这个基因编码一个重要的剪接因子。编码的蛋白与U2辅助因子异源二聚体相关，这是识别前体mRNA剪接中功能性3’剪接位点所必需的，并且可能在剪接体组装过程中起到网络相互作用的作用。[由RefSeq提供，2008年7月]
This gene encodes an essential splicing factor. The encoded protein associates with the U2 auxiliary factor heterodimer, which is required for the recognition of a functional 3' splice site in pre-mRNA splicing, and may play a role in network interactions during spliceosome assembly. [provided by RefSeq, Jul 2008]