SF3B1

Splicing factor 3b, subunit 1, 155kDa
File:PBB Protein SF3B1 image.jpg PDB rendering based on 2f9d.
Available structures PDB Ortholog search: Template:Homologene2PDBe PDBe, Template:Homologene2uniprot RCSB List of PDB id codes 2f9d​, 2f9j​, 2fho​
Identifiers
Symbols	SF3B1 ; PRP10; PRPF10; SAP155; SF3b155
External IDs	Template:OMIM5 Template:MGI HomoloGene: 6696
Gene ontology Molecular function Template:GNF GO Template:GNF GO Template:GNF GO Cellular component Template:GNF GO Template:GNF GO Biological process Template:GNF GO Template:GNF GO Template:GNF GO
RNA expression pattern
File:PBB GE SF3B1 211185 s at tn.png
File:PBB GE SF3B1 201071 x at tn.png
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

Splicing factor 3b, subunit 1, 155kDa, also known as SF3B1, is a human 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.

Further reading

• Andersson B, Wentland MA, Ricafrente JY; et al. (1996). "A "double adaptor" method for improved shotgun library construction". Anal. Biochem. 236 (1): 107–13. doi:10.1006/abio.1996.0138. PMID 8619474.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Yu W, Andersson B, Worley KC; et al. (1997). "Large-scale concatenation cDNA sequencing". Genome Res. 7 (4): 353–8. PMID 9110174.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Wang C, Chua K, Seghezzi W; et al. (1998). "Phosphorylation of spliceosomal protein SAP 155 coupled with splicing catalysis". Genes Dev. 12 (10): 1409–14. PMID 9585501.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Gozani O, Potashkin J, Reed R (1998). "A potential role for U2AF-SAP 155 interactions in recruiting U2 snRNP to the branch site". Mol. Cell. Biol. 18 (8): 4752–60. PMID 9671485.CS1 maint: Multiple names: authors list (link)
• Das BK, Xia L, Palandjian L; et al. (2000). "Characterization of a protein complex containing spliceosomal proteins SAPs 49, 130, 145, and 155". Mol. Cell. Biol. 19 (10): 6796–802. PMID 10490618.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Pauling MH, McPheeters DS, Ares M (2000). "Functional Cus1p is found with Hsh155p in a multiprotein splicing factor associated with U2 snRNA". Mol. Cell. Biol. 20 (6): 2176–85. PMID 10688664.CS1 maint: Multiple names: authors list (link)
• Dias Neto E, Correa RG, Verjovski-Almeida S; et al. (2000). "Shotgun sequencing of the human transcriptome with ORF expressed sequence tags". Proc. Natl. Acad. Sci. U.S.A. 97 (7): 3491–6. PMID 10737800.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Das R, Zhou Z, Reed R (2000). "Functional association of U2 snRNP with the ATP-independent spliceosomal complex E.". Mol. Cell. 5 (5): 779–87. PMID 10882114.CS1 maint: Multiple names: authors list (link)
• Brand M, Moggs JG, Oulad-Abdelghani M; et al. (2001). "UV-damaged DNA-binding protein in the TFTC complex links DNA damage recognition to nucleosome acetylation". EMBO J. 20 (12): 3187–96. doi:10.1093/emboj/20.12.3187. PMID 11406595.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Will CL, Schneider C, MacMillan AM; et al. (2001). "A novel U2 and U11/U12 snRNP protein that associates with the pre-mRNA branch site". EMBO J. 20 (16): 4536–46. doi:10.1093/emboj/20.16.4536. PMID 11500380.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Jurica MS, Licklider LJ, Gygi SR; et al. (2002). "Purification and characterization of native spliceosomes suitable for three-dimensional structural analysis". RNA. 8 (4): 426–39. PMID 11991638.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Boudrez A, Beullens M, Waelkens E; et al. (2002). "Phosphorylation-dependent interaction between the splicing factors SAP155 and NIPP1". J. Biol. Chem. 277 (35): 31834–41. doi:10.1074/jbc.M204427200. PMID 12105215.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Will CL, Urlaub H, Achsel T; et al. (2002). "Characterization of novel SF3b and 17S U2 snRNP proteins, including a human Prp5p homologue and an SF3b DEAD-box protein". EMBO J. 21 (18): 4978–88. PMID 12234937.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMID 12477932.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Golas MM, Sander B, Will CL; et al. (2003). "Molecular architecture of the multiprotein splicing factor SF3b". Science. 300 (5621): 980–4. doi:10.1126/science.1084155. PMID 12738865.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Ota T, Suzuki Y, Nishikawa T; et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Banerjee H, Rahn A, Gawande B; et al. (2004). "The conserved RNA recognition motif 3 of U2 snRNA auxiliary factor (U2AF 65) is essential in vivo but dispensable for activity in vitro". RNA. 10 (2): 240–53. PMID 14730023.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Will CL, Schneider C, Hossbach M; et al. (2004). "The human 18S U11/U12 snRNP contains a set of novel proteins not found in the U2-dependent spliceosome". RNA. 10 (6): 929–41. PMID 15146077.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Beausoleil SA, Jedrychowski M, Schwartz D; et al. (2004). "Large-scale characterization of HeLa cell nuclear phosphoproteins". Proc. Natl. Acad. Sci. U.S.A. 101 (33): 12130–5. doi:10.1073/pnas.0404720101. PMID 15302935.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Lin KT, Lu RM, Tarn WY (2004). "The WW domain-containing proteins interact with the early spliceosome and participate in pre-mRNA splicing in vivo". Mol. Cell. Biol. 24 (20): 9176–85. doi:10.1128/MCB.24.20.9176-9185.2004. PMID 15456888.CS1 maint: Multiple names: authors list (link)