A large duplication involving CNTN4 unique to POAG patients. The scheme displays the genomic perspective of the large duplication on 3p26.3 found in both the cohorts and was absent in all controls, including DGV. The green rectangles represent the regions under individual duplication and below the refseq genes are shown. Note that CNTN4 is the only gene that completely encompasses the overlapping region of the two CNVs. In Indian POAG, this was a 1.3 Mb duplication (chr3:1,761,751- 3,086,458) while in the Caucasian dataset it was a 2.2 Mb duplication (chr3: 2,034,893- 4,258,763). The coordinates are from hg18.