. . . . . . . . . . . . . . . . . . . . . . . . . . . . . "prrx1_mouse"^^ . "Paired-related homeobox protein 1"^^ . "Pmx1"^^ . "Pmx"^^ . "Homeobox protein K-2"^^ . "Prrx1"^^ . "Homeobox protein mHox"^^ . . "Paired mesoderm homeobox protein 1"^^ .