Figure 1. Alignment of the domestic horse Prdm9 ZF domains.

The sequence validated as Prdm9 in the domestic horse (bold) was blasted against the horse genome using NCBI, UCSC and Ensemble browsers. Amino acid variation of the sequenced domestic horse is highlighted by blue open boxes. Linkers between ZF domains are indicated by grey bars, the beginning of ZF domains by dotted lines, stop codons by asterisks, and Cys₂His₂ residues by red letters.