PTPRJ and breast cancer: The Gln276Pro (rs1566734) and Arg326Gln (rs1503185) polymorphisms in PTPRJ are missense SNPs that were previously genotyped in colorectal, thyroid, lung, head and neck, oesophageal and breast cancers (Iuliano et al. 2004, 2010; Toland et al. 2008; Mita et al. 2010; Wei et al. 2013; Shangkuan et al. 2017).