3FEY

Crystal structure of the CBC-importin alpha complex.


ChainDomainClassArchitectureTopologyHomology
1.25.40.180 Mainly Alpha Alpha Horseshoe Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
3.30.70.330 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits RRM (RNA recognition motif) domain
1.25.10.10 Mainly Alpha Alpha Horseshoe Leucine-rich Repeat Variant Leucine-rich Repeat Variant

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
PF09088MIF4G like (MIF4G_like)MIF4G like- Repeat
PF09090MIF4G like (MIF4G_like_2)MIF4G like- Repeat
PF02854MIF4G domain (MIF4G)MIF4G domain- Repeat
PF00076RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain) (RRM_1)RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain)The RRM motif 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 mo ...The RRM motif 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
PF00514Armadillo/beta-catenin-like repeat (Arm)Armadillo/beta-catenin-like repeat- Repeat
PF01749Importin beta binding domain (IBB)Importin beta binding domain- Repeat
PF16186Atypical Arm repeat (Arm_3)Atypical Arm repeat- Repeat

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Nuclear cap-binding protein subunit 1
Nuclear cap-binding protein subunit 2
Importin subunit alpha-2