Purification and characterization of the gonad lectin of Aplysia depilans

Nechama Gilboa-Garber, Abraham J. Susswein, Lea Mizrahi, Dody Avichezer

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Extracts of gonads and fertilized eggs of Aplysia depilans contain a D-galacturonic and D-galactose-binding lectin. This lectin reacts strongly with rabbit and human erythrocytes independent of ABO blood groups, weakly with dog, mouse, rat, and chick erythrocytes and not at all or very weakly with sheep erythrocytes. Purification of the gonad lectin was easily achieved, with a high yield, by heating to 70°C, precipitation with ammonium sulfate and affinity chromatography on Sepharose 4B. The purified lectin was found to be a glucoprotein of molecular mass around 55-60 kDa; it stimulates mitogenesis of human peripheral lymphocytes.

Original languageEnglish
Pages (from-to)267-270
Number of pages4
JournalFEBS Letters
Issue number2
StatePublished - 25 Feb 1985


  • Aplysia
  • Gonad lectin
  • Lectin purification
  • Mitogenic lectin


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