7B9V

Yeast C complex spliceosome at 2.8 Angstrom resolution with Prp18/Slu7 bound


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
S [auth P]SCOP2 FamilyCwf15/Cwc15-like8103886 4005200 SCOP2 (2022-06-29)
S [auth P]SCOP2 SuperfamilyCwf15/Cwc15-like8103887 3002807 SCOP2 (2022-06-29)
Z [auth Y]SCOP2 FamilyCanonical RBD8102622 4000236 SCOP2 (2022-06-29)
Z [auth Y]SCOP2 SuperfamilyRNA-binding domain RBD8102623 3000110 SCOP2 (2022-06-29)
BA [auth a]SCOP2 FamilyFunctional domain of the splicing factor Prp188102616 4001092 SCOP2 (2022-06-29)
BA [auth a]SCOP2 SuperfamilyFunctional domain of the splicing factor Prp188102617 3000735 SCOP2 (2022-06-29)
EA [auth d]SCOP2B SuperfamilySm-like ribonucleoproteins8098694 3000419 SCOP2B (2022-06-29)
NA [auth n]SCOP2B SuperfamilySm-like ribonucleoproteins8098694 3000419 SCOP2B (2022-06-29)
GA [auth f]SCOP2B SuperfamilySm-like ribonucleoproteins8043703 3000419 SCOP2B (2022-06-29)
QA [auth q]SCOP2B SuperfamilySm-like ribonucleoproteins8043703 3000419 SCOP2B (2022-06-29)
CA [auth b]SCOP2B SuperfamilySm-like ribonucleoproteins8077613 3000419 SCOP2B (2022-06-29)
KA [auth k]SCOP2B SuperfamilySm-like ribonucleoproteins8077613 3000419 SCOP2B (2022-06-29)
RA [auth r]SCOP2B SuperfamilySm-like ribonucleoproteins8098668 3000419 SCOP2B (2022-06-29)
HA [auth g]SCOP2B SuperfamilySm-like ribonucleoproteins8098668 3000419 SCOP2B (2022-06-29)
IA [auth h]SCOP2B SuperfamilySm-like ribonucleoproteins8082631 3000419 SCOP2B (2022-06-29)
LA [auth l]SCOP2B SuperfamilySm-like ribonucleoproteins8082631 3000419 SCOP2B (2022-06-29)
JA [auth j]SCOP2B SuperfamilySm-like ribonucleoproteins8063490 3000419 SCOP2B (2022-06-29)
MA [auth m]SCOP2B SuperfamilySm-like ribonucleoproteins8063490 3000419 SCOP2B (2022-06-29)
D [auth A]SCOP2B SuperfamilyJAB1/MPN domain-like8053281 3001105 SCOP2B (2022-06-29)
D [auth A]SCOP2B SuperfamilyRibonuclease H-like8040983 3000143 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
M [auth J]ANAPC4_WD40_2e7b9vJ1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_2ECOD (1.6)
O [auth L]G10e7b9vL1 A: few secondary structure elementsX: Pre-mRNA-splicing factor BUD31 (From Topology)H: Pre-mRNA-splicing factor BUD31 (From Topology)T: Pre-mRNA-splicing factor BUD31F: G10ECOD (1.6)
Q [auth N]RRM_1_7e7b9vN2 A: a+b two layersX: Alpha-beta plaitsH: RNA-binding domain, RBD (From Topology)T: RNA-binding domain, RBDF: RRM_1_7ECOD (1.6)
Q [auth N]KOG0153e7b9vN1 A: few secondary structure elementsX: RING/U-box-likeH: RING/U-box-likeT: FYVE/PHD zinc fingerF: KOG0153ECOD (1.6)
T [auth Q]OB_NTP_binde7b9vQ1 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: OB_NTP_bindECOD (1.6)
T [auth Q]HA2_N,HA2_Ce7b9vQ2 A: alpha arraysX: Sec63 N-terminal subdomain-like (From Topology)H: Sec63 N-terminal subdomain-like (From Topology)T: Sec63 N-terminal subdomain-likeF: HA2_N,HA2_CECOD (1.6)
T [auth Q]Helicase_C_7e7b9vQ3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Helicase_C_7ECOD (1.6)
T [auth Q]HA2_N,DEAD_3e7b9vQ4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: HA2_N,DEAD_3ECOD (1.6)
U [auth R]cwf21e7b9vR1 A: alpha duplicates or obligate multimersX: cwf21 domain (From Topology)H: cwf21 domain (From Topology)T: cwf21 domainF: cwf21ECOD (1.6)
Z [auth Y]RRM_1_2e7b9vY1 A: a+b two layersX: Alpha-beta plaitsH: RNA-binding domain, RBD (From Topology)T: RNA-binding domain, RBDF: RRM_1_2ECOD (1.6)
BA [auth a]Prp18e7b9va1 A: alpha bundlesX: Functional domain of the splicing factor Prp18 (From Topology)H: Functional domain of the splicing factor Prp18 (From Topology)T: Functional domain of the splicing factor Prp18F: Prp18ECOD (1.6)
EA [auth d]LSMe7b9vd1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
NA [auth n]LSMe7b9vn1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
FA [auth e]LSMe7b9ve1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
PA [auth p]LSMe7b9vp1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
GA [auth f]LSMe7b9vf1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
QA [auth q]LSMe7b9vq1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
K [auth H]MIF4Ge7b9vH2 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: MIF4GECOD (1.6)
K [auth H]MA3e7b9vH1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: MA3ECOD (1.6)
V [auth S]TPR_15e7b9vS1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: TPR_15ECOD (1.6)
CA [auth b]LSMe7b9vb1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
KA [auth k]LSMe7b9vk1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
RA [auth r]LSMe7b9vr1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
HA [auth g]LSMe7b9vg1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
IA [auth h]LSMe7b9vh1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
LA [auth l]LSMe7b9vl1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
JA [auth j]LSMe7b9vj1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
MA [auth m]LSMe7b9vm1 A: beta barrelsX: SH3H: SH3T: SH3F: LSMECOD (1.6)
OA [auth o]ANAPC4_WD40_9e7b9vo1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_9ECOD (1.6)
D [auth A]U5_2-snRNA_bdge7b9vA1 A: alpha bundlesX: helical bundle domain in reverse transcriptase-like polymerases (From Topology)H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)T: helical bundle domain in reverse transcriptase-like polymerasesF: U5_2-snRNA_bdgECOD (1.6)
D [auth A]PROCN_C,PROCN_Ne7b9vA3 A: alpha complex topologyX: Pre-mRNA-splicing factor 8 N-terminal domain (From Topology)H: Pre-mRNA-splicing factor 8 N-terminal domain (From Topology)T: Pre-mRNA-splicing factor 8 N-terminal domainF: PROCN_C,PROCN_NECOD (1.6)
D [auth A]RRM_4e7b9vA2 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: RRM_4ECOD (1.6)
D [auth A]PROCTe7b9vA4 A: a+b three layersX: Cytidine deaminase-like (From Topology)H: Cytidine deaminase-like (From Topology)T: Cytidine deaminase-likeF: PROCTECOD (1.6)
D [auth A]U6-snRNA_bdge7b9vA6 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: U6-snRNA_bdgECOD (1.6)
D [auth A]PRP8_domainIVe7b9vA5 A: mixed a+b and a/bX: Ribonuclease H-likeH: Ribonuclease H-like (From Topology)T: Ribonuclease H-likeF: PRP8_domainIVECOD (1.6)
E [auth B]Sec63_3rde7b9vB5 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: Sec63_3rdECOD (1.6)
E [auth B]KOG0952e7b9vB6 A: alpha arraysX: HTHH: HTHT: wingedF: KOG0952ECOD (1.6)
E [auth B]Sec63_2nd_1e7b9vB1 A: alpha arraysX: HhH/H2THH: SAM-like subdomain in Sec63-like proteins (From Topology)T: SAM-like subdomain in Sec63-like proteinsF: Sec63_2nd_1ECOD (1.6)
E [auth B]Sec63_2nde7b9vB12 A: alpha arraysX: HhH/H2THH: SAM-like subdomain in Sec63-like proteins (From Topology)T: SAM-like subdomain in Sec63-like proteinsF: Sec63_2ndECOD (1.6)
E [auth B]Sec63_1ste7b9vB11 A: alpha arraysX: Sec63 N-terminal subdomain-like (From Topology)H: Sec63 N-terminal subdomain-like (From Topology)T: Sec63 N-terminal subdomain-likeF: Sec63_1stECOD (1.6)
E [auth B]DEAD_1e7b9vB10 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DEAD_1ECOD (1.6)
E [auth B]Helicase_C_5e7b9vB2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Helicase_C_5ECOD (1.6)
E [auth B]DEAD_1,KOG0951_2nde7b9vB3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DEAD_1,KOG0951_2ndECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
F [auth C]PF00679Elongation factor G C-terminus (EFG_C)Elongation factor G C-terminusThis domain includes the carboxyl terminal regions of Elongation factor G, elongation factor 2 and some tetracycline resistance proteins and adopt a ferredoxin-like fold.Domain
F [auth C]PF00009Elongation factor Tu GTP binding domain (GTP_EFTU)Elongation factor Tu GTP binding domainThis domain contains a P-loop motif, also found in several other families such as Pfam:PF00071, Pfam:PF00025 and Pfam:PF00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains.Domain
F [auth C]PF16004116 kDa U5 small nuclear ribonucleoprotein component N-terminus (EFTUD2)116 kDa U5 small nuclear ribonucleoprotein component N-terminus- Family
O [auth L]PF01125Pre-mRNA-splicing factor BUD31 (BUD31)Pre-mRNA-splicing factor BUD31This entry includes Pre-mRNA-splicing factor BUD31, also known as G10 protein, and its homologues. BUD31 is involved in the pre-mRNA splicing process [1-3] and it is highly conserved in a wide range of eukaryotic species. Human BUD31 may play a role ...This entry includes Pre-mRNA-splicing factor BUD31, also known as G10 protein, and its homologues. BUD31 is involved in the pre-mRNA splicing process [1-3] and it is highly conserved in a wide range of eukaryotic species. Human BUD31 may play a role as a regulator of androgen receptor (AR) transcriptional activity, probably increasing the AR transcriptional activity [4].
Domain
T [auth Q]PF04408Helicase associated domain (HA2), winged-helix (HA2_N)Helicase associated domain (HA2), winged-helixThe helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate wit ...The helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate with RecA domains at the N-terminal in completing an RNA binding channel to allow the helicases to keep a stable grip on the RNA [3] and assure its correct function. This entry represents the WH domain, which connects the N- (RecA domains) and C-terminal domains (ratchet-like and OB-fold) of helicases.
Domain
T [auth Q]PF07717Oligonucleotide/oligosaccharide-binding (OB)-fold (OB_NTP_bind)Oligonucleotide/oligosaccharide-binding (OB)-foldThis family is found towards the C-terminus of the DEAD-box helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. There do seem to be a couple of instances where it occurs by itself - e.g. Swiss: ...This family is found towards the C-terminus of the DEAD-box helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. There do seem to be a couple of instances where it occurs by itself - e.g. Swiss:Q84VZ2. The structure PDB:3i4u adopts an OB-fold. helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. This C-terminal domain of the yeast helicase contains an oligonucleotide/oligosaccharide-binding (OB)-fold which seems to be placed at the entrance of the putative nucleic acid cavity. It also constitutes the binding site for the G-patch-containing domain of Pfa1p. When found on DEAH/RHA helicases, this domain is central to the regulation of the helicase activity through its binding of both RNA and G-patch domain proteins [1].
Domain
T [auth Q]PF00270DEAD/DEAH box helicase (DEAD)DEAD/DEAH box helicaseMembers of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome ...Members of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome biogenesis, nucleocytoplasmic transport, translation, RNA decay and organellar gene expression.
Domain
T [auth Q]PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase.Domain
T [auth Q]PF21010Helicase associated domain (HA2), ratchet-like (HA2_C)Helicase associated domain (HA2), ratchet-likeThe helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain (Pfam:PF04408) and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains c ...The helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain (Pfam:PF04408) and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate with the RecA domains at the N-terminal in completing an RNA binding channel to allow the helicases to keep a stable grip on the RNA [3]. This entry represents the ratchet-like domain, which may be important for RNA translocation [1,2].
Domain
U [auth R]PF08312cwf21 domain (cwf21)cwf21 domainThe cwf21 family is involved in mRNA splicing. It has been isolated as a subcomplex of the splicosome in Schizosaccharomyces pombe [1]. The function of the cwf21 domain is to bind directly to the spliceosomal protein Prp8. Mutations in the cwf21 dom ...The cwf21 family is involved in mRNA splicing. It has been isolated as a subcomplex of the splicosome in Schizosaccharomyces pombe [1]. The function of the cwf21 domain is to bind directly to the spliceosomal protein Prp8. Mutations in the cwf21 domain prevent Prp8 from binding [2]. The structure of this domain has recently been solved which shows this domain to be composed of two alpha helices.
Domain
Z [auth Y]PF13893RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain) (RRM_5)RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain)The RRM motif is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The mo ...The RRM motif is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The motif also appears in a few single stranded DNA binding proteins.
Domain
BA [auth a]PF02840Prp18 domain (Prp18)Prp18 domain- Family
EA [auth d],
NA [auth n]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
FA [auth e],
PA [auth p]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
GA [auth f],
QA [auth q]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
P [auth M]PF16131Torus domain (Torus)Torus domainThis domain is found in pre-mRNA-splicing factor CWC2. It includes a CCCH-type zinc finger [1].Domain
P [auth M]PF00076RNA recognition motif (RRM_1)RNA recognition motifThe RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and pro ...The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The motif also appears in a few single stranded DNA binding proteins. The RRM structure consists of four strands and two helices arranged in an alpha/beta sandwich, with a third helix present during RNA binding in some cases The C-terminal beta strand (4th strand) and final helix are hard to align and have been omitted in the SEED alignment The LA proteins (Swiss:P05455) have an N terminal rrm which is included in the seed. There is a second region towards the C terminus that has some features characteristic of a rrm but does not appear to have the important structural core of a rrm. The LA proteins (Swiss:P05455) are one of the main autoantigens in Systemic lupus erythematosus (SLE), an autoimmune disease.
Domain
V [auth S]PF02184HAT (Half-A-TPR) repeat (HAT)HAT (Half-A-TPR) repeat- Repeat
CA [auth b],
KA [auth k]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
HA [auth g],
RA [auth r]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
IA [auth h],
LA [auth l]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
JA [auth j],
MA [auth m]
PF01423LSM domain (LSM)LSM domainThe LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) i ...The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins [3]. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.
Domain
D [auth A]PF10597U5-snRNA binding site 2 of PrP8 (U5_2-snRNA_bdg)U5-snRNA binding site 2 of PrP8The essential spliceosomal protein Prp8 interacts with U5 and U6 snRNAs and with specific pre-mRNA sequences that participate in catalysis [1]. This close association with crucial RNA sequences, together with extensive genetic evidence, suggests that ...The essential spliceosomal protein Prp8 interacts with U5 and U6 snRNAs and with specific pre-mRNA sequences that participate in catalysis [1]. This close association with crucial RNA sequences, together with extensive genetic evidence, suggests that Prp8 could directly affect the function of the catalytic core, perhaps acting as a splicing cofactor [2].
Domain
D [auth A]PF10598RNA recognition motif of the spliceosomal PrP8 (RRM_4)RNA recognition motif of the spliceosomal PrP8The large RNA-protein complex of the spliceosome catalyses pre-mRNA splicing. One of the most conserved core proteins is PrP8 which occupies a central position in the catalytic core of the spliceosome, and has been implicated in several crucial molec ...The large RNA-protein complex of the spliceosome catalyses pre-mRNA splicing. One of the most conserved core proteins is PrP8 which occupies a central position in the catalytic core of the spliceosome, and has been implicated in several crucial molecular rearrangements that occur there, and has recently come under the spotlight for its role in the inherited human disease, Retinitis Pigmentosa [1]. The RNA-recognition motif of PrP8 is highly conserved and provides a possible RNA binding centre for the 5-prime SS, BP, or 3-prime SS of pre-mRNA which are known to contact with Prp8. The most conserved regions of an RRM are defined as the RNP1 and RNP2 sequences. Recognition of RNA targets can also be modulated by a number of other factors, most notably the two loops beta1-alpha1, beta2-beta3 and the amino acid residues C-terminal to the RNP2 domain [2].
Domain
D [auth A]PF10596U6-snRNA interacting domain of PrP8 (U6-snRNA_bdg)U6-snRNA interacting domain of PrP8This domain incorporates the interacting site for the U6-snRNA as part of the U4/U6.U5 tri-snRNPs complex of the spliceosome, and is the prime candidate for the role of cofactor for the spliceosome's RNA core. The essential spliceosomal protein Prp8 ...This domain incorporates the interacting site for the U6-snRNA as part of the U4/U6.U5 tri-snRNPs complex of the spliceosome, and is the prime candidate for the role of cofactor for the spliceosome's RNA core. The essential spliceosomal protein Prp8 interacts with U5 and U6 snRNAs and with specific pre-mRNA sequences that participate in catalysis. This close association with crucial RNA sequences, together with extensive genetic evidence, suggests that Prp8 could directly affect the function of the catalytic core, perhaps acting as a splicing cofactor [1].
Domain
D [auth A]PF12134PRP8 domain IV core (PRP8_domainIV)PRP8 domain IV coreThis domain is found in eukaryotes, and is about 20 amino acids in length. It is found associated with Pfam:PF10597, Pfam:PF10596, Pfam:PF10598, Pfam:PF08083, Pfam:PF08082, Pfam:PF01398, Pfam:PF08084. There is a conserved LILR sequence motif. The dom ...This domain is found in eukaryotes, and is about 20 amino acids in length. It is found associated with Pfam:PF10597, Pfam:PF10596, Pfam:PF10598, Pfam:PF08083, Pfam:PF08082, Pfam:PF01398, Pfam:PF08084. There is a conserved LILR sequence motif. The domain is a selenomethionine domain in a subunit of the spliceosome. The function of PRP8 domain IV is believed to be interaction with the splicosomal core.
Domain
D [auth A]PF08082PRO8NT (NUC069), PrP8 N-terminal domain (PRO8NT)PRO8NT (NUC069), PrP8 N-terminal domainThe PRO8NT domain is found at the N-terminus of pre-mRNA splicing factors of PRO8 family [1]. The NLS or nuclear localisation signal for these spliceosome proteins begins at the start and runs for 60 residues. N-terminal to this domain is a highly va ...The PRO8NT domain is found at the N-terminus of pre-mRNA splicing factors of PRO8 family [1]. The NLS or nuclear localisation signal for these spliceosome proteins begins at the start and runs for 60 residues. N-terminal to this domain is a highly variable proline-rich region [4].
Domain
D [auth A]PF08083PROCN (NUC071) domain (PROCN)PROCN (NUC071) domainThe PROCN domain is the central domain in pre-mRNA splicing factors of PRO8 family [1].Domain
D [auth A]PF08084PROCT (NUC072) domain (PROCT)PROCT (NUC072) domainThe PROCT domain is the C-terminal domain in pre-mRNA splicing factors of PRO8 family [1].Domain
E [auth B]PF02889Sec63 Brl domain (Sec63)Sec63 Brl domain- Family
E [auth B]PF00270DEAD/DEAH box helicase (DEAD)DEAD/DEAH box helicaseMembers of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome ...Members of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome biogenesis, nucleocytoplasmic transport, translation, RNA decay and organellar gene expression.
Domain
E [auth B]PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth 2]U2 snRNA---
B [auth 5]U5 snRNA---
F [auth C]Pre-mRNA-splicing factor SNU114
G [auth D]Splicing factor YJU2---
H [auth E]5' exon of UBC4 mRNA---
J [auth G]Pre-mRNA-splicing factor ISY1---
L [auth I]Branched intron and 3' exon of UBC4 pre-mRNA---
M [auth J]BJ4_G0054360.mRNA.1.CDS.1---
O [auth L]BUD31 isoform 1- -
Q [auth N]Pre-mRNA-splicing factor SLT11---
R [auth O]Y55_G0042700.mRNA.1.CDS.1---
S [auth P]Pre-mRNA-splicing factor CWC15---
T [auth Q]Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP16
U [auth R]Pre-mRNA-splicing factor CWC21-
W [auth T]SYF1 isoform 1---
Z [auth Y]BJ4_G0027490.mRNA.1.CDS.1 - -
AA [auth Z]NTC20 isoform 1---
BA [auth a]Pre-mRNA-splicing factor 18-
DA [auth c]Pre-mRNA-splicing factor SLU7---
EA [auth d],
NA [auth n]
Small nuclear ribonucleoprotein Sm D3
FA [auth e],
PA [auth p]
Small nuclear ribonucleoprotein E
GA [auth f],
QA [auth q]
Small nuclear ribonucleoprotein F
XA [auth y]Pre-mRNA-splicing factor SYF2---
K [auth H]CWC22 isoform 1---
N [auth K]Pre-mRNA-processing protein 45---
P [auth M]Pre-mRNA-splicing factor CWC2
V [auth S]CLF1 isoform 1-
X [auth W]HLJ1_G0053790.mRNA.1.CDS.1-
Y [auth X]Unassigned structure---
CA [auth b],
KA [auth k]
Small nuclear ribonucleoprotein-associated protein B
C [auth 6]U6 snRNA---
HA [auth g],
RA [auth r]
Small nuclear ribonucleoprotein G
IA [auth h],
LA [auth l]
Small nuclear ribonucleoprotein Sm D1
JA [auth j],
MA [auth m]
Small nuclear ribonucleoprotein Sm D2
OA [auth o]CDC40 isoform 1---
SA [auth s]SNT309 isoform 1---
TA [auth t],
UA [auth u],
VA [auth v],
WA [auth w]
Pre-mRNA-processing factor 19---
D [auth A]Pre-mRNA-splicing factor 8
E [auth B]Pre-mRNA-splicing helicase BRR2
I [auth F]Pre-mRNA-splicing factor CWC25---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
F [auth C]IPR031950116kDa U5 small nuclear ribonucleoprotein component, N-terminalDomain
F [auth C]IPR005517Translation elongation factor EFG/EF2, domain IVDomain
F [auth C]IPR000795Translational (tr)-type GTP-binding domainDomain
F [auth C]IPR000640Elongation factor EFG, domain V-likeDomain
F [auth C]IPR035647EF-G domain III/V-likeHomologous Superfamily
F [auth C]IPR035655116kDa U5 small nuclear ribonucleoprotein component, C-terminalDomain
F [auth C]IPR044121Snu114, GTP-binding domainDomain
F [auth C]IPR009000Translation protein, beta-barrel domain superfamilyHomologous Superfamily
F [auth C]IPR020568Ribosomal protein uS5 domain 2-type superfamilyHomologous Superfamily
F [auth C]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
F [auth C]IPR014721Small ribosomal subunit protein uS5 domain 2-type fold, subgroupHomologous Superfamily
O [auth L]IPR001748Pre-mRNA-splicing factor BUD31Family
O [auth L]IPR018230BUD31/G10-related, conserved siteConserved Site
T [auth Q]IPR011709DEAD-box helicase, OB foldDomain
T [auth Q]IPR001650Helicase, C-terminal domain-likeDomain
T [auth Q]IPR014001Helicase superfamily 1/2, ATP-binding domainDomain
T [auth Q]IPR048333Helicase associated domain (HA2), winged-helix domainDomain
T [auth Q]IPR002464DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved siteConserved Site
T [auth Q]IPR007502Helicase-associated domainDomain
T [auth Q]IPR011545DEAD/DEAH box helicase domainDomain
T [auth Q]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
U [auth R]IPR013170mRNA splicing factor Cwf21 domainDomain
Z [auth Y]IPR012677Nucleotide-binding alpha-beta plait domain superfamilyHomologous Superfamily
Z [auth Y]IPR000504RNA recognition motif domainDomain
Z [auth Y]IPR035979RNA-binding domain superfamilyHomologous Superfamily
BA [auth a]IPR039979Pre-mRNA-splicing factor 18Family
BA [auth a]IPR004098Prp18Domain
EA [auth d],
NA [auth n]
IPR027141Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3Family
EA [auth d],
NA [auth n]
IPR034099Small nuclear ribonucleoprotein Sm D3Family
EA [auth d],
NA [auth n]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
EA [auth d],
NA [auth n]
IPR047575Sm domainDomain
EA [auth d],
NA [auth n]
IPR010920LSM domain superfamilyHomologous Superfamily
FA [auth e],
PA [auth p]
IPR027078Small nuclear ribonucleoprotein EFamily
FA [auth e],
PA [auth p]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
FA [auth e],
PA [auth p]
IPR047575Sm domainDomain
FA [auth e],
PA [auth p]
IPR010920LSM domain superfamilyHomologous Superfamily
GA [auth f],
QA [auth q]
IPR016487Sm-like protein Lsm6/SmFFamily
GA [auth f],
QA [auth q]
IPR034100Small nuclear ribonucleoprotein FFamily
GA [auth f],
QA [auth q]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
GA [auth f],
QA [auth q]
IPR047575Sm domainDomain
GA [auth f],
QA [auth q]
IPR010920LSM domain superfamilyHomologous Superfamily
P [auth M]IPR039171Pre-mRNA-splicing factor Cwc2/Slt11Family
P [auth M]IPR034181Pre-mRNA-splicing factor Cwc2, RNA recognition motifDomain
P [auth M]IPR012677Nucleotide-binding alpha-beta plait domain superfamilyHomologous Superfamily
P [auth M]IPR000504RNA recognition motif domainDomain
P [auth M]IPR032297Torus domainDomain
P [auth M]IPR000571Zinc finger, CCCH-typeDomain
P [auth M]IPR035979RNA-binding domain superfamilyHomologous Superfamily
V [auth S]IPR003107HAT (Half-A-TPR) repeatRepeat
V [auth S]IPR045075Pre-mRNA-splicing factor Syf1-likeFamily
V [auth S]IPR011990Tetratricopeptide-like helical domain superfamilyHomologous Superfamily
X [auth W]IPR032675Leucine-rich repeat domain superfamilyHomologous Superfamily
X [auth W]IPR001611Leucine-rich repeatRepeat
X [auth W]IPR003603U2A'/phosphoprotein 32 family A, C-terminalDomain
CA [auth b],
KA [auth k]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
CA [auth b],
KA [auth k]
IPR047575Sm domainDomain
CA [auth b],
KA [auth k]
IPR010920LSM domain superfamilyHomologous Superfamily
HA [auth g],
RA [auth r]
IPR044641Sm-like protein Lsm7/SmGFamily
HA [auth g],
RA [auth r]
IPR034098Small nuclear ribonucleoprotein GFamily
HA [auth g],
RA [auth r]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
HA [auth g],
RA [auth r]
IPR047575Sm domainDomain
HA [auth g],
RA [auth r]
IPR010920LSM domain superfamilyHomologous Superfamily
IA [auth h],
LA [auth l]
IPR027141Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3Family
IA [auth h],
LA [auth l]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IA [auth h],
LA [auth l]
IPR047575Sm domainDomain
IA [auth h],
LA [auth l]
IPR010920LSM domain superfamilyHomologous Superfamily
JA [auth j],
MA [auth m]
IPR001163Sm domain, eukaryotic/archaea-typeDomain
JA [auth j],
MA [auth m]
IPR047575Sm domainDomain
JA [auth j],
MA [auth m]
IPR027248Small nuclear ribonucleoprotein Sm D2Family
JA [auth j],
MA [auth m]
IPR010920LSM domain superfamilyHomologous Superfamily
D [auth A]IPR012984PROCT domainDomain
D [auth A]IPR012591PRO8NT domainDomain
D [auth A]IPR019580Pre-mRNA-processing-splicing factor 8, U6-snRNA-bindingDomain
D [auth A]IPR027652Pre-mRNA-processing-splicing factor 8Family
D [auth A]IPR043172Prp8 RNase domain IV, palm regionHomologous Superfamily
D [auth A]IPR012592PROCN domainDomain
D [auth A]IPR012337Ribonuclease H-like superfamilyHomologous Superfamily
D [auth A]IPR043173Prp8 RNase domain IV, fingers regionHomologous Superfamily
D [auth A]IPR021983PRP8 domain IV coreDomain
D [auth A]IPR019581Pre-mRNA-processing-splicing factor 8, U5-snRNA-bindingDomain
D [auth A]IPR037518MPN domainDomain
D [auth A]IPR019582RNA recognition motif, spliceosomal PrP8Domain
D [auth A]IPR042516Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding domain superfamilyHomologous Superfamily
D [auth A]IPR000555JAB1/MPN/MOV34 metalloenzyme domainDomain
E [auth B]IPR001650Helicase, C-terminal domain-likeDomain
E [auth B]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
E [auth B]IPR014001Helicase superfamily 1/2, ATP-binding domainDomain
E [auth B]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
E [auth B]IPR048863Pre-mRNA-splicing helicase BRR2-like, plug domainDomain
E [auth B]IPR041094Brr2, N-terminal helicase PWI domainDomain
E [auth B]IPR004179Sec63 domainDomain
E [auth B]IPR035892C2 domain superfamilyHomologous Superfamily
E [auth B]IPR014756Immunoglobulin E-setHomologous Superfamily
E [auth B]IPR011545DEAD/DEAH box helicase domainDomain
E [auth B]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
G [auth D]UNK
J [auth G]UNK
R [auth O]UNK
Y [auth X]UNK
OA [auth o]SEP Parent Component: SER

RESIDAA0037

PSI-MOD :  O-phospho-L-serine MOD:00046
I [auth F]UNK RESIDAA0037