Furthermore, a common breast cancer risk loci, rs9911630, is identified to be the most strongly expression-associated genotyped single nucleotide polymorphism (SNP) that affects the expression of BRCA1 and NBR2 in the Tunisian population, but whether this SNP is responsible for NBR2 expression in other populations is still not clear (98). The gene discussed is BRCA1; the disease is breast carcinoma.