR018846 | RSE1/DDB1/CPSF1, first beta-propeller | Domain |
| EA [auth B3] | IPR058543 | RSE1/DDB1/CPSF1, second beta-propeller | Domain |
| EA [auth B3] | IPR004871 | RSE1/DDB1/CPSF1, C-terminal | Domain |
| CA [auth B2] | IPR006568 | PSP, proline-rich | Domain |
| CA [auth B2] | IPR007180 | Domain of unknown function DUF382 | Domain |
| CA [auth B2] | IPR003034 | SAP domain | Domain |
| CA [auth B2] | IPR052584 | Pre-mRNA Spliceosomal U2 snRNP Complex Component | Family |
| BA [auth 8] | IPR031781 | SF3A2 domain | Domain |
| BA [auth 8] | IPR003604 | Matrin/U1-C-like, C2H2-type zinc finger | Domain |
| BA [auth 8] | IPR013087 | Zinc finger C2H2-type | Domain |
| BA [auth 8] | IPR052092 | Splicing Factor 3A Subunit 2 | Family |
| BA [auth 8] | IPR036236 | Zinc finger C2H2 superfamily | Homologous Superfamily |
| BA [auth 8] | IPR000690 | Matrin/U1-C, C2H2-type zinc finger | Domain |
| Z [auth B4] | IPR034159 | SF3B4, RNA recognition motif 2 | Domain |
| Z [auth B4] | IPR000504 | RNA recognition motif domain | Domain |
| Z [auth B4] | IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Homologous Superfamily |
| Z [auth B4] | IPR035979 | RNA-binding domain superfamily | Homologous Superfamily |
| Z [auth B4] | IPR034158 | SF3B4, RNA recognition motif 1 | Domain |
| Z [auth B4] | IPR052084 | Spliceosome-associated SF3B4 subunit | Family |
| Y [auth 2A] | IPR001611 | Leucine-rich repeat | Repeat |
| Y [auth 2A] | IPR003603 | U2A'/phosphoprotein 32 family A, C-terminal | Domain |
| Y [auth 2A] | IPR032675 | Leucine-rich repeat domain superfamily | Homologous Superfamily |
| Y [auth 2A] | IPR044640 | U2 small nuclear ribonucleoprotein A' | Family |
VA [auth 5e], W [auth 2e] | IPR027078 | Small nuclear ribonucleoprotein E | Family |
VA [auth 5e], W [auth 2e] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
VA [auth 5e], W [auth 2e] | IPR047575 | Sm domain | Domain |
VA [auth 5e], W [auth 2e] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
RA [auth 5b], T [auth 2b] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
RA [auth 5b], T [auth 2b] | IPR017131 | Small ribonucleoprotein associated, SmB/SmN | Family |
RA [auth 5b], T [auth 2b] | IPR047575 | Sm domain | Domain |
RA [auth 5b], T [auth 2b] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
S [auth 2f], WA [auth 5f] | IPR016487 | Sm-like protein Lsm6/SmF | Family |
S [auth 2f], WA [auth 5f] | IPR034100 | Small nuclear ribonucleoprotein F | Family |
S [auth 2f], WA [auth 5f] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
S [auth 2f], WA [auth 5f] | IPR047575 | Sm domain | Domain |
S [auth 2f], WA [auth 5f] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| R [auth 2B] | IPR034562 | U2 small nuclear ribonucleoprotein B'', RNA recognition motif 2 | Domain |
| R [auth 2B] | IPR000504 | RNA recognition motif domain | Domain |
| R [auth 2B] | IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Homologous Superfamily |
| R [auth 2B] | IPR035979 | RNA-binding domain superfamily | Homologous Superfamily |
| R [auth 2B] | IPR034564 | U2 small nuclear ribonucleoprotein B'', RNA recognition motif 1 | Domain |
Q [auth 22], TA [auth 52] | IPR001163 | Sm domain, eukaryotic/archaea-type | Domain |
Q [auth 22], TA [auth 52] | IPR047575 | Sm domain | Domain |
Q [auth 22], TA [auth 52] | IPR027248 | Small nuclear ribonucleoprotein Sm D2 | Family |
Q [auth 22], TA [auth 52] | IPR010920 | LSM domain superfamily | Homologous Superfamily |
| P [auth r] | IPR003604 | Matrin/U1-C-like, C2H2-type zinc finger | Domain |
| P [auth r] | IPR036236 | Zinc finger C2H2 superfamily | Homologous Superfamily |
| P [auth r] | IPR040107 | U4/U6.U5 small nuclear ribonucleoprotein component Snu23 | Family |
| P [auth r] | IPR022755 | Zinc finger, double-stranded RNA binding | Domain |
| O [auth q] | IPR039732 | Ubiquitin-like modifier Hub1/Ubl5 | Family |
| O [auth q] | IPR029071 | Ubiquitin-like domain superfamily | Homologous Superfamily |
| O [auth q] | IPR000626 | Ubiquitin-like domain | Domain |
| N [auth X] | IPR019007 | Wbp11/ELF5/Saf1, N-terminal domain | Domain |
| M [auth R] | IPR006973 | Pre-mRNA-splicing factor Cwf15/Cwc15 | Family |
| J [auth G] | IPR019775 | WD40 repeat, conserved site | Conserved Site |
| J [auth G] | IPR036322 | WD40-repeat-containing domain superfamily | Homologous Superfamily |
| J [auth G] | IPR045241 | WD repeat Prp46/PLRG1-like | Family |
| J [auth G] | IPR020472 | PAC1/LIS1-like, WD-40 repeat | Repeat |
| J [auth G] | IPR001680 | WD40 repeat | Repeat |
| J [auth G] | IPR015943 | WD40/YVTN repeat-like-containing domain superfamily | Homologous Superfamily |