這個基因編碼的蛋白質屬于parp家族。這些酶通過聚adp核糖化修飾核蛋白，這是dna修復、細胞凋亡調節和維持基因組穩定性所必需的。該基因編碼聚腺苷二磷酸核糖轉移酶3，在整個細胞周期中優先定位于子中心粒。另外，還發現了編碼不同亞型的剪接轉錄變體。[由RefSeq提供，2008年7月]
The protein encoded by this gene belongs to the PARP family. These enzymes modify nuclear proteins by poly-ADP-ribosylation, which is required for DNA repair, regulation of apoptosis, and maintenance of genomic stability. This gene encodes the poly(ADP-ribosyl)transferase 3, which is preferentially localized to the daughter centriole throughout the cell cycle. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]