GGAA Microsatellite Repeat

**Semantic type:** Nucleotide Sequence

**Definition:** A microsatellite containing 18-26 repeats of the tetranucleotide sequence, GGAA. EWSR1/FLI1 and EWSR1/ETS family fusion proteins bind to GGAA microsatellite sequences in certain gene promoters, which aberrantly upregulates transcription of those genes and is associated with Ewing Sarcoma.

**Synonyms:** - GGAA Microsatellite - GGAA-Microsatellite