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The intrinsically disordered C-RING biomineralization protein, AP7, creates protein phases that introduce nanopatterning and nanoporosities to mineral crystals

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JournalBiochemistry
DateE-pub ahead of print - 30 Jun 2014
DatePublished (current) - 15 Jul 2014
Issue number27
Volume53
Number of pages3
Pages (from-to)4317-4319
Early online date30/06/14
Original languageEnglish

Abstract

We report an interesting process whereby the formation of nanoparticle assemblies on and nanoporosities within calcite crystals are directed by an intrinsically disordered C-RING mollusk shell nacre protein, AP7. Under mineralization conditions AP7 forms protein phases that direct the nucleation of ordered calcite nanoparticles via a repetitive protein phase deposition process onto calcite crystals. These organized nanoparticles are separated by gaps or spaces that become incorporated into the forming bulk crystal as nanoporosities. This is an unusual example of organized nanoparticle biosynthesis and mineral modification directed by a C-RING protein phase.

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