However, the SNP rs3802842 associated with colorectal cancer (Fig. 3b)24, as well as the ABCA7 Alzheimer’s disease25 (Fig. 3f) and the TNFAIP3 rheumatoid arthritis26 (Fig. 3g) loci, all possess strong signals that are not attributed to known CNV, Indel or STR co-localisations. The gene discussed is ABCA7; the disease is colorectal cancer.