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  • Title: Amelogenins. Sequence homologies in enamel-matrix proteins from three mammalian species.
    Author: Fincham AG, Belcourt AB, Termine JD, Butler WT, Cothran WC.
    Journal: Biochem J; 1983 Apr 01; 211(1):149-54. PubMed ID: 6870818.
    Abstract:
    Partial amino acid sequences for selected amelogenin polypeptides isolated from the developing enamel of cow, pig and human foetuses are reported. It was found that there was an identity of sequence for the initial 28 residues of the polypeptides analysed, irrespective of their origin or size. A tyrosine-rich polypeptide was shown to be the N-terminal fragment of the principal higher-molecular-weight amelogenins, although a leucine-rich polypeptide of similar size was not identified in any other amelogenin structure. The findings demonstrate a striking degree of sequence conservation for the amelogenin proteins of the extracellular enamel matrix and support the concept of a discrete fragmentation of an initial 30 000 Da amelogenin molecule during the mineralization of the enamel.
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