Aliases for SF3B4 Gene
External Ids for SF3B4 Gene
Previous GeneCards Identifiers for SF3B4 Gene
This gene encodes one of four subunits of the splicing factor 3B. The protein encoded by this gene cross-links to a region in the pre-mRNA immediately upstream of the branchpoint sequence in pre-mRNA in the prespliceosomal complex A. It also may be involved in the assembly of the B, C and E spliceosomal complexes. In addition to RNA-binding activity, this protein interacts directly and highly specifically with subunit 2 of the splicing factor 3B. This protein contains two N-terminal RNA-recognition motifs (RRMs), consistent with the observation that it binds directly to pre-mRNA. [provided by RefSeq, Jul 2008]
GeneCards Summary for SF3B4 Gene
SF3B4 (Splicing Factor 3b, Subunit 4, 49kDa) is a Protein Coding gene. Diseases associated with SF3B4 include acrofacial dysostosis 1, nager type and phocomelia. Among its related pathways are Gene Expression and mRNA Splicing - Major Pathway. GO annotations related to this gene include nucleic acid binding and nucleotide binding. An important paralog of this gene is PABPC1L2A.
UniProtKB/Swiss-Prot for SF3B4 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. SF3B4 has been found in complex B and C as well. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron