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Nacre Evolution : A Proteomic Approach

Published online by Cambridge University Press:  31 January 2011

Benjamin Marie ,
Nathalie Le Roy ,
Arul Marie ,
Lionel Dubost ,
Christian Milet ,
Laurent Bedouet ,
Michel Becchi ,
Isabelle Zanella-Cléon ,
Daniel Jackson  and
Bernard Degnan
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Benjamin Marie
Affiliation:
[email protected], University of Burgundy, UMR CNRS 5561 Biogeosciences, Dijon, France
Nathalie Le Roy
Affiliation:
[email protected], University of Burgundy, UMR CNRS 5561 Biogeosciences, Dijon, France
Arul Marie
Affiliation:
[email protected], MNHN, Plateforme de spectrometrie de masse, Paris, France
Lionel Dubost
Affiliation:
[email protected], MNHN, Plateforme de spectrometrie de masse, Paris, France
Christian Milet
Affiliation:
[email protected], MNHN, UMR CNRS 5178 BOME, Paris, France
Laurent Bedouet
Affiliation:
[email protected], MNHN, UMR CNRS 5178 BOME, Paris, France
Michel Becchi
Affiliation:
[email protected], IBCP, UMR CNRS 5086, Lyon, France
Isabelle Zanella-Cléon
Affiliation:
[email protected], IBCP, UMR CNRS 5086, Lyon, France
Daniel Jackson
Affiliation:
[email protected], University of Queensland, School of integrative biology, Queensland, Australia
Bernard Degnan
Affiliation:
[email protected], University of Queensland, School of integrative biology, Queensland, Australia
Gilles Luquet
Affiliation:
[email protected], University of Burgundy, UMR CNRS 5561 Biogeosciences, Dijon, France
Frederic Marin
Affiliation:
[email protected], University of Burgundy, UMR CNRS 5561 Biogeosciences, Dijon, France
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Abstract

From an evolutionary viewpoint, the molluscan nacre constitutes a fascinating object. This microstructure appeared early, in the Lower Cambrian period, about 530 million years ago, and since then, has been kept unchanged until today. Nacre is restricted to the conchiferan mollusks, where it occurs in t least three main classes, bivalves, gastropods and cephalopods. The aim of the present study is to investigate whether all nacres are built from the same “macromolecular tools”, proteins of the nacre matrix. To this end, we studied three new nacre models, the freshwater bivalve Unio pictorum, the cephalopod Nautilus macromphalus, and the gastropod Haliotis asinina, to which we applied a combined biochemical and proteomic characterization of their respective nacre matrices. The results of our approach, that can be defined as “shellomics” (proteomics applied to shell proteins) shed a new light on the macroevolution of nacre matrix proteins and on the in vitro design of nacre-like biomaterials.

Keywords

biologicalmicrostructuremacromolecular structure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1187: Symposium KK – Structure-Property Relationships in Biomineralized and Biomimetic Composites , 2009 , 1187-KK01-03
Copyright
Copyright © Materials Research Society 2009

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