Jump to main content
Jump to site search

Issue 12, 2007
Previous Article Next Article

Asprich mollusk shell protein: in vitro experiments aimed at elucidating function in CaCO3 crystallization

Author affiliations

Abstract

Acidic proteins are key components of the organic matrix of many biologically formed minerals and are therefore thought to play an important role in their formation. Here we study the effect of one unusually acidic protein of the Asprich family, associated with mollusk shell prismatic layer, on the precipitation of CaCO3in vitro. We show that Asprich induces and transiently stabilizes the deposition of amorphous calcium carbonate (ACC). Asprich also induces the formation of ACC when adsorbed onto chitin, a major component of the intracrystalline organic matrix of the prismatic layer. Based on this evidence, combined with previous studies on the forming prisms in the shell layer, we suggest that the in vivo function of Asprich is inducing and stabilizing ACC particles and inhibiting their uncontrolled crystallization until they undergo secondary nucleation on the growing prisms.

Graphical abstract: Asprich mollusk shell protein: in vitro experiments aimed at elucidating function in CaCO3 crystallization

Back to tab navigation

Publication details

The article was received on 27 Jun 2007, accepted on 11 Sep 2007 and first published on 17 Sep 2007


Article type: Paper
DOI: 10.1039/B709749B
Citation: CrystEngComm, 2007,9, 1171-1177
  •   Request permissions

    Asprich mollusk shell protein: in vitro experiments aimed at elucidating function in CaCO3 crystallization

    Y. Politi, J. Mahamid, H. Goldberg, S. Weiner and L. Addadi, CrystEngComm, 2007, 9, 1171
    DOI: 10.1039/B709749B

Search articles by author

Spotlight

Advertisements