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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b02849
|2 doi
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|a pubmed24n0842.xml
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|a (NLM)26354323
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Tharad, Sudarat
|e verfasserin
|4 aut
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|a Effect of the Concentration of Cytolytic Protein Cyt2Aa2 on the Binding Mechanism on Lipid Bilayers Studied by QCM-D and AFM
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 27.06.2016
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|a Date Revised 29.09.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Bacillus thuringiensis is known by its insecticidal property. The insecticidal proteins are produced at different growth stages, including the cytolytic protein (Cyt2Aa2), which is a bioinsecticide and an antimicrobial protein. However, the binding mechanism (and the interaction) of Cyt2Aa2 on lipid bilayers is still unclear. In this work, we have used quartz crystal microbalance with dissipation (QCM-D) and atomic force microscopy (AFM) to investigate the interaction between Cyt2Aa2 protein and (cholesterol-)lipid bilayers. We have found that the binding mechanism is concentration dependent. While at 10 μg/mL, Cyt2Aa2 binds slowly on the lipid bilayer forming a compliance protein/lipid layer with aggregates, at higher protein concentrations (100 μg/mL), the binding is fast, and the protein/lipid layer is more rigid including holes (of about a lipid bilayer thickness) in its structure. Our study suggests that the protein/lipid bilayer binding mechanism seems to be carpet-like at low protein concentrations and pore forming-like at high protein concentrations
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Bacterial Proteins
|2 NLM
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|a Lipid Bilayers
|2 NLM
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|a Iturri, Jagoba
|e verfasserin
|4 aut
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|a Moreno-Cencerrado, Alberto
|e verfasserin
|4 aut
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|a Mittendorfer, Margareta
|e verfasserin
|4 aut
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|a Promdonkoy, Boonhiang
|e verfasserin
|4 aut
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|a Krittanai, Chartchai
|e verfasserin
|4 aut
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|a Toca-Herrera, José L
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 31(2015), 38 vom: 29. Sept., Seite 10477-83
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:31
|g year:2015
|g number:38
|g day:29
|g month:09
|g pages:10477-83
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|u http://dx.doi.org/10.1021/acs.langmuir.5b02849
|3 Volltext
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