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棕色固氮菌细菌铁蛋白释放铁的动力学方程和性质
Authors
张凤章
曾定
+6 more
曾润颖
林庆梅
许良树
邱雪慧
黄南昌
黄河清
Publication date
1 January 1998
Publisher
Abstract
棕色固氮菌细菌铁蛋白铁核中的磷铁组成存在非均匀性。细菌铁蛋白释放铁的动力学特性表现出复杂性。通过动力学曲线分析,提出蛋白壳自身调节能力起着限制释放铁速率关键步骤的观点,建立分析铁蛋白释放铁的动力学特性方程并用它较合理地阐明铁蛋白释放铁的动力学规律及储存铁的途径。用分光光度法和动力学方程研究细菌铁蛋白释放铁的全过程,其结果表明该蛋白以一级反应方式释放铁核表层的铁和以零级反应方式释放铁核内层的铁。外加磷酸盐能强烈地抑制释放铁的速率,引起释放铁的反应级数的转化,迫使铁蛋白以一级反应的方式释放铁核中的大多数铁。国家教委回国留学人员基金;福建省自然科学基
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Last time updated on 16/06/2016