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Arch Oral Biol. 1987;32(7):473-6.

Proteolytic activities in the supragingival plaque of monkeys (Macaca fascicularis).

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  • 1Royal College of Surgeons, Dental Research Unit, Downe, Kent, England, U.K.


Thirteen peptidase substrates were hydrolysed by this plaque. After fasting the monkeys for 24 h, the rates of hydrolysis of N-leucyl-, N-alanyl-, N-isoleucyl- and N-tyrosyl-2-naphthylamines, glycyl-L-proline 4-nitroanilide, N alpha-benzoyl-DL-arginine-2-naphthylamine and L-leucyglycine were significantly increased. Changes in these peptidase activities may serve to enhance the mobilization of amino acids and peptides, and they may explain why the growth rates of dental-plaque bacteria in vivo are generally unaffected by the availability of the host's diet.

[PubMed - indexed for MEDLINE]
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