作者:Hitomi KUMAGAI、Hidetoshi KONO、Hidetoshi SAKURAI、Keisuke TOKIMOTO
DOI:10.1271/bbb.66.2560
日期:2002.1
The characteristics of C-S lyase in Lentinus edodes (shiitake) were compared with those in Allium sativum (garlic). C-S lyase mRNA from shiitake was hybridized with the garlic C-S lyase cDNA fragment, being almost the same length as that from garlic. The isoelectric point of the C-S lyase from shiitake was between pH 4 and 5, while that from garlic was over a wider range between pH 4 and 8. Different from the C-S lyase from garlic, that from shiitake was not a glycoprotein without being stained by PAS, and was not bound to the anti-garlic C-S lyase antibody. Similar to garlic C-S lyase, shiitake C-S lyase comprised a homodimer, and its molecular mass was 84 kDa. However, the N-terminal amino acid sequences of each subunit of shiitake C-S lyase were totally different from those of garlic C-S lyase.
香菇(Lentinus edodes)中的C-S裂解酶特性与大蒜(Allium sativum)中的C-S裂解酶进行了比较。香菇的C-S裂解酶mRNA与大蒜的C-S裂解酶cDNA片段杂交,长度几乎与大蒜相同。香菇中C-S裂解酶的等电点在pH 4到5之间,而大蒜的等电点范围则更宽,从pH 4到8。与大蒜的C-S裂解酶不同,香菇的C-S裂解酶不是糖蛋白,未被PAS染色,也没有与抗大蒜C-S裂解酶抗体结合。与大蒜的C-S裂解酶相似,香菇的C-S裂解酶由同源二聚体组成,分子量为84 kDa。然而,香菇C-S裂解酶每个亚基的N端氨基酸序列与大蒜C-S裂解酶的序列完全不同。