这个基因编码的蛋白质是基因组稳定性的重要调节因子该蛋白代表SLX1-SLX4结构特异性核酸内切酶的催化亚单位，它可以解析修复和重组过程中形成的DNA二级结构由于节段性重复，该基因的两个相同拷贝位于16号染色体的p臂上；该记录代表更多的着丝粒拷贝。选择性剪接导致多个转录变体该基因与下游SULT1A3（硫转移酶家族，胞质，1A，苯酚偏好，成员3）基因之间也存在读写转录[由RefSeq提供，2010年11月]
This gene encodes a protein that is an important regulator of genome stability. The protein represents the catalytic subunit of the SLX1-SLX4 structure-specific endonuclease, which can resolve DNA secondary structures that are formed during repair and recombination processes. Two identical copies of this gene are located on the p arm of chromosome 16 due to a segmental duplication; this record represents the more centromeric copy. Alternative splicing results in multiple transcript variants. Read-through transcription also occurs between this gene and the downstream SULT1A3 (sulfotransferase family, cytosolic, 1A, phenol-preferring, member 3) gene. [provided by RefSeq, Nov 2010]