Noncollagenous Nature of the Proteins of Shark Enamel

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Science  02 Dec 1966:
Vol. 154, Issue 3753, pp. 1192-1194
DOI: 10.1126/science.154.3753.1192


The proteins, soluble and insoluble at neutral pH, of relatively mature enamel of two different species of sharks were distinctly different from both collagen and embryonic enamel proteins and similar to the proteins isolated from mature human and bovine enamel.