SF3A3

Splicing factor 3A subunit 3 is a protein that in humans is encoded by the SF3A3 gene.

SF3A3
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2DT7
Identifiers
Aliases	SF3A3, PRP9, PRPF9, SAP61, SF3a60, splicing factor 3a subunit 3
External IDs	OMIM: 605596; MGI: 1922312; HomoloGene: 4949; GeneCards: SF3A3; OMA:SF3A3 - orthologs
Gene location (Human) Chr. Chromosome 1 (human) Band 1p34.3 Start 37,956,975 bp End 37,990,075 bp
Gene location (Mouse) Chr. Chromosome 4 (mouse) Band 4|4 D2.2 Start 124,608,569 bp End 124,626,253 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in sural nerve Achilles tendon epithelium of colon ganglionic eminence ventricular zone monocyte rectum gastrocnemius muscle islet of Langerhans stromal cell of endometrium Top expressed in otic placode saccule otic vesicle primitive streak tail of embryo abdominal wall epiblast embryo primary oocyte mandibular prominence More reference expression data BioGPS More reference expression data
Gene ontology Molecular function zinc ion binding protein binding metal ion binding nucleic acid binding RNA binding Cellular component nuclear speck catalytic step 2 spliceosome spliceosomal complex nucleus nucleoplasm U2 snRNP U2-type precatalytic spliceosome Biological process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome mRNA processing mRNA 3'-splice site recognition RNA splicing U2-type prespliceosome assembly Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 10946 75062 Ensembl ENSG00000183431 ENSMUSG00000028902 UniProt Q12874 Q9D554 RefSeq (mRNA) NM_006802 NM_001320830 NM_029157 RefSeq (protein) NP_001307759 NP_006793 NP_083433 Location (UCSC) Chr 1: 37.96 – 37.99 Mb Chr 4: 124.61 – 124.63 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

This gene encodes subunit 3 of the splicing factor 3a protein complex. The splicing factor 3a heterotrimer includes subunits 1, 2 and 3 and is necessary for the in vitro conversion of 15S U2 snRNP into an active 17S particle that performs pre-mRNA splicing. Subunit 3 interacts with subunit 1 through its amino-terminus while the zinc finger domain of subunit 3 plays a role in its binding to the 15S U2 snRNP. This gene has a pseudogene on chromosome 20.

Interactions

SF3A3 has been shown to interact with SF3A1.

Further reading

• Maruyama K; Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
• Bonaldo MF; Lennon G; Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
• Neubauer G, King A, Rappsilber J, et al. (1998). "Mass spectrometry and EST-database searching allows characterization of the multi-protein spliceosome complex". Nat. Genet. 20 (1): 46–50. doi:10.1038/1700. PMID 9731529. S2CID 585778.
• 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. doi:10.1016/S1097-2765(00)80318-4. PMID 10882114.
• 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. PMC 125580. PMID 11500380.
• Nesic D; Krämer A (2001). "Domains in human splicing factors SF3a60 and SF3a66 required for binding to SF3a120, assembly of the 17S U2 snRNP, and prespliceosome formation". Mol. Cell. Biol. 21 (19): 6406–17. doi:10.1128/MCB.21.19.6406-6417.2001. PMC 99788. PMID 11533230.
• 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. doi:10.1017/S1355838202021088. PMC 1370266. PMID 11991638.
• 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. doi:10.1093/emboj/cdf480. PMC 126279. PMID 12234937.
• 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. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Dubois T; Zemlickova E; Howell S; Aitken A (2003). "Centaurin-alpha 1 associates in vitro and in vivo with nucleolin". Biochem. Biophys. Res. Commun. 301 (2): 502–8. doi:10.1016/S0006-291X(02)03010-3. PMID 12565890.
• Li J, Hawkins IC, Harvey CD, et al. (2003). "Regulation of alternative splicing by SRrp86 and its interacting proteins". Mol. Cell. Biol. 23 (21): 7437–47. doi:10.1128/MCB.23.21.7437-7447.2003. PMC 207616. PMID 14559993.
• Nesic D; Tanackovic G; Krämer A (2005). "A role for Cajal bodies in the final steps of U2 snRNP biogenesis". J. Cell Sci. 117 (Pt 19): 4423–33. doi:10.1242/jcs.01308. PMID 15316075.
• 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. PMC 517884. PMID 15456888.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Rush J, Moritz A, Lee KA, et al. (2005). "Immunoaffinity profiling of tyrosine phosphorylation in cancer cells". Nat. Biotechnol. 23 (1): 94–101. doi:10.1038/nbt1046. PMID 15592455. S2CID 7200157.
• Andersen JS, Lam YW, Leung AK, et al. (2005). "Nucleolar proteome dynamics". Nature. 433 (7021): 77–83. Bibcode:2005Natur.433...77A. doi:10.1038/nature03207. PMID 15635413. S2CID 4344740.
• Tanackovic G; Krämer A (2005). "Human splicing factor SF3a, but not SF1, is essential for pre-mRNA splicing in vivo". Mol. Biol. Cell. 16 (3): 1366–77. doi:10.1091/mbc.E04-11-1034. PMC 551499. PMID 15647371.