The silk glands of the spider are attractive models for study since they are discrete organs which have the sole function of the rapid production of single proteins. Evolution in the Arachnidae has been such as to make the greatest use of silk fibroins. The spider catches its food in a silken web, swathes its prey in a silken bag, and wraps its eggs in a silken cocoon. Wherever the spider goes, it lays a silken thread and throughout its life its contact with the outside world is via its silk.
KeywordsGlycine Serine Lysine Radioactive Isotope Arginine
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