Fig. 1.

a Schematic diagram of the protein domains of C. riparius HSP27 showing a conserved amino-terminal (1–11) and carboxy-terminal (158–186) region, a specific conserved region of HSP27 (37–49), α-crystallin domain (85–158) and the only cysteine (91). b Amino acid sequence comparison of heat shock protein 27 (HSP27) homologs from C. riparius (Chr), C. capitata (Cec), D. melanogaster (Drm) and S. crassipalpis (Sac). Asterisks, double dots, and single dots denote fully conserved, strongly conserved and weakly conserved amino acid residues, respectively. The three conserved regions characteristics of HSP27 are shown in purple