一种多用途的化物:来自有机酸降解热甲氧细菌sp的铁素氧降解酶. 菌株X51414是第一个
Laura Sofie Nissen1, Jimyung Moon2, Lisa Hitschler2
1Microbiology, Institute of Biological Sciences, University of Rostock, D-18059 Rostock, Germany.
International journal of molecular sciences
|January 23, 2024
概括
我们特征了一种新型的化物:来自Thermoanaerobacter sp.的ferredoxin氧降解酶 (AOR). 这是X514菌株. 这种酶有效地将各种类别的化物转化为酸,并表现出广泛的活性,为未来的结构研究铺平了道路.
科学领域:
- 生物化学 生物化学
- 酶学 是一种酶学.
- 微生物的新陈代谢
背景情况:
- 化物:铁素氧化降解酶 (AORs) 是一种在厌氧和选择性有氧微生物中发现的酶.
- AORs催化铁素 (Fd) 依赖的化物的氧化到碳酸.
- 最近发现的一条AOR-ADH通路涉及AOR在有机酸降解为酒精中的作用.
研究的目的:
- 从生物化学上描述热友细菌Thermoanaerobacter sp. 的AOR. 菌株X514 (AORX514) 的病毒.
- 通过重组生产实现AORX514和类似酶的结构功能分析.
主要方法:
- 来自Thermoanaerobacter sp. 的aor基因 (Teth514_1380) 已经被发现. 菌株X514被引入了Thermoanaerobacter kivui中.
- 再组合的AORX514被净化为同质性.
- 通过对不同温度和pH值的乙甲依赖的铁素降解来评估酶活性.
主要成果:
- 纯化的AORX514显示出强大的酶活性.
- 该酶表现出广泛的基质特异性,接受各种异质,芳香和分支链化物.
- AORX514在广泛的温度 (1095 °C) 和pH (5.511.5) 范围内表现出活性,作为同位素.
结论:
- 在T.T.中成功地进行了AORX514的重组生产. kivui为详细的结构和功能调查提供了一个平台.
- AORX514与古老的AOR有共同的特征,包括同位体活性和广泛的基质范围.
- 这项工作促进了对氧敏感或W/Mo依赖酶的未来研究.
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