7DCO

Cryo-EM structure of the activated spliceosome (Bact complex) at an atomic resolution of 2.5 angstrom

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
S [auth j]	SCOP2 Family	Sm motif of small nuclear ribonucleoproteins, SNRNP	8102626	4001809	SCOP2 (2022-06-29)
S [auth j]	SCOP2 Superfamily	Sm-like ribonucleoproteins	8102627	3000419	SCOP2 (2022-06-29)
K [auth g]	SCOP2B Superfamily	Sm-like ribonucleoproteins	8098668	3000419	SCOP2B (2022-06-29)
T [auth k]	SCOP2B Superfamily	Sm-like ribonucleoproteins	8098668	3000419	SCOP2B (2022-06-29)
U [auth l]	SCOP2 Family	Sm motif of small nuclear ribonucleoproteins, SNRNP	8102624	4001809	SCOP2 (2022-06-29)
U [auth l]	SCOP2 Superfamily	Sm-like ribonucleoproteins	8102625	3000419	SCOP2 (2022-06-29)
Y [auth w]	SCOP2B Superfamily	Prp21-like	8093059	3002671	SCOP2B (2022-06-29)
EA [auth 5]	SCOP2 Family	Rds3p-like	8102620	4004075	SCOP2 (2022-06-29)
EA [auth 5]	SCOP2 Superfamily	Triquetra zinc finger motif	8102621	3002040	SCOP2 (2022-06-29)
Q [auth h]	SCOP2 Family	Sm motif of small nuclear ribonucleoproteins, SNRNP	8102618	4001809	SCOP2 (2022-06-29)
Q [auth h]	SCOP2 Superfamily	Sm-like ribonucleoproteins	8102619	3000419	SCOP2 (2022-06-29)
H [auth c]	SCOP2 Family	Sm motif of small nuclear ribonucleoproteins, SNRNP	8102634	4001809	SCOP2 (2022-06-29)
H [auth c]	SCOP2 Superfamily	Sm-like ribonucleoproteins	8102635	3000419	SCOP2 (2022-06-29)
R [auth i]	SCOP2 Family	Sm motif of small nuclear ribonucleoproteins, SNRNP	8102628	4001809	SCOP2 (2022-06-29)
R [auth i]	SCOP2 Superfamily	Sm-like ribonucleoproteins	8102629	3000419	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	U5_2-snRNA_bdg	e7dcoA6	A: alpha bundles	X: 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 polymerases	F: U5_2-snRNA_bdg	ECOD (1.6)
A	PROCN_C,PROCN_N	e7dcoA2	A: alpha complex topology	X: 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 domain	F: PROCN_C,PROCN_N	ECOD (1.6)
A	RRM_4	e7dcoA5	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RRM_4	ECOD (1.6)
A	PROCT	e7dcoA4	A: a+b three layers	X: Cytidine deaminase-like (From Topology)	H: Cytidine deaminase-like (From Topology)	T: Cytidine deaminase-like	F: PROCT	ECOD (1.6)
A	U6-snRNA_bdg	e7dcoA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: U6-snRNA_bdg	ECOD (1.6)
A	PRP8_domainIV	e7dcoA3	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: PRP8_domainIV	ECOD (1.6)
J [auth f]	LSM	e7dcof1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
S [auth j]	LSM	e7dcoj1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
K [auth g]	LSM	e7dcog1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
T [auth k]	LSM	e7dcok1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
O [auth o]	LRR_9	e7dcoo1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: LRR_9	ECOD (1.6)
P [auth p]	RRM_1_2	e7dcop1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_2	ECOD (1.6)
U [auth l]	LSM	e7dcol1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
Y [auth w]	PRP21_like_P	e7dcow1	A: alpha bundles	X: Surp module (SWAP domain) (From Topology)	H: Surp module (SWAP domain) (From Topology)	T: Surp module (SWAP domain)	F: PRP21_like_P	ECOD (1.6)
CA [auth 3]	CPSF_A_N	e7dco32	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: CPSF_A_N	ECOD (1.6)
CA [auth 3]	MMS1_N_C	e7dco33	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: MMS1_N_C	ECOD (1.6)
CA [auth 3]	MMS1_N_N	e7dco31	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: MMS1_N_N	ECOD (1.6)
CA [auth 3]	CPSF_A_C	e7dco34	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: CPSF_A_C	ECOD (1.6)
DA [auth 4]	RRM_1_1	e7dco41	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_1	ECOD (1.6)
DA [auth 4]	RRM_1_4	e7dco42	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_4	ECOD (1.6)
EA [auth 5]	KOG1705_like	e7dco52	A: few secondary structure elements	X: Glucocorticoid receptor-like	H: LIM domain-like	T: LIM domain-like	F: KOG1705_like	ECOD (1.6)
EA [auth 5]	PHF5_2	e7dco53	A: few secondary structure elements	X: Glucocorticoid receptor-like	H: LIM domain-like	T: LIM domain-like	F: PHF5_2	ECOD (1.6)
EA [auth 5]	PHF5_1,PHF5_2	e7dco51	A: few secondary structure elements	X: Glucocorticoid receptor-like	H: LIM domain-like	T: LIM domain-like	F: PHF5_1,PHF5_2	ECOD (1.6)
FA [auth 6]	SF3b10	e7dco61	A: alpha arrays	X: RDS3 complex subunit 10 (From Topology)	H: RDS3 complex subunit 10 (From Topology)	T: RDS3 complex subunit 10	F: SF3b10	ECOD (1.6)
MA [auth N]	G10	e7dcoN1	A: few secondary structure elements	X: Pre-mRNA-splicing factor BUD31 (From Topology)	H: Pre-mRNA-splicing factor BUD31 (From Topology)	T: Pre-mRNA-splicing factor BUD31	F: G10	ECOD (1.6)
NA [auth T]	ANAPC4_WD40_2	e7dcoT1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: ANAPC4_WD40_2	ECOD (1.6)
PA [auth Q]	RRM_1_7	e7dcoQ2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_7	ECOD (1.6)
PA [auth Q]	KOG0153	e7dcoQ1	A: few secondary structure elements	X: RING/U-box-like	H: RING/U-box-like	T: FYVE/PHD zinc finger	F: KOG0153	ECOD (1.6)
SA [auth Y]	FHA	e7dcoY1	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: FHA	ECOD (1.6)
TA [auth X]	RRM_1_4	e7dcoX1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_4	ECOD (1.6)
D	Sec63_3rd	e7dcoD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Sec63_3rd	ECOD (1.6)
D	KOG0952	e7dcoD8	A: alpha arrays	X: HTH	H: HTH	T: winged	F: KOG0952	ECOD (1.6)
D	Sec63_2nd_1	e7dcoD5	A: alpha arrays	X: HhH/H2TH	H: SAM-like subdomain in Sec63-like proteins (From Topology)	T: SAM-like subdomain in Sec63-like proteins	F: Sec63_2nd_1	ECOD (1.6)
D	Sec63_2nd	e7dcoD10	A: alpha arrays	X: HhH/H2TH	H: SAM-like subdomain in Sec63-like proteins (From Topology)	T: SAM-like subdomain in Sec63-like proteins	F: Sec63_2nd	ECOD (1.6)
D	Sec63_1st	e7dcoD11	A: alpha arrays	X: Sec63 N-terminal subdomain-like (From Topology)	H: Sec63 N-terminal subdomain-like (From Topology)	T: Sec63 N-terminal subdomain-like	F: Sec63_1st	ECOD (1.6)
D	EUF08005	e7dcoD6	A: alpha arrays	X: PWI domain-like	H: Pre-mRNA-splicing helicase BRR2 plug domain (From Topology)	T: Pre-mRNA-splicing helicase BRR2 plug domain	F: EUF08005	ECOD (1.6)
D	DEAD_1	e7dcoD3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1	ECOD (1.6)
D	Helicase_C_5	e7dcoD7	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_5	ECOD (1.6)
D	DEAD_1,KOG0951_2nd	e7dcoD9	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1,KOG0951_2nd	ECOD (1.6)
WA [auth U]	cwf21	e7dcoU1	A: alpha duplicates or obligate multimers	X: cwf21 domain (From Topology)	H: cwf21 domain (From Topology)	T: cwf21 domain	F: cwf21	ECOD (1.6)
XA [auth V]	MIF4G	e7dcoV2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: MIF4G	ECOD (1.6)
XA [auth V]	MA3	e7dcoV1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: MA3	ECOD (1.6)
ZA [auth z]	Pro_isomerase	e7dcoz1	A: beta barrels	X: Cyclophilin-like (From Topology)	H: Cyclophilin-like (From Topology)	T: Cyclophilin-like	F: Pro_isomerase	ECOD (1.6)
BB [auth J]	TPR_15	e7dcoJ1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_15	ECOD (1.6)
CB [auth I]	TPR_11_6	e7dcoI1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_6	ECOD (1.6)
DB [auth x]	OB_NTP_bind	e7dcox2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: OB_NTP_bind	ECOD (1.6)
DB [auth x]	HA2_N,HA2_C	e7dcox4	A: alpha arrays	X: Sec63 N-terminal subdomain-like (From Topology)	H: Sec63 N-terminal subdomain-like (From Topology)	T: Sec63 N-terminal subdomain-like	F: HA2_N,HA2_C	ECOD (1.6)
DB [auth x]	Helicase_C_7	e7dcox1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_7	ECOD (1.6)
DB [auth x]	HA2_N,DEAD_3	e7dcox3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: HA2_N,DEAD_3	ECOD (1.6)
E [auth d]	LSM	e7dcod1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
F [auth a]	LSM	e7dcoa1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
Q [auth h]	LSM	e7dcoh1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
G [auth b]	LSM	e7dcob1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
V [auth m]	LSM	e7dcom1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
H [auth c]	LSM	e7dcoc1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
W [auth n]	LSM	e7dcon1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
I [auth e]	LSM	e7dcoe1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)
R [auth i]	LSM	e7dcoi1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: LSM	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
FA [auth 6]	PF07189	Splicing factor 3B subunit 10 (SF3b10) (SF3b10)	Splicing factor 3B subunit 10 (SF3b10)	-	Family
GA [auth L]	PF00249	Myb-like DNA-binding domain (Myb_DNA-binding)	Myb-like DNA-binding domain	This family contains the DNA binding domains from Myb proteins, as well as the SANT domain family [1].	Domain
LA [auth K]	PF01423	LSM domain (LSM)	LSM domain	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) 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
SA [auth Y]	PF00498	FHA domain (FHA)	FHA domain	-	Family
SA [auth Y]	PF12656	G-patch domain (G-patch_2)	G-patch domain	Yeast Spp2, a G-patch protein and spliceosome component, interacts with the ATP-dependent DExH-box splicing factor Prp2 [1]. As this interaction involves the G-patch sequence in Spp2 and is required for the recruitment of Prp2 to the spliceosome befo ...	Yeast Spp2, a G-patch protein and spliceosome component, interacts with the ATP-dependent DExH-box splicing factor Prp2 [1]. As this interaction involves the G-patch sequence in Spp2 and is required for the recruitment of Prp2 to the spliceosome before the first catalytic step of splicing, it is proposed that Spp2 might be an accessory factor that confers spliceosome specificity on Prp2 [2].	Domain
VA [auth W]	PF12230	Pre-mRNA splicing factor PRP21 like protein (PRP21_like_P)	Pre-mRNA splicing factor PRP21 like protein	-	Family
VA [auth W]	PF01805	Surp module (Surp)	Surp module	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PRP8 isoform 1	-	-	-
J [auth f], S [auth j]	Sm protein F	-	-	-
K [auth g], T [auth k]	Small nuclear ribonucleoprotein G	RNA binding binding organic cyclic compound binding nucleic acid binding	ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing RNA splicing protein-containing complex organization cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions U2-type prespliceosome assembly mRNA splicing, via spliceosome cellular process metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process spliceosomal snRNP assembly mRNA splice site recognition mRNA 5'-splice site recognition mRNA cis splicing, via spliceosome RNA capping 7-methylguanosine cap hypermethylation macromolecule methylation RNA modification methylation macromolecule modification RNA 5'-end processing RNA methylation	membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4 snRNP small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4 snRNP small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex spliceosomal complex precatalytic spliceosome U2 snRNP catalytic step 2 spliceosome catalytic complex U4/U6 snRNP cytoplasm U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex U1 snRNP SMN-Sm protein complex U5 snRNP U2-type spliceosomal complex commitment complex prespliceosome U2-type prespliceosome
L [auth F]	U6 snRNA	-	-	-
M [auth G]	pre-mRNA	-	-	-
N [auth H]	U2 snRNA	-	-	-
O [auth o]	HLJ1_G0053790.mRNA.1.CDS.1	-	-	-
P [auth p]	BJ4_G0027490.mRNA.1.CDS.1	-	-	-
U [auth l]	Small nuclear ribonucleoprotein Sm D3	-	-	-
X [auth u]	PRP9 isoform 1	-	-	-
Y [auth w]	Pre-mRNA-splicing factor PRP21	RNA binding binding organic cyclic compound binding nucleic acid binding	cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization U2-type prespliceosome assembly	membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex U2 snRNP membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex U2 snRNP catalytic step 2 spliceosome catalytic complex spliceosomal complex U2-type spliceosomal complex prespliceosome U2-type prespliceosome
B	U5 snRNA	-	-	-
Z [auth v]	PRP11 isoform 1	-	-	-
AA [auth 1]	HSH155 isoform 1	-	-	-
BA [auth 2]	HLJ1_G0043010.mRNA.1.CDS.1	-	-	-
CA [auth 3]	RSE1 isoform 1	-	-	-
DA [auth 4]	HSH49 isoform 1	-	-	-
EA [auth 5]	BJ4_G0056610.mRNA.1.CDS.1	-	-	-
FA [auth 6]	RDS3 complex subunit 10	-	ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing RNA splicing protein-containing complex organization cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions U2-type prespliceosome assembly mRNA splicing, via spliceosome cellular process metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome spliceosomal snRNP complex membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U2 snRNP
GA [auth L]	Pre-mRNA-splicing factor CEF1	DNA binding binding organic cyclic compound binding nucleic acid binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis generation of catalytic spliceosome for second transesterification step protein-containing complex organization spliceosomal conformational changes to generate catalytic conformation	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex U2-type catalytic step 1 spliceosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex U2-type catalytic step 1 spliceosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex catalytic step 1 spliceosome Prp19 complex cytoplasm
HA [auth s], IA [auth t], JA [auth q], KA [auth r]	Pre-mRNA-processing factor 19	-	-	-
LA [auth K]	SNT309 isoform 1	-	-	-
C	SNU114 isoform 1	-	-	-
MA [auth N]	BUD31 isoform 1	-	-	-
NA [auth T]	HLJ1_G0054350.mRNA.1.CDS.1	-	-	-
OA [auth P]	Pre-mRNA-processing protein 45	-	-	-
PA [auth Q]	Pre-mRNA-splicing factor SLT11	-	-	-
QA [auth R]	Pre-mRNA-splicing factor CWC2	-	-	-
RA [auth S]	Pre-mRNA-splicing factor CWC15	RNA binding binding organic cyclic compound binding nucleic acid binding	cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex catalytic step 2 spliceosome catalytic complex
SA [auth Y]	Pre-mRNA leakage protein 1	RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport mRNA transport localization mRNA export from nucleus establishment of localization in cell RNA localization nuclear export nucleobase-containing compound transport RNA transport nucleic acid transport intracellular transport establishment of localization RNA export from nucleus establishment of RNA localization macromolecule localization ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization U2-type prespliceosome assembly maintenance of RNA location maintenance of location	membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure RES complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex ribonucleoprotein complex membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure RES complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex ribonucleoprotein complex U2 snRNP spliceosomal complex cytoplasm
TA [auth X]	SX2_G0027210.mRNA.1.CDS.1	-	-	-
UA [auth Z]	Pre-mRNA-splicing factor CWC26	-	-	-
VA [auth W]	CDC40 isoform 1	-	-	-
D	BRR2 isoform 1	-	-	-
WA [auth U]	Pre-mRNA-splicing factor CWC21	-	-	-
XA [auth V]	CWC22 isoform 1	-	-	-
YA [auth M]	Pre-mRNA-splicing factor CWC24	-	-	-
ZA [auth z]	CWC27 isoform 1	-	-	-
AB [auth y]	Pre-mRNA-splicing factor SPP2	binding organic cyclic compound binding nucleic acid binding ATPase activator activity molecular function activator activity molecular function regulator activity ATPase regulator activity	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing	intracellular anatomical structure cytoplasm cellular anatomical entity membrane-bounded organelle protein-containing complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle intracellular organelle spliceosomal complex organelle ribonucleoprotein complex
BB [auth J]	CLF1 isoform 1	-	-	-
CB [auth I]	SYF1 isoform 1	-	-	-
DB [auth x]	Pre-mRNA-splicing factor ATP-dependent RNA helicase-like protein PRP2	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity, acting on a nucleic acid helicase activity catalytic activity ATP-dependent activity ATP-dependent activity, acting on RNA pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity, acting on RNA RNA helicase activity RNA binding nucleic acid binding	ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing RNA splicing generation of catalytic spliceosome for first transesterification step protein-containing complex organization cellular metabolic process spliceosomal conformational changes to generate catalytic conformation primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome cellular process metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process sno(s)RNA processing sno(s)RNA metabolic process snoRNA splicing	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex U2-type catalytic step 1 spliceosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex U2-type catalytic step 1 spliceosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex catalytic step 1 spliceosome
E [auth d]	Small nuclear ribonucleoprotein Sm D3	-	-	-
F [auth a], Q [auth h]	BJ4_G0014900.mRNA.1.CDS.1	-	-	-
G [auth b], V [auth m]	SMD1 isoform 1	-	-	-
H [auth c], W [auth n]	BJ4_G0037700.mRNA.1.CDS.1	-	-	-
I [auth e], R [auth i]	Small nuclear ribonucleoprotein E	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
K [auth g], T [auth k]	IPR044641	Sm-like protein Lsm7/SmG	Family
K [auth g], T [auth k]	IPR034098	Small nuclear ribonucleoprotein G	Family
K [auth g], T [auth k]	IPR001163	Sm domain, eukaryotic/archaea-type	Domain
K [auth g], T [auth k]	IPR047575	Sm domain	Domain
K [auth g], T [auth k]	IPR010920	LSM domain superfamily	Homologous Superfamily
Y [auth w]	IPR045146	Splicing factor 3A subunit 1	Family
Y [auth w]	IPR035967	SWAP/Surp superfamily	Homologous Superfamily
Y [auth w]	IPR000061	SWAP/Surp	Domain
Y [auth w]	IPR022030	Splicing factor 3A subunit 1, conserved domain	Domain
FA [auth 6]	IPR009846	Splicing factor 3B subunit 5/RDS3 complex subunit 10	Family
GA [auth L]	IPR009057	Homedomain-like superfamily	Homologous Superfamily
GA [auth L]	IPR047240	Pre-mRNA splicing factor component CDC5L/Cef1, second SANT/myb-like domain	Domain
GA [auth L]	IPR017930	Myb domain	Domain
GA [auth L]	IPR047242	Pre-mRNA splicing factor component CDC5L/Cef1	Family
GA [auth L]	IPR001005	SANT/Myb domain	Domain
GA [auth L]	IPR021786	Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal	Domain
RA [auth S]	IPR006973	Pre-mRNA-splicing factor Cwf15/Cwc15	Family
SA [auth Y]	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
SA [auth Y]	IPR000253	Forkhead-associated (FHA) domain	Domain
SA [auth Y]	IPR050923	Cellular Process Regulator and RNA Processing Protein	Family
AB [auth y]	IPR026822	Spp2/MOS2, G-patch domain	Domain
AB [auth y]	IPR000467	G-patch domain	Domain
AB [auth y]	IPR045166	Pre-mRNA-splicing factor Spp2-like	Family
DB [auth x]	IPR011709	DEAD-box helicase, OB fold	Domain
DB [auth x]	IPR001650	Helicase, C-terminal domain-like	Domain
DB [auth x]	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
DB [auth x]	IPR048333	Helicase associated domain (HA2), winged-helix domain	Domain
DB [auth x]	IPR002464	DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site	Conserved Site
DB [auth x]	IPR007502	Helicase-associated domain	Domain
DB [auth x]	IPR011545	DEAD/DEAH box helicase domain	Domain
DB [auth x]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily