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.
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Protein Aliases: 60S ribosomal protein L11; cell growth-inhibiting protein 34; CLL-associated antigen KW-12; Large ribosomal subunit protein uL5; RP11-223J15.3
Gene Aliases: 2010203J19Rik; DBA7; GIG34; L11; RPL11