Abstract
It is known that group 3 late embryogenesis abundant (G3LEA) proteins have the ability to protect membrane
and proteins from desiccation stress. G3LEA proteins commonly have characteristic 11-mer repeat motif. In
previous studies using model peptides composed of two or four tandem repeat of the 11-mer motif, we
suggested that the 11-mer motif region forms the core functional site of G3LEA proteins. However, the
biological role of non-repeat sequence regions remains unclear. In a previous preliminary study, we examined
the structural and functional properties of 22-mer model peptides for non-repeat regions of a G3LEA protein
(PvLEA4) in an African sleeping chironomid. Here, we more extensively investigate the role of non-repeat
regions using the same peptides.