인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 저자정보
초록·키워드
In order to elucidate the reaction path of the heat-induced aggregation of bovine β-lactoglobulin B (β-Lg) at constant temperature, samples of a β-Lg solution were heated in a phosphate buffer at 77°C for 0 to 10 min and then frozen. The mobility and intensity of the protein species in the β-Lg products were analysed using alkaline (native)-polyacrylamide gel electrophoresis (PAGE), sodium dodecyl sulfate (SDS)-PAGE, and near-UV circular dichroism (CD). Heating the β-Lg at 77°C resulted in the disappearance of the native β-Lg band, as well as the formation of protein species with lower electrophoretic mobilities. Aggregates of various sizes were formed, and the amounts of native-like and SDS monomeric β-Lg decreased as heating time increased. The increase and subsequent decrease in the concentration of the non-native β-Lg monomer indicates that this intermediate was probably an essential member of the denaturation and aggregation pathways. The changes in CD at 270 nm, an index of significant alteration to disulfide bond dihedral angles, occurred after more extensive heating. The intensity of deep troughs decreased as heating time increased. These latter results indicate that the initial irreversible stage in the heat-induced aggregation of β-Lg modified the tertiary structure of the protein.
본문·목차
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최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2013-573-001521118