• Title/Summary/Keyword: Double Helix

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A Balanced and Unbalanced Analysis of the DNA Matrix Code of The Taegeuk Pattern (태극 패턴 DNA 행렬 코드의 평형과 불평형 해석)

  • Kim, Jeong Su;Lee, Moon Ho
    • Journal of Engineering Education Research
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    • v.21 no.1
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    • pp.77-89
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    • 2018
  • The chromosomes of all the world are the same in all 24 pairs, but the key, skin color and appearance are different. Also, it is the resistance of adult disease, diabetes, cancer. In 1953, Watson, Crick of Cambridge University experimentally discovered a DNA double helix structure, and in 1962, They laureates the Nobel Prize. In 1964, Temin, University of Wisconsin, USA, experimentally identified the ability to copy gene information from RNA to DNA and received the Nobel Prize in 1975. In this paper, we analyzed 24 pairs of DNA chromosomes using mathematical matrices based on the combination order sequence of four groups, and designed the Taegeuk pattern genetic code for the first time in the world. In the case of normal persons, the middle Yin-Yang taegeuk is designed as a block circulant Jacket matrix in DNA, and the left-right and upper-lower pairs of east-west and north-south rulings are designed as pair complementary matrices. If (C U: A G) chromosomes are unbalanced, that is, people with disease or inheritance become squashed squirming patterns. In 2017, Professor Michel Young was awarded a Nobel by presenting a biological clock and experimentally explained the bio-imbalance through a yellow fruit fly experiment.This study proved mathematical matrices for balanced and unbalanced RNA.

Structural and Functional Insight into Proliferating Cell Nuclear Antigen

  • Park, So Young;Jeong, Mi Suk;Han, Chang Woo;Yu, Hak Sun;Jang, Se Bok
    • Journal of Microbiology and Biotechnology
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    • v.26 no.4
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    • pp.637-647
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    • 2016
  • Proliferating cell nuclear antigen (PCNA) is a critical eukaryotic replication accessory factor that supports DNA binding in DNA processing, such as DNA replication, repair, and recombination. PCNA consists of three toroidal-shaped monomers that encircle double-stranded DNA. The diverse functions of PCNA may be regulated by its interactions with partner proteins. Many of the PCNA partner proteins generally have a conserved PCNA-interacting peptide (PIP) motif, located at the N- or C- terminal region. The PIP motif forms a 310 helix that enters into the hydrophobic groove produced by an interdomain-connecting loop, a central loop, and a C-terminal tail in the PCNA. Post-translational modification of PCNA also plays a critical role in regulation of its function and binding partner proteins. Structural and biochemical studies of PCNA-protein will be useful in designing therapeutic agents, as well as estimating the outcome of anticancer drug development. This review summarizes the characterization of eukaryotic PCNA in relation to the protein structures, functions, and modifications, and interaction with proteins.

An research of the error detection method and efficient recovery algorithms in the DNA double helix (DNA 이중나선에서의 오류위치 검출 방법 및 효율적인 복구 알고리즘 연구)

  • Kim, SokeHwan;Hur, Chang-Wu
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.11
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    • pp.2557-2562
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    • 2012
  • In order to maintain order in the genetic information at cells, it need ongoing monitoring and recovery system. DNA is accomplished by a combination of base pairs, Wrong base pairs is formed with a much more lower frequency than the normal DNA. if it does not modify and was accumulate, the Cells were died. In this study, mistakes of DNA replication and repair of the damaged part was introduced engineering concepts by mimicking DNA repair functions. It was presented recover the complementary part of the previously announced and presented an efficient algorithm at find and recover the complementary part.

Putative Histone H2A Genes from a Red Alga, Griffithsia japonica

  • Lee, Yoo-Kyung;Lee, Hong-Kum
    • ALGAE
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    • v.18 no.3
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    • pp.191-197
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    • 2003
  • Histones are important proteins that interact with the DNA double helix to form nucleosome. Two putative histone genes, GjH2A-1 and GjH2A-2 were isolated from a red alga Griffithsia japonica. The putative open reading frame of GjH2A-1 and GjH2A-2 shared high similarity with the previously reported amino acid sequences of histone H2As. They have a motif consisting of seven amino acids A-G-L-Q-F-P-V, which matches the histone H2A motif [AC]-G-L-x-F-P-V. Phylogenetic trees were constructed from amino acid sequences of 38 histone H2As. The histone H2As were divided into two groups: major H2As and H2A.F/Z variants. The major histone H2A group consisted of animals, fungi, plants + green algae, and red algae H2A subgroups. The animal histone H2A subgroup was divided into vertebrates, echinoderms, nematodes, insects, and segmented worms H2As. The putative red algal histone genes, GjH2A-1 and GjH2A-2, constituted an independent lineage. This is the first report on red algal histone genes.

An research of the error detection method and efficient recovery algorithms in the DNA double helix. (DNA 이중나선에서의 오류위치 검출 방법 및 효율적인 복구 알고리즘 연구)

  • Kim, Soke-Hwan;Hur, Chang-Wu
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.10a
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    • pp.293-297
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    • 2012
  • In order to maintain order in the genetic information at cells, it need ongoing monitoring and recovery system. DNA is accomplished by a combination of base pairs, Wrong base pairs is formed with a much more lower frequency than the normal DNA. if it does not modify and was accumulate, the Cells were died. In this study, mistakes of DNA replication and repair of the damaged part was introduced engineering concepts by mimicking DNA repair functions. It was presented recover the complementary part of the previously announced and presented an efficient algorithm at find and recover the complementary part.

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Channel Capacity Analysis of DNA-based Molecular Communication with Length Encoding Mechanism

  • Xie, Jialin;Liu, Qiang;Yang, Kun;Lin, Lin
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.15 no.8
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    • pp.2923-2943
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    • 2021
  • The double helix structure of DNA makes it diverse, stable and can store information with high density, and these characteristics are consistent with the requirements of molecular communication for transport carriers. In this paper, a specific structure of molecular communication system based on DNA length coding is proposed. Transmitter (Tx) adopts the multi-layer golden foil design to control the release of DNA molecules of different lengths accurately, and receiver (Rx) adopts an effective and sensitive design of nanopore, and the biological information can be converted to the electric signal at Rx. The effect of some key factors, e.g., the length of time slot, transmission distance, the number of releasing molecules, the priori probability, on channel capacity is demonstrated exhaustively. Moreover, we also compare the transmission capacity of DNA-based molecular communication (DNA-MC) system and concentration-based molecular communication (MC) system under the same parameter setting, and the peak value of capacity of DNA-MC system can achieve 0.08 bps, while the capacity of MC system remains 0.025 bps. The simulation results show that DNA-MC system has obvious advantages over MC system in saving molecular resources and improving transmission stability.

Anticancer Activity of Indeno[1,2-b]-Pyridinol Derivative as a New DNA Minor Groove Binding Catalytic Inhibitor of Topoisomerase IIα

  • Jeon, Kyung-Hwa;Shrestha, Aarajana;Jang, Hae Jin;Kim, Jeong-Ahn;Sheen, Naeun;Seo, Minjung;Lee, Eung-Seok;Kwon, Youngjoo
    • Biomolecules & Therapeutics
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    • v.29 no.5
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    • pp.562-570
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    • 2021
  • Topoisomerase IIα has been a representative anti-cancer target for decades thanks to its functional necessity in highly proliferative cancer cells. As type of topoisomerase IIα targeting drugs, topoisomerase II poisons are frequently in clinical usage. However, topoisomerase II poisons result in crucial consequences resulted from mechanistically induced DNA toxicity. For this reason, it is needed to develop catalytic inhibitors of topoisomerase IIα through the alternative mechanism of enzymatic regulation. As a catalytic inhibitor of topoisomerase IIα, AK-I-191 was previously reported for its enzyme inhibitory activity. In this study, we clarified the mechanism of AK-I-191 and conducted various types of spectroscopic and biological evaluations for deeper understanding of its mechanism of action. Conclusively, AK-I-191 represented potent topoisomerase IIα inhibitory activity through binding to minor groove of DNA double helix and showed synergistic effects with tamoxifen in antiproliferative activity.

A Study on the Art Management and Cultural Activities in China from the K-Wave Case

  • Jia Ning LI;Su SHUAI;Zhang FAN
    • Journal of Koreanology Reviews
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    • v.2 no.1
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    • pp.27-31
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    • 2023
  • The purpose of this paper is to study the relationship between Art management and Cultural activities in China from the K-wave case. Research design, data, and methodology: This study used the method of the cases study survey, with the K-wave case in as the survey objects, 3 valid survey sample case were collected in this paper. Results: The two dimensions of art management and cultural activities differently influences from the K-wave, and the influence of availability on customer satisfaction is not significant. Conclusion: The results of this study will provide useful reference for the Art management and Cultural activities in China from the K-wave case. And improve the development of art management and cultural activities in China by improving the K-wave of service quality. Art management can shape urban commercial space in a beneficial way, create a good consumption atmosphere, and enhance the attractiveness and competitiveness of the city. The introduction of art elements into urban commercial space can create a strong cultural atmosphere, so that the city presents a smart look. Art management has a positive impact on K-Wave production and operation activities, which can promote the shaping of art commercial space, the promotion of urban cultural atmosphere.

cis-Diamminedichloroplatinum (II) induces denaturation and conformational changes in pBR322 DNA (cis-Diamminedichloroplatinum(II)에 의한 pBR322 DNA의 변성과 구조 변화)

  • Koo, Ja-Choon;Lim, Chang-Soo;Hahn, Tae-Ryong;Yang, Jai-Myung
    • Applied Biological Chemistry
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    • v.33 no.4
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    • pp.343-348
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    • 1990
  • E. coli LE392, transformed with CDDP-treated pBR322 DNA, was plated on ampicillin containing media. The number of colonies formed on ampicillin containing agar plate was reduced to undetectable level after treat the DNA with 13.3 ${\mu}M$ CDDP. The CDDP-treated pBR322 DNA was susceptible to sing1e strand DNA specific S1 nuclease and it's migration Pattern in agarose gel electrophoresis was changed. These results suggest that CDDP adduction to pBR322 DNA resulted in denaturation of the double helix and changes in it's conformation which ultimately leads In the inactivation of the ampicillin resistant sere.

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Numerical Analysis on Plasma Particles inside Electro-magnetic Field Using Particle-in-cell Method (Particle-in-cell 기법을 이용한 전자기장내 플라즈마 입자의 거동 해석)

  • Han, Doo-Hee;Joe, Min-Kyung;Shin, Junsu;Sung, Hong-Gye;Kim, Su-Kyum
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.45 no.11
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    • pp.932-938
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    • 2017
  • Particle-in-cell method which blends Eulerian grids and Lagrangian particle is utilized to solve simplified hall-effect thruster. Since this study individually tracks not only neutrons and ions but also electrons, message passing interface(mpi) scheme is adopted for parallel computer cluster. Helical movement of an electron cloud in constant magnetic field is validated comparing with an exact solution. A plasma in radial magnetic field and axial electric field in a reaction cylinder is established. Electrons do double helix movement and are well anchored in a cylinder. Ionization of neutrons by impact with high-speed electrons generates ion particles. They are accelerated by axial electric field, which forms a plume of a plasma-effect thruster.