To confirm the migration of proteins from the albumen gland to the egg of the land snail,
Euhadra, the soluble proteins extracted from albumen glands and eggs of
E. peliomphala, E. subnimbosa and
E. quaesita were analyzed immunochemically.
The major polypeptide groups (named No. 8 and 9 polypeptide groups on the polypeptide map) of soluble proteins extracted from the albumen gland of
E. peliomphala were purified and used to immunize rabbits. The specific antibodies against the albumen gland proteins (anti-AG) were purified from the antiserum. The soluble proteins extracted from the albumen glands and the eggs of
E. peliomphala, E. subnimbosa and
E. quaesita were analyzed by O'Farrell's two-dimensional gel electrophoresis and Western blotting method with anti-AG. The anti-AG reacted not only with the two polypeptide groups, which were the same as the immunogens used, but also with another polypeptide group (named No. 14 polypeptide group on the polypeptide map) of all the samples tested. These results support strongly the migration of these polypeptide groups from the albumen gland to egg in
Euhadra.
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