Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyRNA-binding domain RBD8039788 3000110 SCOP2B (2022-06-29)
B [auth C]SCOP2B SuperfamilyRNA-binding domain RBD8039788 3000110 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF00076e6n3fA1 A: a+b two layersX: Alpha-beta plaitsH: RNA-binding domain, RBD (From Topology)T: RNA-binding domain, RBDF: PF00076ECOD (1.6)
B [auth C]PF00076e6n3fC1 A: a+b two layersX: Alpha-beta plaitsH: RNA-binding domain, RBD (From Topology)T: RNA-binding domain, RBDF: PF00076ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.30.70.330 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits RRM (RNA recognition motif) domainCATH (4.3.0)
B [auth C]3.30.70.330 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits RRM (RNA recognition motif) domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A,
B [auth C]
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
C [auth D]PF08920Splicing factor 3B subunit 1 (SF3b1)Splicing factor 3B subunit 1This family consists of several eukaryotic splicing factor 3B subunit 1 proteins, which associate with p14 through a C-terminus beta-strand that interacts with beta-3 of the p14 RNA recognition motif (RRM) beta-sheet, which is in turn connected to an ...This family consists of several eukaryotic splicing factor 3B subunit 1 proteins, which associate with p14 through a C-terminus beta-strand that interacts with beta-3 of the p14 RNA recognition motif (RRM) beta-sheet, which is in turn connected to an alpha-helix by a loop that makes extensive contacts with both the shorter C-terminal helix and RRM of p14. This subunit is required for 'A' splicing complex assembly (formed by the stable binding of U2 snRNP to the branchpoint sequence in pre-mRNA) and 'E' splicing complex assembly [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A,
B [auth C]
HIV Tat-specific factor 1
C [auth D]SF3b1 U2AF ligand motif