NMR studies of the interactions between AMB-1 Mms6 protein and magnetosome Fe3O4 nanoparticles
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Synthesis of Functionalized Magnetic Nanoparticles, Their Conjugation with the Siderophore Feroxamine and its Evaluation for Bacteria Detection
Published on: June 16, 2020
Kun Ma1, Hongxin Zhao, Xinwei Zheng
1High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, Anhui, P. R. China. junfeng@hmfl.ac.cn daihan@hmfl.ac.cn.
Abstract:
Mms6 protein from magnetotactic bacteria strain AMB-1 is responsible for controlling the formation of magnetite nanoparticles both in vitro and in vivo. High-resolution NMR studies showed the C-terminal DEEVE motif and the following residues undergoing conformation change upon magnetosome Fe3O4 crystal binding. The N-terminal hydrophobic packing of Mms6 protein is important for arranging the DEEVE motifs into a correct assembly and orientation that are crucial for magnetite crystal recognition.
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