Amino acid and nucleotides sequences of the ankyrin-repeat microgenes. (A), Amino-acid sequence of the previously described ankyrin-repeat module . (B), Amino-acid sequence of the ankyrin-repeat used in the present study. (C), Nucleotide sequence of the ankyrin microgenes. (D), Set of partially randomized codons used at each variegated position is indicated. (*), the full sequence of the set of oligonucleotides will be communicated upon request. (E), Position of the different types of oligonucleotides used to synthetized the ankyrins microgenes along the nucleotide sequence.