揭示硒生物矿化的奥秘：与生物纳米矿物相关的蛋白质。
Shedding light on selenium biomineralization: proteins associated with bionanominerals.
机构信息
Institute for Ecopreneurship, University of Applied Sciences Northwestern Switzerland (FHNW), School of Life Sciences, Gründenstrasse 40, 4132 Muttenz, Switzerland.
出版信息
Appl Environ Microbiol. 2011 Jul;77(13):4676-80. doi: 10.1128/AEM.01713-10. Epub 2011 May 20.
Abstract
Selenium-reducing microorganisms produce elemental selenium nanoparticles with particular physicochemical properties due to an associated organic fraction. This study identified high-affinity proteins associated with such bionanominerals and with nonbiogenic elemental selenium. Proteins with an anticipated functional role in selenium reduction, such as a metalloid reductase, were found to be associated with nanoparticles formed by one selenium respirer, Sulfurospirillum barnesii.
摘要
由于相关的有机成分，还原硒的微生物会产生具有特殊物理化学性质的元素硒纳米颗粒。本研究鉴定了与这种生物纳米矿物质和非生物元素硒相关的高亲和力蛋白质。与硒还原相关的具有预期功能作用的蛋白质，如类金属还原剂，被发现与一种硒呼吸菌 Sulfurospirillum barnesii 形成的纳米颗粒有关。
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