Fig 1.
Construction of PreS fusion proteins. A, Chains 1 and 2 of Fel d 1 with peptides indicated. aa, Amino acid. B, Ribbon representation of Fel d 1 with peptides highlighted in different colors. C, PreS fusion proteins containing peptide 1 (P1; PreS-2xP1) or peptide 5 (P5; PreS-2xP5) at the N- and C-termini, as well as PreS-P1-P5 with an N-terminal P1 and C-terminal P5 peptide. Hexahistidine tags (6xHis) are at the C-terminal end.