Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth 2]SCOP2B SuperfamilySMN protein Gemin2-like8092161 3002565 SCOP2B (2022-06-29)
B [auth A]SCOP2B SuperfamilySm-like ribonucleoproteins8041748 3000419 SCOP2B (2022-06-29)
C [auth B]SCOP2B SuperfamilySm-like ribonucleoproteins8041749 3000419 SCOP2B (2022-06-29)
D [auth E]SCOP2B SuperfamilySm-like ribonucleoproteins8063476 3000419 SCOP2B (2022-06-29)
E [auth F]SCOP2B SuperfamilySm-like ribonucleoproteins8063452 3000419 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth 2]PF04938e5xjs21 A: alpha superhelicesX: Repetitive alpha hairpinsH: Survival of motor neuron protein-interacting protein 1 (From Topology)T: Survival of motor neuron protein-interacting protein 1F: PF04938ECOD (1.6)
B [auth A]PF01423e5xjsA1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
C [auth B]PF01423e5xjsB1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
D [auth E]PF01423e5xjsE1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
E [auth F]PF01423e5xjsF1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B [auth A]2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
C [auth B]2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
D [auth E]2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
E [auth F]2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth 2]PF04938Survival motor neuron (SMN) interacting protein 1 (SIP1) (SIP1)Survival motor neuron (SMN) interacting protein 1 (SIP1)- Family
B [auth A]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
C [auth B]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 E]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
E [auth F]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
F [auth M]PF20636Survival Motor Neuron, Gemin2-binding domain (SMN_G2-BD)Survival Motor Neuron, Gemin2-binding domainSurvival Motor Neuron (SMN) protein forms the oligomeric core of a multi-protein complex that functions in spliceosomal snRNP biogenesis. It has three highly conserved domains: a short N-terminal segment responsible for binding with high affinity to ...Survival Motor Neuron (SMN) protein forms the oligomeric core of a multi-protein complex that functions in spliceosomal snRNP biogenesis. It has three highly conserved domains: a short N-terminal segment responsible for binding with high affinity to Gemin2 (a protein involved in snRNP assembly), therefore, called Gemin2-binding domain (G2-BD), a central Tudor domain (Pfam:PF06003) that recognises symmetric dimethylarginine (sDMA) modifications in proteins involved in RNA processing, and a C-terminal domain, referred to as the 'YG-box' domain (Pfam:PF20635) [1,2]. This is the Gemin2-binding domain (G2-BD) of SMN proteins [1,2,3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth 2]Gem-associated protein 2-
B [auth A]Small nuclear ribonucleoprotein Sm D1
C [auth B]Small nuclear ribonucleoprotein Sm D2
D [auth E]Small nuclear ribonucleoprotein E
E [auth F]Small nuclear ribonucleoprotein F
F [auth M]Survival motor neuron protein

InterPro: Protein Family Classification InterPro Database Homepage