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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study screened the biological activity of an acidified gill extract of the Manila clam Ruditapes philippinarum in-cluding antimicrobial, hemolytic, membrane permeabilization, and DNA-binding activity, and purified the antimicro-bial material. The acidified gill extract showed potent antimicrobial activity against Bacillus subtilis and Escherichia coli without significant hemolytic activity, but showed no membrane permeabilization or DNA-binding ability. An antimicrobial material was purified from the acidified gill extract using C18 reversed-phase and cation-exchange high-performance liquid chromatography (HPLC). Treatment of the purified material with trypsin completely abolished all of the antibacterial activity against Bacillus subtilis, suggesting that the purified material is a proteinaceous antibiotic. The molecular weight of the purified material was 2571.9 Da, but no primary structural information was obtained due to N-terminal blocking. A future study should confirm the primary structure. Our results suggest that the Manila clam gill contains proteinaceous antibiotics that have a role in first-line defense. This information could be used to better understand the Manila clam innate immune system.
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Identification of the geographical origins of Manila clam (Ruditapes philippinarum) by Multi-element stable Isotope Analysis
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2015 .10
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Seedling of natural spats of Manila clam, Ruditapes philippinarum and their intermediate culturing using a pond culture system
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