Aliases for SF3B1 Gene
External Ids for SF3B1 Gene
Previous GeneCards Identifiers for SF3B1 Gene
This gene encodes subunit 1 of the splicing factor 3b protein complex. Splicing factor 3b, together with splicing factor 3a and a 12S RNA unit, forms the U2 small nuclear ribonucleoproteins complex (U2 snRNP). The splicing factor 3b/3a complex binds pre-mRNA upstream of the intron's branch site in a sequence independent manner and may anchor the U2 snRNP to the pre-mRNA. Splicing factor 3b is also a component of the minor U12-type spliceosome. The carboxy-terminal two-thirds of subunit 1 have 22 non-identical, tandem HEAT repeats that form rod-like, helical structures. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
GeneCards Summary for SF3B1 Gene
SF3B1 (Splicing Factor 3b, Subunit 1, 155kDa) is a Protein Coding gene. Diseases associated with SF3B1 include acquired idiopathic sideroblastic anemia and myelodysplastic syndrome. Among its related pathways are Translational Control and Gene Expression. GO annotations related to this gene include poly(A) RNA binding and binding.
UniProtKB/Swiss-Prot for SF3B1 Gene
Subunit of the splicing factor SF3B required for A complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the E complex. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron