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- 저자 : Protzman, R.A. (검색결과 1 건)
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Kim, D.,Lee, H.M.,Oh, K.S.,Ki, A.Y.,Protzman, R.A.,Kim, D.,Choi, J.S.,Kim, M.J.,Kim, S.H.,Vaidya, B.,Lee, S.J.,Kwon, J. IPC Science and Technology Press 2017 Biomaterials Vol.128 No.-
Rapid methods for the detection and clinical treatment of human norovirus (HuNoV) are needed to control foodborne disease outbreaks, but reliable techniques that are fast and sensitive enough to detect small amounts of HuNoV in food and aquatic environments are not yet available. We explore the interactions between HuNoV and concanavalin A (Con A), which could facilitate the development of a sensitive detection tool for HuNoV. Biophysical studies including hydrogen/deuterium exchange (HDX) mass spectrometry and surface plasmon resonance (SPR) revealed that when the metal coordinated region of Con A, which spans Asp16 to His24, is converted to nine alanine residues (mCon A<SUP>MCR</SUP>), the affinity for HuNoV (GII.4) diminishes, demonstrating that this Ca<SUP>2+</SUP> and Mn<SUP>2+</SUP> coordinated region is responsible for the observed virus-protein interaction. The mutated carbohydrate binding region of Con A (mCon A<SUP>CBR</SUP>) does not affect binding affinity significantly, indicating that MCR of Con A is a major region of interaction to HuNoV (GII.4). The results further contribute to the development of a HuNoV concentration tool, Con A-immobilized polyacrylate beads (Con A-PAB), for rapid detection of genotypes from genogroups I and II (GI and GII). This method offers many advantages over currently available methods, including a short concentration time. HuNov (GI and GII) can be detected in just 15 min with 90% recovery through Con A-PAB application. In addition, this method can be used over a wide range of pH values (pH 3.0 - 10.0). Overall, this rapid and sensitive detection of HuNoV (GI and GII) will aid in the prevention of virus transmission pathways, and the method developed here may have applicability for other foodborne viral infections.
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