STAG1（stromal antigen 1），癌症关联基因，基因ID：10274，该基因是scc3家族的一员，在细胞核中表达。它编码一种多亚单位蛋白质复合物-黏着素的成分，这种复合物通过前期和前期的DNA复制，沿着染色体长度提供姐妹染色单体的黏着，然后在后期分离。[由RefSeq提供，2008年7月]This gene is a member of the SCC3 family and is expressed in the nucleus. It encodes a component of cohesin， a multisubunit protein complex that provides sister chromatid cohesion along the length of a chromosome from DNA replication through prophase and prometaphase， after which it is dissociated in preparation for segregation during anaphase. [provided by RefSeq， Jul 2008]。