Protein-mediated morphological regulation of magnetite crystal in magnetotactic bacteria

A. Arakaki; A. Yamagishi; Tadashi Matsunaga

doi:10.2497/jjspm.61.S99

Protein-mediated morphological regulation of magnetite crystal in magnetotactic bacteria

A. Arakaki, A. Yamagishi, Tadashi Matsunaga

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

MatsunagaMagnetotactic bacteria are microorganisms that produce magnetic particles surrounded by a lipid bilayer membrane with proteins. Since the size and morphology of these particles are uniform, it is thought that magnetic particles are morphologically controlled within the bacteria. The Mms6 protein was isolated from the surface of cubo-octahedral magnetic particles formed in the Magnetospirillum magneticum strain AMB-1. By using Mms6, cubo-octahedral magnetic particles were synthesized in vitro. Furthermore, the analysis of the mms6 gene-deletion mutant of magnetotactic bacteria indicated that Mms6 plays a role in the in vivo regulation of magnetic crystal morphology during crystal growth. Thus, Mms6 can be used to synthesize morphologically controlled magnetic materials under normal temperature and pressure conditions.

Original language	English
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	61
Issue number	SUPLL.1
DOIs	https://doi.org/10.2497/jjspm.61.S99
Publication status	Published - 2014
Externally published	Yes

Keywords

Biomineralization
Magnetic particle
Magnetotactic bacteria
Mms6 protein
Morphological control

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2497/jjspm.61.S99

Cite this

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title = "Protein-mediated morphological regulation of magnetite crystal in magnetotactic bacteria",

abstract = "MatsunagaMagnetotactic bacteria are microorganisms that produce magnetic particles surrounded by a lipid bilayer membrane with proteins. Since the size and morphology of these particles are uniform, it is thought that magnetic particles are morphologically controlled within the bacteria. The Mms6 protein was isolated from the surface of cubo-octahedral magnetic particles formed in the Magnetospirillum magneticum strain AMB-1. By using Mms6, cubo-octahedral magnetic particles were synthesized in vitro. Furthermore, the analysis of the mms6 gene-deletion mutant of magnetotactic bacteria indicated that Mms6 plays a role in the in vivo regulation of magnetic crystal morphology during crystal growth. Thus, Mms6 can be used to synthesize morphologically controlled magnetic materials under normal temperature and pressure conditions.",

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journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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T1 - Protein-mediated morphological regulation of magnetite crystal in magnetotactic bacteria

AU - Arakaki, A.

AU - Yamagishi, A.

AU - Matsunaga, Tadashi

PY - 2014

Y1 - 2014

N2 - MatsunagaMagnetotactic bacteria are microorganisms that produce magnetic particles surrounded by a lipid bilayer membrane with proteins. Since the size and morphology of these particles are uniform, it is thought that magnetic particles are morphologically controlled within the bacteria. The Mms6 protein was isolated from the surface of cubo-octahedral magnetic particles formed in the Magnetospirillum magneticum strain AMB-1. By using Mms6, cubo-octahedral magnetic particles were synthesized in vitro. Furthermore, the analysis of the mms6 gene-deletion mutant of magnetotactic bacteria indicated that Mms6 plays a role in the in vivo regulation of magnetic crystal morphology during crystal growth. Thus, Mms6 can be used to synthesize morphologically controlled magnetic materials under normal temperature and pressure conditions.

AB - MatsunagaMagnetotactic bacteria are microorganisms that produce magnetic particles surrounded by a lipid bilayer membrane with proteins. Since the size and morphology of these particles are uniform, it is thought that magnetic particles are morphologically controlled within the bacteria. The Mms6 protein was isolated from the surface of cubo-octahedral magnetic particles formed in the Magnetospirillum magneticum strain AMB-1. By using Mms6, cubo-octahedral magnetic particles were synthesized in vitro. Furthermore, the analysis of the mms6 gene-deletion mutant of magnetotactic bacteria indicated that Mms6 plays a role in the in vivo regulation of magnetic crystal morphology during crystal growth. Thus, Mms6 can be used to synthesize morphologically controlled magnetic materials under normal temperature and pressure conditions.

KW - Biomineralization

KW - Magnetic particle

KW - Magnetotactic bacteria

KW - Mms6 protein

KW - Morphological control

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Protein-mediated morphological regulation of magnetite crystal in magnetotactic bacteria

Abstract

Keywords

ASJC Scopus subject areas

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