Sequence alignment of the A-tails of the Alu Ya5a2AD12 from different individuals. The sequence of the A-tail from the Alu element obtained from the human genome draft is shown on the top line. The sequence of the Alu body is not shown but is represented by the word ALU. The 3′ direct repeat is shown in gray italics and is represented by double arrowheads. Nucleotide substitutions at each position are indicated with the appropriate nucleotide or with an N when the nucleotide could not be clearly identified. The four populations analyzed are indicated inside each boxed group: African American (AFAM), Asian (ASIAN), German (GER), and Egyptian (EGY).
