日本海水学会誌
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
ホヤの金属濃縮機構と海水中のレアメタルの選択的分取への応用
道端 齊植木 龍也
著者情報
ジャーナル フリー

2005 年 59 巻 5 号 p. 326-331

詳細
抄録

Rare metals such as vanadium and cobalt are dissolved in seawater at very low concentrations. Ascidians are known to accumulate extremely high levels of vanadium selectively. Vanadium is accumulated mainly in one type of their blood cells, and the concentration reaches 350 mM corresponding to107times that in seawater. Recently, we isolated vanadium-binding proteins, Vanabinl-5, from an vanadium-rich ascidian, Ascidia sydneiensis samea. Biochemical and structural analyses revealed that Vanabins make a novel protein family which is characterized by 18 conserved cysteine motif. They are thought to act as metal chaperones in ascidian blood cells. Vanabins can be used as an agent for selective bioaccumulation and biosorption of heavy metals.

著者関連情報
© 日本海水学会
前の記事 次の記事
feedback
Top