Figure 1From: Mitochondrial DNA haplogroups confer differences in risk for age-related macular degeneration: a case control study Schematic of circular mtDNA showing SNPs that define the H, J, T and U haplogroups. Cyt B, Cytochrome B; ND, NADH dehydrogenase; CO, Cytochrome c oxidase; ATPase, ATP synthase; D-loop, non-coding region between 16024 and 576.Back to article page