Abstract

1. 1.The interaction of collagen fibrils and the interfibrillar matrix of tendon has been studied. 2. 2.Treatment of tendon with chelating agents at pH 7.5 results in the subsequent dispersion of collagen fibrils in dilute acetic acid. 3. 3.The dispersed collagen fibrils have an amino acid composition which is almost identical with the best preparations of tendon gelatin, indicating the chemical purity of the collagen. 4. 4.The action of chelating agents can be reversed by equilibration of the treated tendon with calcium acetate prior to acetic acid extraction. 5. 5.The interfibrillar matrix can be isolated in a purified form virtually free of collagen. 6. 6.It is suggested that metal ions play a part in the interaction of collagen fibrils and the interfibrillar matrix in tendon.

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