SF3A1, Official Symbol SF3A1provided by HGNC Official Full Name splicing factor 3a subunit 1provided by HGNC Primary source HGNC:HGNC:10765 See related Ensembl:ENSG00000099995 MIM:605595; AllianceGenome:HGNC:10765 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as PRP21; PRPF21; SAP114; SF3A120 Summary This gene encodes a subunit of the splicing factor 3a protein complex. The splicing factor 3a heterotrimer is a component of the mature U2 small nuclear ribonucleoprotein particle (snRNP). U2 small nuclear ribonucleoproteins play a critical role in spliceosome assembly and pre-mRNA splicing. [provided by RefSeq, Aug 2014] Expression Ubiquitous expression in testis (RPKM 34.4), ovary (RPKM 24.5) and 25 other tissues See more Orthologs mouse all