From SNPedia
rs4151620(C;G) and
rs4151620(G;G) are associated with a reduced risk of
ovarian cancer compared with
rs4151620(G;G) individuals.
This snp has been linked to ovarian cancer [PMID 17047088]
Intron 17 of RB1 contains the open reading frame for the P2RY5 gene, and rs4151620 is perfectly correlated with rs2227311, which is located in the 5'-untranslated region of P2RY5 and is predicted to affect P2RY5 transcription. rs2854344 has been reported previously to be associated with breast cancer risk [PMID 16685266]