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Science 18 September 1987:
Vol. 237. no. 4821, pp. 1487 - 1490
DOI: 10.1126/science.3498216
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Articles

Science, Vol 237, Issue 4821, 1487-1490
Copyright © 1987 by American Association for the Advancement of Science

articles

A sea urchin gene encodes a polypeptide homologous to epidermal growth factor

DA Hursh, ME Andrews, and RA Raff

A sea urchin DNA clone complementary to an embryonic messenger RNA whose protein product bears striking homology to the epidermal growth factor family of proteins has been identified and characterized. The structure of the protein is similar to that of previously identified regulatory genes in Drosophila and Caenorhabditis. RNA gel blot hybridization showed a unique temporal pattern of expression of this gene during embryogenesis and transcript enrichment in the embryonic ectoderm. These results suggest that this member of the epidermal growth factor gene family plays a role in early development decisions in sea urchin embryos.


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