7ABF

Human pre-Bact-1 spliceosome core structure


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
O [auth A4]SCOP2B SuperfamilyFF domain8033785 3000078 SCOP2B (2022-06-29)
B [auth I]SCOP2B SuperfamilyPRP38-like8055808 3002318 SCOP2B (2022-06-29)
F [auth q]SCOP2B SuperfamilyUbiquitin-like8038047 3000157 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth Q]G10e7abfQ1 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)
L [auth G]ANAPC4_WD40_11e7abfG1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_11ECOD (1.6)
B [auth I]PRP38e7abfI1 A: alpha superhelicesX: Repetitive alpha hairpinsH: Pre-mRNA-splicing factor 38A (From Topology)T: Pre-mRNA-splicing factor 38AF: PRP38ECOD (1.6)
C [auth A]U5_2-snRNA_bdge7abfA3 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)
C [auth A]PROCN_C,PROCN_Ne7abfA1 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)
C [auth A]RRM_4e7abfA2 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)
C [auth A]U6-snRNA_bdge7abfA4 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 r]GTP_EFTU_D2_2e7abfr3 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: GTP_EFTU_D2_2ECOD (1.6)
D [auth r]EFG_IVe7abfr1 A: a+b two layersX: Ribosomal protein S5 domain 2-like (From Topology)H: Ribosomal protein S5 domain 2-like (From Topology)T: Ribosomal protein S5 domain 2-likeF: EFG_IVECOD (1.6)
D [auth r]EFG_Ce7abfr2 A: a+b two layersX: Alpha-beta plaitsH: EF-G C-terminal domain-like (From Topology)T: EF-G C-terminal domain-likeF: EFG_CECOD (1.6)
D [auth r]EFG_IIe7abfr4 A: a+b two layersX: Alpha-beta plaitsH: EF-G C-terminal domain-like (From Topology)T: EF-G C-terminal domain-likeF: EFG_IIECOD (1.6)
D [auth r]MnmE_helical_2nde7abfr5 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: MnmE_helical_2ndECOD (1.6)
E [auth N]PRP9_Ne7abfN1 A: few secondary structure elementsX: beta-beta-alpha zinc fingersH: beta-beta-alpha zinc fingers (From Topology)T: beta-beta-alpha zinc fingersF: PRP9_NECOD (1.6)
F [auth q]ubiquitin_4e7abfq1 A: a+b two layersX: beta-GraspH: Ubiquitin-relatedT: Ubiquitin-likeF: ubiquitin_4ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth Q]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
J [auth X]PF09429WW domain binding protein 11 (Wbp11)WW domain binding protein 11- Family
L [auth G]PF00400WD domain, G-beta repeat (WD40)WD domain, G-beta repeat- Repeat
N [auth K]PF06991Microfibril-associated/Pre-mRNA processing (MFAP1)Microfibril-associated/Pre-mRNA processing- Family
O [auth A4]PF01846FF domain (FF)FF domain- Family
B [auth I]PF03371PRP38 family (PRP38)PRP38 family- Family
C [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
C [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
C [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
C [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
C [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 r]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
D [auth r]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
D [auth r]PF14492Elongation Factor G, domain III (EFG_III)Elongation Factor G, domain IIIThis domain is found in Elongation Factor G. It shares a similar structure with domain V (Pfam:PF00679). Structural studies in drosophila indicate this is domain 3 [1].Domain
D [auth r]PF03144Elongation factor Tu domain 2 (GTP_EFTU_D2)Elongation factor Tu domain 2Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as e ...Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as elongation factor G and translation initiation factor IF-2. This domain is structurally related to Pfam:PF03143, and in fact has weak sequence matches to this domain.
Domain
D [auth r]PF03764Elongation factor G, domain IV (EFG_IV)Elongation factor G, domain IVThis domain is found in elongation factor G, elongation factor 2 and some tetracycline resistance proteins and adopts a ribosomal protein S5 domain 2-like fold.Domain
E [auth N]PF12171Zinc-finger double-stranded RNA-binding (zf-C2H2_jaz)Zinc-finger double-stranded RNA-binding- Family
F [auth q]PF00240Ubiquitin family (ubiquitin)Ubiquitin familyThis family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].
Domain
G [auth R]PF04889Cwf15/Cwc15 cell cycle control protein (Cwf_Cwc_15)Cwf15/Cwc15 cell cycle control protein- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth Q]Protein BUD31 homolog
J [auth X]WW domain-binding protein 11
K [auth v]SNW domain-containing protein 1
L [auth G]Pleiotropic regulator 1-
M [auth Z]MINX M3 RNA---
N [auth K]Microfibrillar-associated protein 1
O [auth A4]Transcription elongation regulator 1
B [auth I]Pre-mRNA-splicing factor 38A
C [auth A]Pre-mRNA-processing-splicing factor 8
D [auth r]116 kDa U5 small nuclear ribonucleoprotein component
E [auth N]Zinc finger matrin-type protein 2
F [auth q]Ubiquitin-like protein 5
G [auth R]Spliceosome-associated protein CWC15 homolog
H [auth 5]U5 small nuclear RNA---
I [auth 6]U6 small nuclear RNA---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth Q]IPR001748Pre-mRNA-splicing factor BUD31Family
A [auth Q]IPR018230BUD31/G10-related, conserved siteConserved Site
J [auth X]IPR019007WW domain binding protein 11Family
K [auth v]IPR017862SKI-interacting protein, SKIPFamily
K [auth v]IPR004015SKI-interacting protein SKIP, SNW domainDomain
L [auth G]IPR019775WD40 repeat, conserved siteConserved Site
L [auth G]IPR036322WD40-repeat-containing domain superfamilyHomologous Superfamily
L [auth G]IPR045241WD repeat Prp46/PLRG1-likeFamily
L [auth G]IPR001680WD40 repeatRepeat
L [auth G]IPR020472G-protein beta WD-40 repeatRepeat
L [auth G]IPR015943WD40/YVTN repeat-like-containing domain superfamilyHomologous Superfamily
N [auth K]IPR033194Microfibrillar-associated protein 1Family
N [auth K]IPR009730Micro-fibrillar-associated protein 1, C-terminalDomain
O [auth A4]IPR036517FF domain superfamilyHomologous Superfamily
O [auth A4]IPR002713FF domainDomain
O [auth A4]IPR036020WW domain superfamilyHomologous Superfamily
O [auth A4]IPR001202WW domainDomain
O [auth A4]IPR045148Transcription elongation regulator 1-likeFamily
B [auth I]IPR024767Pre-mRNA-splicing factor 38, C-terminalDomain
B [auth I]IPR005037Pre-mRNA-splicing factor 38Family
C [auth A]IPR012984PROCT domainDomain
C [auth A]IPR012591PRO8NT domainDomain
C [auth A]IPR019580Pre-mRNA-processing-splicing factor 8, U6-snRNA-bindingDomain
C [auth A]IPR027652Pre-mRNA-processing-splicing factor 8Family
C [auth A]IPR043172Prp8 RNase domain IV, palm regionHomologous Superfamily
C [auth A]IPR012592PROCN domainDomain
C [auth A]IPR012337Ribonuclease H-like superfamilyHomologous Superfamily
C [auth A]IPR043173Prp8 RNase domain IV, fingers regionHomologous Superfamily
C [auth A]IPR021983PRP8 domain IV coreDomain
C [auth A]IPR019581Pre-mRNA-processing-splicing factor 8, U5-snRNA-bindingDomain
C [auth A]IPR037518MPN domainDomain
C [auth A]IPR019582RNA recognition motif, spliceosomal PrP8Domain
C [auth A]IPR042516Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding domain superfamilyHomologous Superfamily
C [auth A]IPR000555JAB1/MPN/MOV34 metalloenzyme domainDomain
D [auth r]IPR005517Translation elongation factor EFG/EF2, domain IVDomain
D [auth r]IPR000795Translational (tr)-type GTP-binding domainDomain
D [auth r]IPR035647EF-G domain III/V-likeHomologous Superfamily
D [auth r]IPR035655116kDa U5 small nuclear ribonucleoprotein component, C-terminalDomain
D [auth r]IPR041095Elongation Factor G, domain IIDomain
D [auth r]IPR004161Translation elongation factor EFTu-like, domain 2Domain
D [auth r]IPR009000Translation protein, beta-barrel domain superfamilyHomologous Superfamily
D [auth r]IPR020568Ribosomal protein uS5 domain 2-type superfamilyHomologous Superfamily
D [auth r]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
D [auth r]IPR014721Small ribosomal subunit protein uS5 domain 2-type fold, subgroupHomologous Superfamily
D [auth r]IPR031950116kDa U5 small nuclear ribonucleoprotein component, N-terminalDomain
D [auth r]IPR000640Elongation factor EFG, domain V-likeDomain
D [auth r]IPR044121Snu114, GTP-binding domainDomain
D [auth r]IPR005225Small GTP-binding protein domainDomain
E [auth N]IPR003604Matrin/U1-C-like, C2H2-type zinc fingerDomain
E [auth N]IPR036236Zinc finger C2H2 superfamilyHomologous Superfamily
E [auth N]IPR040107U4/U6.U5 small nuclear ribonucleoprotein component Snu23Family
E [auth N]IPR022755Zinc finger, double-stranded RNA bindingDomain
F [auth q]IPR039732Ubiquitin-like modifier Hub1/Ubl5Family
F [auth q]IPR029071Ubiquitin-like domain superfamilyHomologous Superfamily
F [auth q]IPR000626Ubiquitin-like domainDomain
G [auth R]IPR006973Pre-mRNA-splicing factor Cwf15/Cwc15Family

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A [auth Q]PharosP41223
J [auth X]PharosQ9Y2W2
K [auth v]PharosQ13573
L [auth G]PharosO43660
N [auth K]PharosP55081
O [auth A4]PharosO14776
B [auth I]PharosQ8NAV1
C [auth A]PharosQ6P2Q9
D [auth r]PharosQ15029
E [auth N]PharosQ96NC0
F [auth q]PharosQ9BZL1
G [auth R]PharosQ9P013