Detection of interaction between biomineralising proteins and calcium carbonate microcrystals

The natural composite nacre is characterised by astonishing mechanical properties, although the main constituent is a brittle mineral shaped as tablets interdispersed by organic layers. To mimic the natural formation process which takes place at ambient conditions an understanding of the mechanism r...

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Main Authors: Hanna Rademaker, Malte Launspach
Format: Article
Language:English
Published: Beilstein-Institut 2011-04-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.2.26
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author Hanna Rademaker
Malte Launspach
author_facet Hanna Rademaker
Malte Launspach
author_sort Hanna Rademaker
collection DOAJ
description The natural composite nacre is characterised by astonishing mechanical properties, although the main constituent is a brittle mineral shaped as tablets interdispersed by organic layers. To mimic the natural formation process which takes place at ambient conditions an understanding of the mechanism responsible for a defined microstructure of nacre is necessary. Since proteins are assumed to be involved in this mechanism, it is advantageous to identify distinct proteins interacting with minerals from the totality of proteins contained in nacre. Here, we adopted and modified a recently published approach given by Suzuki et al. that gives a hint of specific protein–mineral interactions. Synthesised aragonite or calcite microcrystals were incubated with a protein mixture extracted from nacre of Haliotis laevigata. After incubation the mineral phase was dissolved and investigated for attached proteins. The results give a hint of one protein that seems to bind specifically to aragonite and not to calcite. The presented protocol seems to be suitable to detect mineral binding proteins quickly and therefore can point to proteins whose mineral binding capabilities should be investigated further.
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spelling doaj.art-d361f5a65e4b44c49cbaa88b81f1486e2022-12-21T18:48:57ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862011-04-012122222710.3762/bjnano.2.262190-4286-2-26Detection of interaction between biomineralising proteins and calcium carbonate microcrystalsHanna Rademaker0Malte Launspach1Institute of Biophysics, University of Bremen, Bremen, GermanyInstitute of Biophysics, University of Bremen, Bremen, GermanyThe natural composite nacre is characterised by astonishing mechanical properties, although the main constituent is a brittle mineral shaped as tablets interdispersed by organic layers. To mimic the natural formation process which takes place at ambient conditions an understanding of the mechanism responsible for a defined microstructure of nacre is necessary. Since proteins are assumed to be involved in this mechanism, it is advantageous to identify distinct proteins interacting with minerals from the totality of proteins contained in nacre. Here, we adopted and modified a recently published approach given by Suzuki et al. that gives a hint of specific protein–mineral interactions. Synthesised aragonite or calcite microcrystals were incubated with a protein mixture extracted from nacre of Haliotis laevigata. After incubation the mineral phase was dissolved and investigated for attached proteins. The results give a hint of one protein that seems to bind specifically to aragonite and not to calcite. The presented protocol seems to be suitable to detect mineral binding proteins quickly and therefore can point to proteins whose mineral binding capabilities should be investigated further.https://doi.org/10.3762/bjnano.2.26biomineralisationbiomineralising proteinsHaliotisnacreprotein–mineral interaction
spellingShingle Hanna Rademaker
Malte Launspach
Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
Beilstein Journal of Nanotechnology
biomineralisation
biomineralising proteins
Haliotis
nacre
protein–mineral interaction
title Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
title_full Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
title_fullStr Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
title_full_unstemmed Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
title_short Detection of interaction between biomineralising proteins and calcium carbonate microcrystals
title_sort detection of interaction between biomineralising proteins and calcium carbonate microcrystals
topic biomineralisation
biomineralising proteins
Haliotis
nacre
protein–mineral interaction
url https://doi.org/10.3762/bjnano.2.26
work_keys_str_mv AT hannarademaker detectionofinteractionbetweenbiomineralisingproteinsandcalciumcarbonatemicrocrystals
AT maltelaunspach detectionofinteractionbetweenbiomineralisingproteinsandcalciumcarbonatemicrocrystals