On self-organized shell formation by bovine carbonic anhydrase II, and soluble protein extracted from regenerated shell

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The soluble protein of hemocytes from diseased shell (HDS) of oyster, Crassostrea gigas, was shown to play a key role in the rapid growth of calcium carbonate crystals. In this study, we compared HDS extracted from regenerated (or diseased) shell with bovine carbonic anhydrase II in terms of their ability to promote the growth of calcium carbonate crystals. On the basis of scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) analysis, a high growth rate of calcium carbonate crystals was identified under artificial seawater and atmospheric temperature. The function and role of HDS extracted from regenerated shell are discussed at the molecular point as compared to aragonite-specific soluble proteins. Our findings suggest that hemocytes function as a soluble protein, with repeated GX (G: Gly, X: Asp, Asn or Glu) or negative charged amino acid domains binding calcium and specific surface features for catalyzing rapid shell regeneration. (C) 2008 Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2008-12
Language
English
Article Type
Review
Keywords

OYSTER SHELL; BIOMINERALIZATION; CRYSTALLIZATION; MONOLAYERS; CALCITE; EMBRYOS; GROWTH; LARVAE

Citation

MICRON, v.39, no.8, pp.1228 - 1234

ISSN
0968-4328
DOI
10.1016/j.micron.2008.04.005
URI
http://hdl.handle.net/10203/9655
Appears in Collection
CBE-Journal Papers(저널논문)
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