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Science 28 August 1964:
Vol. 145. no. 3635, pp. 940 - 942
DOI: 10.1126/science.145.3635.940
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Articles

Calcified Ectodermal Collagens of Shark Tooth Enamel and Teleost Scale

Melvin L. Moss 1, Sheila J. Jones 1, and Karl A. Piez 2

1 Department of Anatomy, College of Physicians and Surgeons, Columbia University, New York
2 Laboratory of Biochemistry, National Institute of Dental Research, Bethesda, Maryland 20014

Amino acid analysis of protein from the enamel of shark teeth and from teleost scales shows the presence of collagens which can be classified chemically as ectodermal. This finding, together with results from a histological examination of the development of these tissues, constitutes strong evidence that both proteins are derived from the ectoderm, like the enamel of higher vertebrates. Since both are calcified, calcification cannot be a specific property of collagens of mesodermal origin alone.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Noncollagenous Nature of the Proteins of Shark Enamel.
P. T. Levine, M. J. Glimcher, J. M. Seyer, J. I. Huddleston, and J. W. Hein (1966)
Science 154, 1192-1194
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Science. ISSN 0036-8075 (print), 1095-9203 (online)