Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.

In this study, the optimized method for designing IgG-binding magnetosomes based on integration of IgG-binding fusion proteins into magnetosome membrane in vitro is presented. Fusion proteins Mbb and Mistbb consisting of magnetosome membrane protein MamC and membrane associating protein Mistic from...

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Autores principales: Denis S Grouzdev, Marina V Dziuba, Denis V Kurek, Alexander I Ovchinnikov, Nadezhda A Zhigalova, Boris B Kuznetsov, Konstantin G Skryabin
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Publicado: Public Library of Science (PLoS) 2014
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spelling oai:doaj.org-article:c4bfaff759a34201af328af66a6017842021-11-25T05:56:26ZOptimized method for preparation of IgG-binding bacterial magnetic nanoparticles.1932-620310.1371/journal.pone.0109914https://doaj.org/article/c4bfaff759a34201af328af66a6017842014-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0109914https://doaj.org/toc/1932-6203In this study, the optimized method for designing IgG-binding magnetosomes based on integration of IgG-binding fusion proteins into magnetosome membrane in vitro is presented. Fusion proteins Mbb and Mistbb consisting of magnetosome membrane protein MamC and membrane associating protein Mistic from Bacillus subtilis as anchors and BB-domains of Staphylococcus aureus protein A as IgG-binding region were used. With Response Surface Methodology (RSM) the highest level of proteins integration into magnetosome membrane was achieved under the following parameters: pH 8.78, without adding NaCl and 55 s of vortexing for Mbb; pH 9.48, 323 mM NaCl and 55 s of vortexing for Mistbb. Modified magnetosomes with Mbb and Mistbb displayed on their surface demonstrated comparable levels of IgG-binding activity, suggesting that both proteins could be efficiently used as anchor molecules. We also demonstrated that such modified magnetosomes are stable in PBS buffer during at least two weeks. IgG-binding magnetosomes obtained by this approach could serve as a multifunctional platform for displaying various types of antibodies.Denis S GrouzdevMarina V DziubaDenis V KurekAlexander I OvchinnikovNadezhda A ZhigalovaBoris B KuznetsovKonstantin G SkryabinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 10, p e109914 (2014)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Denis S Grouzdev
Marina V Dziuba
Denis V Kurek
Alexander I Ovchinnikov
Nadezhda A Zhigalova
Boris B Kuznetsov
Konstantin G Skryabin
Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
description In this study, the optimized method for designing IgG-binding magnetosomes based on integration of IgG-binding fusion proteins into magnetosome membrane in vitro is presented. Fusion proteins Mbb and Mistbb consisting of magnetosome membrane protein MamC and membrane associating protein Mistic from Bacillus subtilis as anchors and BB-domains of Staphylococcus aureus protein A as IgG-binding region were used. With Response Surface Methodology (RSM) the highest level of proteins integration into magnetosome membrane was achieved under the following parameters: pH 8.78, without adding NaCl and 55 s of vortexing for Mbb; pH 9.48, 323 mM NaCl and 55 s of vortexing for Mistbb. Modified magnetosomes with Mbb and Mistbb displayed on their surface demonstrated comparable levels of IgG-binding activity, suggesting that both proteins could be efficiently used as anchor molecules. We also demonstrated that such modified magnetosomes are stable in PBS buffer during at least two weeks. IgG-binding magnetosomes obtained by this approach could serve as a multifunctional platform for displaying various types of antibodies.
format article
author Denis S Grouzdev
Marina V Dziuba
Denis V Kurek
Alexander I Ovchinnikov
Nadezhda A Zhigalova
Boris B Kuznetsov
Konstantin G Skryabin
author_facet Denis S Grouzdev
Marina V Dziuba
Denis V Kurek
Alexander I Ovchinnikov
Nadezhda A Zhigalova
Boris B Kuznetsov
Konstantin G Skryabin
author_sort Denis S Grouzdev
title Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
title_short Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
title_full Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
title_fullStr Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
title_full_unstemmed Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.
title_sort optimized method for preparation of igg-binding bacterial magnetic nanoparticles.
publisher Public Library of Science (PLoS)
publishDate 2014
url https://doaj.org/article/c4bfaff759a34201af328af66a601784
work_keys_str_mv AT denissgrouzdev optimizedmethodforpreparationofiggbindingbacterialmagneticnanoparticles
AT marinavdziuba optimizedmethodforpreparationofiggbindingbacterialmagneticnanoparticles
AT denisvkurek optimizedmethodforpreparationofiggbindingbacterialmagneticnanoparticles
AT alexanderiovchinnikov optimizedmethodforpreparationofiggbindingbacterialmagneticnanoparticles
AT nadezhdaazhigalova optimizedmethodforpreparationofiggbindingbacterialmagneticnanoparticles
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