The organic matrix of coleoid cephalopod shells: molecular weights and isoelectric properties of the soluble matrix in relation to biomineralization processes

  title={The organic matrix of coleoid cephalopod shells: molecular weights and isoelectric properties of the soluble matrix in relation to biomineralization processes},
  author={Yannicke Dauphin},
  journal={Marine Biology},
  • Y. Dauphin
  • Published 1 May 1996
  • Biology
  • Marine Biology
Soluble matrices of coleoid cephalopod shells, namely the organic pen of Loligo sp. and mincralized calcified shells of Spirula spirula and Sepia sp., were extracted and studied by HPLC (high-performance liquid chromatography) gel filtration and isoelectrofocusing (IEF). Molecular weights of Spirula spirula and Sepia sp. extracts are not well separated, whereas Loligo sp. shows several well-defined peaks. In Loligo sp. and Sepia sp., molecular weights of > 100 kdaltons were found. Spirula… 

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