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적혈구 막에 관한 연구(I) Palmitoyl Carnitine에 의한 소 적혈구 막의 용해
이강순,장정순,조기승,이강석,Rhee, Kang-Soon,Chang, Chung-Soon,Cho, Key-Seung,Lee, Kang-Suk 생화학분자생물학회 1975 한국생화학회지 Vol.8 No.1
소의 적혈구막을 palmitoyl carnitine으로 처리하였을 때 단백질, 인지질 및 cholesterol이 동시에 완전히 용해되었고 palmitoyl carnitine에의 한 지질의 유리 및 micelle의 형성이 없는 것으로 보아 적혈구막은 lipoprotein 형태로 용해됨을 알았다. 소 적혈구막의 용해는 palmitoyl carnitine이 막의 lipoprotein과의 친수성 결합과 소수성 결합을 하므로써 용해되며 용해도는 소수성 결합 정도에의 존한다고 본다. Palmitoyl carnitine에의 한 혈구막 용해에 있어서 ATPase($Na^+$, $K^+$ dependent)와 glucose-6-phosphatase의 활성도는 저해 받지 않았으며 오히려 palmitoyl carnitine의 농도에 따라 각각 28-43%, 56-110%가 증가하였다. 용해된 막단백질에 있어 pH에 따른 용해도의 상태는 pH 5.0에서 92%의 단백질이 침전되었다. 용해된 막단백질을 Tris-glycine buffer, pH 8.3로 polyacrylamide gel electrophoresis를 행하였을 때 분자량이 450,000-70,000인 8개의 band로 분리되었다. The mechanism of solubilization of the ox-erythrocyte membrane was investigated with palmitoyl carnitine. When the membrane was treated with palmitoyl carnitine, the membrane protein, phospholipids and cholesterol were completely solubilized. It was confirmed that lipids were not liberated from membrane lipoprotein and not form micelles with palmitoyl carnitine. As a consequence, membrane was solubilized as a form of lipoprotein. In the present study, the results indicated that the erythrocyte membrane was solubilized by involvement of ionic and hydrophobic interaction of membrane lipoprotein with palmitoyl carnitine. The solubility of erythrocyte membrane depended upon the degree of the hydrophobic binding with palmitoyl carnitine. In the complete solubilized membrane, the activities of ATPase($Na^+$, $K^+$-dependent) and glucose-6-phosphatase were not affected or rather slightly increased of 28% and 56% as compared with intact membrane, respectively. The effect of pH on solubilized membrane protein showed that 92% of protein was precipitated at pH 5.0. In polyacrylamide gel electrophoresis with Tris-glycine buffer, pH 8.3, solubilized membrane protein was separated into 8 bands with molecular weight ranged from 450, 000 to 70, 000.
적혈구 막에 관한 연구 ( 1 ) Palmityoyl Carnitine 에 의한 소 적혈구 막의 용해
이강순,장정순,조기승,이강석 ( Kang Soon Rhee,Chung Soon Chang,Key Seung Cho,Kang Suk Lee ) 생화학분자생물학회 1975 BMB Reports Vol.8 No.1
The mechanism of solubilization of the ox-erythrocyte membrane was investigated with palmitoyl carnitine. When the membrane was treated with palmitoyl carnitine, the membrane protein, phospholipids and cholesterol were completely solubilized. It was confirmed that lipids were not liberated from membrane lipoprotein and not form micelles with palmitoyl carnitine. As a consequence, membrane was solubilized as a form of lipoprotein. In the present study, the results indicated that the erythrocyte membrane was solubilized by involvement of ionic and hydrophobic interaction of membrane lipoprotein with palmitoyl carnitine. The solubility of erythrocyte membrane depended upon the degree of the hydrophobic binding with palmitoyl carnitine. In the complete solubilized membrane, the activities of ATPase (Na^+, K^+-dependent) and glucose-6-phosphatase were not affected or rather slightly increased of 28% and 56% as compared with intact membrane, respectively. The effect of pH on solubilized membrane protein showed that 92% of protein was precipitated at pH 5.0. In polyacrylamide gel electrophoresis with Tris-glycine buffer, pH 8.3, solubilized membrane protein was separated into 8 bands with molecular weight ranged from 450,000 to 70,000.
인프라 구조물 안전관리 분야의 클라우드 기반 빅데이터 해외 사례와 국내 적용성 고찰
이강문 ( Lee Kang Moon ),남동우 ( Nam Dong Woo ),이정훈 ( Rhee Jeong Hoon ),문대중 ( Moon Dae Jung ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
Many of the structures constructed since the 1970s have begun to deteriorate. As a result, safety inspection / diagnosis and maintenance are expected to increase further, and long-term and systematic measures are urgently needed to prepare for the aging of major infrastructures. Currently, the safety inspection and maintenance of the structure is carried out by the method based on the utilization of the measurement data and the manager's experience, but the reliability and the accuracy are still insufficient. In other words, there is a limit to understanding the state change of bridges, such as abnormal behavior and gradual damages, therefore, it is necessary to have an accurate and reliable monitoring process using new techniques and systems. For this reason, I would like to examine the possibility of using cloud and big data in the field of infrastructure safety management.