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Mino Kang,Su Yeon Kim,안성수,Young Ran JU3 생화학분자생물학회 2013 Experimental and molecular medicine Vol.45 No.8
Cellular prion protein, a membrane protein, is expressed in all mammals. Prion protein is also found in human blood as an anchorless protein, and this protein form is one of the many potential sources of misfolded prion protein replication during transmission. Many studies have suggested that b-amyloid1–42 oligomer causes neurotoxicity associated with Alzheimer’s disease, which is mediated by the prion protein that acts as a receptor and regulates the hippocampal potentiation. The prevention of the binding of these proteins has been proposed as a possible preventative treatment for Alzheimer’s disease;therefore, a greater understanding of the binding hot-spots between the two molecules is necessary. In this study, the epitope mapping immunoassay was employed to characterize binding epitopes within the prion protein and complementary epitopes in b-amyloid. Residues 23–39 and 93–119 in the prion protein were involved in binding to b-amyloid1–40 and 1–42, and monomers of this protein interacted with prion protein residues 93–113 and 123–166. Furthermore, b-amyloid antibodies against the C-terminus detected bound b-amyloid1–42 at residues 23–40, 104–122 and 159–175. b-Amyloid epitopes necessary for the interaction with prion protein were not determined. In conclusion, charged clusters and hydrophobic regions of the prion protein were involved in binding to b-amyloid1–40 and 1–42. The 3D structure appears to be necessary for b-amyloid to interact with prion protein. In the future, these binding sites may be utilized for 3D structure modeling, as well as for the pharmaceutical intervention of Alzheimer’s disease.
Mino Yang,Sangyoub Lee,Kim Yung Sik,Kook Joe Shin Korean Chemical Society 1989 Bulletin of the Korean Chemical Society Vol.10 No.6
A general perturbation series solution of the Smoluchowski equation is applied to investigate the rate of recombination and the remaining probability of a pair of particles in liquids. The radiative boundary condition is employed and the convergence of the perturbation series is analyzed in terms of a convergene factor in time domain. The upper bound to the error introduced by the n-th order perturbation scheme is also evaluated. The long time behaviors of the rate of recombination and the remaining probability are found to be expressed in closed forms if the perturbation series is convergent. A new and efficient method of purely numerical integration of the Smoluchowski equation is proposed and its results are compared with those obtained by the perturbation method. For the two cases where the interaction between the particles is given by (i) the Coulomb potential and (ii) the shielded Coulomb potential, the agreement between the two results is found to be excellent.
Effects of Light Intensity on the Steady-State Fluorescence Quenching Kinetics
Mino Yang,Sangyoub Lee,Kook Joe Shin,Kwang Yul Choo,Duckhwan Lee Korean Chemical Society 1991 Bulletin of the Korean Chemical Society Vol.12 No.4
Effects of light intensity on the steady-state fluorescence quenching kinetics are examined for general cases where the bimolecular quenching can occur via long-range energy transfer processes and the potential of mean force between the energy donor and acceptor molecules is not negligible. Approximate analytic expressions are derived for the steady-state quenching rate constant and for the ratio of the steady-state intensity of unquenched to quenched fluorescence. The analytic results are compared with the exact results obtained from numerical analysis and the results of conventional theories.
A Nonlinear Theory for the Lotka-Volterra Model with an External lnput
Mino Yang,Sangyoub Lee,Seong Keun Kim,Kook Joe Shin,Moon Hee Ryu,Song Hi Lee,Dong J. Lee Korean Chemical Society 1992 Bulletin of the Korean Chemical Society Vol.13 No.5
A new perturbation theory called the star expansion method is used to obtain an approximate nonlinear solution of the Lotka-Volterra model under the influence of some kinds of external input. The effects of nonlinearity, amplitude and frequency of the external input on the chemical oscillations in the model are evaluated by taking specific values for the model parameters, and the results are discussed in detail.
Memory Equations for Kinetics of Diffusion-Influenced Reactions
Yang, Mino Korean Chemical Society 2006 Bulletin of the Korean Chemical Society Vol.27 No.10
A many-body master equation is constructed by incorporating stochastic terms responsible for chemical reactions into the many-body Smoluchowski equation. Two forms of Langevin-type of memory equations describing the time evolution of dynamical variables under the influence of time-independent perturbation with an arbitrary intensity are derived. One form is convenient in obtaining the dynamics approaching the steady-state attained by the perturbation and the other in describing the fluctuation dynamics at the steady-state and consequently in obtaining the linear response of the system at the steady-state to time-dependent perturbation. In both cases, the kinetics of statistical averages of variables is found to be obtained by analyzing the dynamics of time-correlation functions of the variables.
구민오(Mino Ku),민덕기(Dugki Min) 한국정보과학회 2009 한국정보과학회 학술발표논문집 Vol.36 No.2B
분산 처리 클러스터링은 하드웨어적, 소프트웨어적 방식으로 대용량 데이터 처리 및 대규모 계산 수행을 위해 광범위하게 사용되어온 기술이다. 대용량 데이터 처리 및 대규모 처리를 위한 처리 클러스터 프레임워크는 기업용 제품에서 부터 Google의 GFS, Apache Group의 Hadoop과 같은 공개 형태까지 다양하게 발전을 해왔으며, 클라우드 컴퓨팅에 대한 기술적, 연구적 수요로 인해 앞으로도 더욱더 발전할 것이다. 그러나 지금까지의 분산 처리를 위한 클러스터 시스템 구축은 전문적인 작업을 요구하며 이에 대한 시간적, 비용적 소모가 많기 때문에 전문적인 영역으로 되어왔다. 본 논문에서는 서버 컨넥션풀을 이용한 경량의 낮은 통신 부하를 고려한 분산 처리 클러스터 프레임워크의 설계 및 구현을 통해 위와 같은 문제를 해결하고자 한다. 또한 분산 처리 클러스터 프레임워크를 기반으로 한 개발 방법을 소개하며 이를 기반으로 하는 활용 방법을 제공한다. 또한, 본 논문에서 제시한 분산 처리 클러스터 프레임워크에 대한 다양한 성능 평가 실험을 실시하였다.