Construct: Amino acid replacement: V47L. Nucleotide substitution: GTC?CTC Amino acid replacement: W48G. Nucleotide substitution: UGG?GGG Amino acid replacement: F49I. Amino acid replacement: Q50P. Nucleotide substitution: CAA?CCA Amino acid replacement: N51S. Nucleotide substitution: AAT?AGT Amino acid replacement: R53K. Nucleotide substitution: AGG?AAG The numbering of amino acids starts at the beginning of the homeodomain.