The amino acid sequence had a feature containing a eukaryotic secretary signal C-terminal tetrapeptide lys-asp-glu-leu (KDEL) motif that typically located and retained in ER shared with H. vulgare and C. roseus.

• 同时,这几个基因氨基酸序列的C-末端都有一个定位于内质网的lys-asp-glu-leu(KDEL)信号肽框架,这个信号肽将它们特异的定位于内质网。