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Comparison of the amino acid sequences of the homeodomains. Amino acid sequences of homeodomain of HESX1 (Accession number: NM_010420) [21, 22], PROP1 (Accession number: AB187272) [23], paired Q50 (Accession number: 1FJL_A) [20], and PRX2 (Accession number: D00584745) [26] are compared with those of porcine LHX2 and LHX3. Amino acid residues important for dimerization and for DNA-binding are marked with an asterisk (*) and shaded, respectively.
