BAT Locus

**Semantic type:** Gene or Genome

**Definition:** Microsatellite repeats that have been used as markers of microsatellite instability. BAT26, a poly(A) tract in MSH2 intron 5, is one example of a BAT locus. Presence of alterations in the BAT26 locus, detected in stool samples, may be an easy and non-invasive detection method for colorectal cancer.

**Synonyms:** - BAT Loci