Sunflower metallothionein family characterisation. Study of the Zn(II)- and Cd(II)-binding abilities of the HaMT1 and HaMT2 isoforms
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- 作者：M. Tomasa ; b ; M.A. Paganic ; C.S. Andreoc ; M. Capdevilaa ; S. Atrianb ; R. Bofilla ; Roger.Bofill@uab.cat" class="auth_mail" title="E-mail the corresponding author
- 关键词：Sunflower ; Metallothionein ; Plant MT ; Zn-binding ; Cd-binding ; Biological function
- 刊名：Journal of Inorganic Biochemistry
- 出版年：2015
- 出版时间：July 2015
- 年：2015
- 卷：148
- 期：Complete
- 页码：35-48
- 全文大小：2503 K
文摘
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Ten MT genes are identified in sunflower belonging to the four plant MT subfamilies.
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HaMT1-2 and HaMT2-1 are the genes transcribed at the highest basal levels.
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HaMT1-2 and HaMT2-1 contain extra Cys that modulate their M(II) binding abilities.
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The M(II)–HaMT1 complexes exhibit a precise proteolytic cleavage.
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HaMT1 may be involved in metal transfer and HaMT2 in Cd(II) detoxification.