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Echinobase
ECB-ART-52344
Dev Growth Differ 1972 Aug 01;142:207-216. doi: 10.1111/j.1440-169X.1972.00207.x.
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IMMUNOCHEMICAL STUDY ON THE SPECIES SPECIFICITY OF SPERM-BINDING PROTEIN FROM THE SURFACE OF THE SEA URCHIN EGG.

Onitake K , Tsuzuki H , Aketa K .


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Immunological species specificity of sperm-binding protein from eggs of the 4 sea urchin species, Hemicentrotus pulcherrimus, Pseudocentrotus depressus, Anthocidaris crassispina and Temnopleurus toreumaticus, was examined by means of double immuno-diffusion technique in agar. Ca-soluble fraction of sperm-binding protein which is considered to be responsible for initial sperm-egg bonding at fertilization, has species-specific antigenic component. Correlations in antigenic constituents among the 4 species are described.

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