该基因编码的蛋白质是富含丝氨酸/精氨酸（sr）的前mrna剪接因子家族的一员，构成剪接体的一部分。这些因子中的每一个都包含一个用于结合RNA的N末端RNA识别基序（RRM）和一个用于结合其他蛋白质的C末端RS结构域rs结构域富含丝氨酸和精氨酸残基，有利于不同sr剪接因子之间的相互作用。SR蛋白除了对mRNA剪接起关键作用外，还参与了细胞核mRNA的输出和翻译已发现该基因编码不同亚型的多个转录变体。
The protein encoded by this gene is a member of the serine/arginine (SR)-rich family of pre-mRNA splicing factors, which constitute part of the spliceosome. Each of these factors contains an N-terminal RNA recognition motif (RRM) for binding RNA and a C-terminal RS domain for binding other proteins. The RS domain is rich in serine and arginine residues and facilitates interaction between different SR splicing factors. In addition to being critical for mRNA splicing, the SR proteins have also been shown to be involved in mRNA export from the nucleus and in translation. Multiple transcript variants encoding different isoforms have been found for this gene.