Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
FSCOP2B SuperfamilySm-like ribonucleoproteins8099110 3000419 SCOP2B (2022-06-29)
CSCOP2 FamilySm motif of small nuclear ribonucleoproteins SNRNP8063445 4001809 SCOP2 (2022-06-29)
CSCOP2 SuperfamilySm-like ribonucleoproteins8063446 3000419 SCOP2 (2022-06-29)
ESCOP2B SuperfamilySm-like ribonucleoproteins8063464 3000419 SCOP2B (2022-06-29)
GSCOP2B SuperfamilySm-like ribonucleoproteins8063498 3000419 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyARM repeat-like8053885 3000116 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
FPF01423e4c8qF1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
APF01423e4c8qA1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
BPF01423e4c8qB1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
CPF01423e4c8qC1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
DPF01423e4c8qD1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
EPF01423e4c8qE1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
GPF01423e4c8qG1 A: beta barrelsX: SH3H: SH3T: SH3F: PF01423ECOD (1.6)
HPF09770e4c8qH1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF09770ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
F2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
A2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
B2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
C2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
D2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
E2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)
G2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
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
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
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
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
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
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM6
SM-LIKE PROTEIN LSM1
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM2
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM3
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM4
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM5
U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM7
DNA TOPOISOMERASE 2-ASSOCIATED PROTEIN PAT1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR016487Sm-like protein Lsm6/SmFFamily
IPR010920LSM domain superfamilyHomologous Superfamily
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR044642U6 snRNA-associated Sm-like protein Lsm1/8Family
IPR034104Sm-like protein Lsm1Domain
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR016654U6 snRNA-associated Sm-like protein LSm2Family
IPR040002U6 snRNA-associated Sm-like protein Lsm3Family
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR034105Sm-like protein Lsm3Domain
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR027141Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3Family
IPR047575Sm domainDomain
IPR034101Sm-like protein Lsm4Domain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR033871Sm-like protein LSm5Domain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR044641Sm-like protein Lsm7/SmGFamily
IPR017132Sm-like protein Lsm7Family
IPR001163Sm domain, eukaryotic/archaea-typeDomain
IPR047575Sm domainDomain
IPR010920LSM domain superfamilyHomologous Superfamily
IPR039900Pat1-likeFamily
IPR019167mRNA decay factor PAT1 domainDomain