Purification and characterization of the clotting protein from the white shrimp Penaeus vannamei

Karla Montaño-Pérez, Gloria Yepiz-Plascencia, Inocencio Higuera-Ciapara, Francisco Vargas-Albores

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41 Scopus citations

Abstract

The protein responsible for clot formation was isolated from plasma of the white shrimp Penaeus vannamei by affinity chromatography in a heparin-agarose column. The protein, named clotting protein (CP), was found to be a lipoglycoprotein, composed of two 210-kDa subunits covalently bound by disulfide bridges. CP formed large polymers when incubated with hemocyte lysate. Dansylcadaverine can be incorporated into CP by a hemocyte lysate or guinea pig transglutaminase mediated reaction. The amino acid composition and the amino terminal sequence were determined and compared with the clotting protein of the crayfish and the spiny lobster. Copyright (C) 1999 Elsevier Science Inc.

Original languageEnglish
Pages (from-to)381-387
Number of pages7
JournalComparative Biochemistry and Physiology - B Biochemistry and Molecular Biology
Volume122
Issue number4
DOIs
StatePublished - 1 Jan 1999
Externally publishedYes

Keywords

  • Clotting protein
  • Coagulogen
  • Crustacea
  • Defense system
  • Hemocyte lysate
  • Invertebrate coagulation
  • Shrimp immunity
  • Transglutaminase

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