Tags: Protein.
Cohesin subunit SA-1 is a protein that in humans is encoded by the STAG1 gene.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.