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논문 기본 정보

자료유형
학술저널
저자정보
Kwak So-Hyung (Department of Agricultural Biotechnology College of Agriculture and Life Sciences Seoul National University Seoul 08826 Republic of Korea) Kim Hayeong (The Institute of Food Industrialization Institutes of Green Bio Science and Technology Seoul National University Pyeongchang-gun Gangwon-do 25354 Republic of Korea) Yun Hyeli (Graduate School of International Agricultural Technology Seoul National University Pyeongchang-gun Gangwon-do 25354 Republic of Korea) Lim Juho (Graduate School of International Agricultural Technology Seoul National University Pyeongchang-gun Gangwon-do 25354 Republic of Korea) Kang Dong-Hyun (Department of Agricultural Biotechnology College of Agriculture and Life Sciences Seoul National University Seoul 08826 Republic of KoreaDepartment of Food and Animal Biotechnology Department of Agric) Kim Doman (The Institute of Food Industrialization Institutes of Green Bio Science and Technology Seoul National University Pyeongchang-gun Gangwon-do 25354 Republic of KoreaGraduate School of International Agri)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제33권 제6호
발행연도
2023.6
수록면
788 - 796 (9page)
DOI
10.4014/jmb.2211.11040

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Canine parvovirus type 2 (CPV-2) has high morbidity and mortality rates in canines. Nonstructural protein 1 (NS1) of CPV-2 has endonuclease activity, initiates viral DNA replication, and is highly conserved. Thus, it is a promising target for antiviral inhibitor development. We overexpressed a 41.9 kDa active recombinant endonuclease in Escherichia coli and designed a nicking assay using carboxyfluorescein and quencher-linked ssDNA as substrates. The optimal temperature and pH of the endonuclease were 37°C and pH 7, respectively. Curcumin, bisdemethoxycurcumin, demethoxycurcumin, linoleic acid, tannic acid, and α-tocopherol inhibited CPV-2 NS1 endonuclease with IC50 values of 0.29 to 8.03 μM. The extracted turmeric, yerba mate, and sesame cake suppressed CPV-2 NS1 endonuclease with IC50 values of 1.48, 7.09, and 52.67 μg/ml, respectively. The binding affinity between curcumin, the strongest inhibitor, and CPV-2 NS1 endonuclease by molecular docking was −6.4 kcal/mol. Curcumin inhibited CPV-2 NS1 endonuclease via numerous hydrophobic interactions and two hydrogen bonds with Lys97 and Pro111 in the allosteric site. These results suggest that adding curcuminoids, linoleic acid, tannic acid, α-tocopherol, extracted turmeric, sesame cake, and yerba to the diet could prevent CPV-2 infection.

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