Article
Molecular architecture and evolution of a modular spider silk protein gene.
Science (New York, N.Y.) - 25 Feb 2000
Hayashi C Y, Lewis R V
Abstract excerpt
Spider flagelliform silk is one of the most elastic natural materials known. Extensive sequencing of spider silk genes has shown that the exons and introns of the flagelliform gene underwent intragenic concerted evolution. The intron sequences are more homogenized within a species than are the exons. This pattern can be explained by extreme mutation and recombination pressures on the internally repetitive exons....
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