Bovine heart valve collagen has a unique amino acid profile characterized by significantly high amounts of hydroxylysine compared to collagen from other sources.
Distinct hydroxylysine content in bovine valve collagen warrants caution extrapolating from other tissues; leaves open functional implications for valve disease.
Insoluble and citrate-soluble collagen from bovine heart valves were purified and analyzed for their amino acid composition. The data showed that the distribution of amino acids in this collagen is characteristic and identical to that from other sources except that hydroxylysine is present in significantly high amounts.
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Bashey et al. (1972) studied this question.
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