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Possible release of an ArgGlyArgProGln pentapeptide with innate immunity properties from acidic proline-rich proteins by proteolytic activity in commensal streptococcus and actinomyces species.
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2000 (English)In: Infection and Immunity, ISSN 0019-9567, Vol. 68, no 9, 5425-9 p.Article in journal (Refereed) Published
Abstract [en]

This study suggests degradation of salivary acidic proline-rich proteins (PRPs) into potential innate-immunity-like peptides by oral Streptococcus and Actinomyces species. PRP degradation paralleled cleavage of Pro-containing substrates. PRP degradation by S. gordonii strain SK12 instantly released a Pyr(1)-Pro(104)Pro(105) and a Gly(111)-Pro(149)Gln(150) peptide together with a presumed Arg(106)Gly(107)Arg(108)Pro(109)Gln(110) pentapeptide. The synthetic Arg(106)Gly(107)Arg(108)Pro(109)Gln(110) peptide desorbed bound bacteria and counteracted sucrose-induced decrease of dental plaque pH in vitro.

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2000. Vol. 68, no 9, 5425-9 p.
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URN: urn:nbn:se:umu:diva-8889PubMedID: 10948176OAI: oai:DiVA.org:umu-8889DiVA: diva2:148560
Available from: 2008-02-19 Created: 2008-02-19 Last updated: 2009-08-07Bibliographically approved

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Johansson, IngegerdStrömberg, Nicklas

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