• Title/Summary/Keyword: bind

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Network Pharmacology: Prediction of Astragalus Membranaceus' and Cornus Officinalis' Active Ingredients and Potential Targets to Diabetic Nephropathy (네트워크 약리학을 통한 당뇨병성 신병증에서의 황기와 산수유의 활성 성분 및 잠재 타겟 예측)

  • Lee, Keun-Hyeun;Rhee, Harin;Jeong, Han-Sol;Shin, Sang Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.31 no.6
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    • pp.313-327
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    • 2017
  • The purpose of this study is to predict the effects of macroscopic and integrative therapies by finding active ingredients, potential targets of Astragalus membranaceus (Am) and Cornus officinalis (Co) for diabetic nephropathy. We have constructed network pharmacology-based systematic and network methodology by system biology, chemical structure, chemogenomics. We found several active ingredients of Astragalus membranaceus (Am) and Cornus officinalis (Co) that were speculated to bind to specific receptors which had been known to have a role in the progression of diabetic nephropathy. Four components of Am and eleven components of Co could bind to iNOS; two ingredients of Am and six ingredients of Co could docking to cGB-PDE; one component of Am and nine components of Co could bind to ACE; three ingredients of Co with neprilysin; three components of Co with ET-1 receptor; four ingredients of Am and fourteen ingredients of Co with mineralocorticoid receptor; one component of Am and seven components of Co with interstitial collagenase; one ingredient of Am and ten ingredients of Co with membrane primary amine oxidase; one component of Am and four components of Co with JAK2; two ingredients of Am and one ingredient of Co with MAPK 12; one component of Am and five components of Co could docking to TGF-beta receptor type-1. From this work we could speculate that the possible mechanisms of Am and Co for diabetic nephropathy are anti-inflammatory, antioxidant and antihypertensive effects.

Recognition of DNA by IHF : Sequence Specifficity Mediated by Residues That Do Not Contact DNA

  • Read, Erik K.;Cho, Eun Hee;Gardner, Jeffrey F.
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 2001.06a
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    • pp.35-39
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    • 2001
  • The Integration Host factor (IHF) of Escherichia coli is a small, basic protein that is required for a variety of functions including site-specific recombination, transposition, gene regulation, plasmid replication, and DNA packaging. It ,is composed of two subunits that are encoded by the ihfA ($\alpha$-subunit) and ihjB ($\beta$-subunit) genes. IHF binding sites are composed of three elements called the WATCAR, TTG, and poly (dAT) elements. We have characterized IHF binding to the H site of bacteriophage λ. We have isolated suppressors that bind to altered H' sites using a challenge phage selection. Two different suppressors were isolated that changed the adjacent $\alpha$P64 and $\alpha$K65 residues. The suppressors recognized both the wild-type site and a site with a change in the WATCAR element. Three suppressors were isolated at $\beta$-E44. These suppressors bound the wild-type and a mutant site with a T:A to A:T change (H44A) in the middle of the TIR element. Site-directed mutagenesis was used to make several additional changes at $\beta$E44. The wild-type and $\beta$E44D mutant could not bind the wild-type site but were able to bind the H44A mutant site. Other mutants with neutral, polar, or a positive charge at $\beta$E44 were able to repress both the wild-type and H44A sites. Examination of the IHF crystal structure suggests that the ability of the wild-type and $\beta$E44D proteins to discriminate between the T:A and A:T basepairs is due to indirect interactions. The $\beta$-E44 residue does not contact the DNA directly. It imposes binding specificity indirectly by interactions with residues that contact the DNA. Details of the proposed interactions are discussed.

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Construction and Characterization of an Anti-Hepatitis B Virus preS1 Humanized Antibody that Binds to the Essential Receptor Binding Site

  • Wi, Jimin;Jeong, Mun Sik;Hong, Hyo Jeong
    • Journal of Microbiology and Biotechnology
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    • v.27 no.7
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    • pp.1336-1344
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    • 2017
  • Hepatitis B virus (HBV) is a major cause of liver cirrhosis and hepatocellular carcinoma. With recent identification of HBV receptor, inhibition of virus entry has become a promising concept in the development of new antiviral drugs. To date, 10 HBV genotypes (A-J) have been defined. We previously generated two murine anti-preS1 monoclonal antibodies (mAbs), KR359 and KR127, that recognize amino acids (aa) 19-26 and 37-45, respectively, in the receptor binding site (aa 13-58, genotype C). Each mAb exhibited virus neutralizing activity in vitro, and a humanized version of KR127 effectively neutralized HBV infection in chimpanzees. In the present study, we constructed a humanized version (HzKR359-1) of KR359 whose antigen binding activity is 4.4-fold higher than that of KR359, as assessed by competitive ELISA, and produced recombinant preS1 antigens (aa 1-60) of different genotypes to investigate the binding capacities of HzKR359-1 and a humanized version (HzKR127-3.2) of KR127 to the 10 HBV genotypes. The results indicate that HzKR359-1 can bind to five genotypes (A, B, C, H, and J), and HzKR127-3.2 can also bind to five genotypes (A, C, D, G, and I). The combination of these two antibodies can bind to eight genotypes (A-D, G-J), and to genotype C additively. Considering that genotypes A-D are common, whereas genotypes E and F are occasionally represented in small patient population, the combination of these two antibodies might block the entry of most virus genotypes and thus broadly neutralize HBV infection.

Studies on the Manufacture of Underia pinnatifida Laver and it's Physicochemical Properties - I. Histochemical Properties - (미역김의 제조와 이화학적 특성에 관한 연구 - 제 1 보 : 미역김의 조직화학적 특성 -)

  • Kim, Kil-Hwan;Kim, Chang-Sik
    • Korean Journal of Food Science and Technology
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    • v.14 no.4
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    • pp.336-341
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    • 1982
  • The histochemical examination of Undaria pinnatifida Laver were conducted with light microscope and electron microscope. The results obtained were as follow: 1. Undaria pinnatifida frond were composed with epidermis, cortex and medulla. But the cutting section of Undaria pinnatifida Laver showed that only the epidermal cell were bound to each other. The cortex and medulla of the frond were destroyed during U.P. Laver process. 2. To identification of bind material of U.P. Laver, which were treated with sodium carbonate solution for extraction of alginic acid and reacted with Periodic Acid Schiff(PAS) reagent. And the PAS reaction result was negative by light microscope observation. On this result, we found out that the alginic acid has the binder role of U.P. Laver. 3. Also, the bind structure of U.P. Laver were observed by electron microscope and could well find out the epidermal cell wall and bind position of alginic acid, which were could not observed by light microscope.

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Prevalence of autoantibodies that bind to kidney tissues in cats and association risk with antibodies to feline viral rhinotracheitis, calicivirus, and panleukopenia

  • Songaksorn, Nisakorn;Petsophonsakul, Wilaiwan;Pringproa, Kidsadagon;Lampang, Kannika Na;Sthitmatee, Nattawooti;Srifawattana, Nuttawan;Piyarungsri, Kakanang;Thongkorn, Kriangkrai
    • Journal of Veterinary Science
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    • v.22 no.3
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    • pp.38.1-38.17
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    • 2021
  • Background: The feline viral rhinotracheitis, calicivirus, and panleukopenia (FVRCP) vaccine, prepared from viruses grown in the Crandell-Rees feline kidney cell line, can induce antibodies to cross-react with feline kidney tissues. Objectives: This study surveyed the prevalence of autoantibodies to feline kidney tissues and their association with the frequency of FVRCP vaccination. Methods: Serum samples and kidneys were collected from 156 live and 26 cadaveric cats. Antibodies that bind to kidney tissues and antibodies to the FVRCP antigen were determined by enzyme-linked immunosorbent assay (ELISA), and kidney-bound antibody patterns were investigated by examining immunofluorescence. Proteins recognized by antibodies were identified by Western blot analysis. Results: The prevalences of autoantibodies that bind to kidney tissues in cats were 41% and 13% by ELISA and immunofluorescence, respectively. Kidney-bound antibodies were observed at interstitial cells, apical border, and cytoplasm of proximal and distal tubules; the antibodies were bound to proteins with molecular weights of 40, 47, 38, and 20 kDa. There was no direct link between vaccination and anti-kidney antibodies, but positive antibodies to kidney tissues were significantly associated with the anti-FVRCP antibody. The odds ratio or association in finding the autoantibody in cats with the antibody to FVRCP was 2.8 times higher than that in cats without the antibody to FVRCP. Conclusions: These preliminary results demonstrate an association between anti-FVRCP and anti-cat kidney tissues. However, an increase in the risk of inducing kidney-bound antibodies by repeat vaccinations could not be shown directly. It will be interesting to expand the sample size and follow-up on whether these autoantibodies can lead to kidney function impairment.

BINDING NUMBER AND HAMILTONIAN (g, f)-FACTORS IN GRAPHS

  • Cai, Jiansheng;Liu, Guizhen
    • Journal of applied mathematics & informatics
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    • v.25 no.1_2
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    • pp.383-388
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    • 2007
  • A (g, f)-factor F of a graph G is Called a Hamiltonian (g, f)-factor if F contains a Hamiltonian cycle. The binding number of G is defined by $bind(G)\;=\;{min}\;\{\;{\frac{{\mid}N_GX{\mid}}{{\mid}X{\mid}}}\;{\mid}\;{\emptyset}\;{\neq}\;X\;{\subset}\;V(G)},\;{N_G(X)\;{\neq}\;V(G)}\;\}$. Let G be a connected graph, and let a and b be integers such that $4\;{\leq}\;a\;<\;b$. Let g, f be positive integer-valued functions defined on V(G) such that $a\;{\leq}\;g(x)\;<\;f(x)\;{\leq}\;b$ for every $x\;{\in}\;V(G)$. In this paper, it is proved that if $bind(G)\;{\geq}\;{\frac{(a+b-5)(n-1)}{(a-2)n-3(a+b-5)},}\;{\nu}(G)\;{\geq}\;{\frac{(a+b-5)^2}{a-2}}$ and for any nonempty independent subset X of V(G), ${\mid}\;N_{G}(X)\;{\mid}\;{\geq}\;{\frac{(b-3)n+(2a+2b-9){\mid}X{\mid}}{a+b-5}}$, then G has a Hamiltonian (g, f)-factor.

Availability of Carboxylated Magnetic Beads for Extracting Heavy Metals from Aqueous Solution

  • So, Hyung-Suk;Yoo, Yeong-Seok;Schaeffer Andreas
    • Journal of Magnetics
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    • v.11 no.2
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    • pp.98-102
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    • 2006
  • It was examined in this study that magnetic beads, which are assumed to be environmentally functional, could be effective in processing heavy metals that are water pollutants. For the purpose, magnetic beads containing carboxyl groups, which has strong binding force with heavy metals, are mixed with each Cd, Pb, Ni, Cu and Cr(III) solution, then stirred in pH 6. As a results of the process, it was proven that heavy metals bind quickly with magnetic beads through the reaction. In order to analyze heavy metal concentration, magnetic beads bind with heavy metal were collected by external magnetic force and dissolved in acid. The graphite furnace AAS was used to get heavy metal concentration melted in the acid solution. The results showed that heavy metal extractions by magnetic beads were influenced by the type and the concentration of a heavy metal, and over 90% of a heavy metal can be extracted in ppm level save for Cr(III). It was also examined in the study whether heavy metal extraction is influenced when other ions exist in each heavy metal solution. According to experiment, adding other heavy metals to a solution did have little influence on extracting an intended heavy metal. But in case salt or heavy metal chelate was added, Ni extraction changed sensitively although extracting other heavy metals were influenced only when the concentration of an added substance is high. In conclusion, it was shown that magnetic beads could be used to treat wastewater with relatively high heavy metal concentration.

The Types of Relationship Quality and Multi-loyal Relations of Department Store Fashion Consumers (백화점 패션상품 구매고객 관계본질 유형과 충성대상)

  • Moon, Hee-Kang;Rhee, Eun-Young
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.10
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    • pp.1497-1508
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    • 2008
  • The objective of this study is to identify the types of relationship quality of department store fashion consumers. This study also aims to look at if consumers form different type of relationship quality with various relation partners. In this study, qualitative research was conducted on 25 female consumers to come to a comprehensive and in-depth understanding of fashion consumers' diverse loyal relationships. Fashion consumer's relationship quality consisted of 'self attachment', 'symbolic', 'trust', 'intimacy', 'compensational bind', and 'habitual alternative'. 6 relationship quality dimensions were distinguished according to each dimension's emotional involvement level and conscious activeness level of consumers. While self attachment was classified as emotional and active relationship quality, compensational bind and habitual alternative were typical relationship quality types of fashion store loyalty such as department store loyalty, thus classified as inertial and cognitive relationship quality type. This study might provide a useful direction to apparel brands and retailers in finding out which relationship quality type is more effective for differentiated marketing strategies.

Binding of Aflatoxin G1, G2 and B2 by Probiotic Lactobacillus spp.

  • Byun, J.R.;Yoon, Y.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.11
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    • pp.1686-1689
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    • 2003
  • The ability of ten probiotic bacteria to bind a common food carcinogen aflatoxin $G_1$,$G_2$ and $B_2$ was assessed. The strains were incubated in vitro with aflatoxins and the toxin residues in the supernatant were measured using high performance liquid chromatography. The aflatoxin $G_1$ binding capacity of the strains was found to strain dependent, most efficient binding of AF$G_1$ was observed by L. acidophilus CU028 and L. brevis CU06 which bound approximately 50%. L. acidophilus CU028 was capable of bind approximately 67% of AF$G_2$, difference in their binding ability showed statistical significance (p>0.05). L. acidophilus CU028 and L. helveticus CU 631 were the best binders and the strains were observed to possess variable AF$B_2$-binding ability in the range was from 38.0% to 55.9%. Lactobacillus acidophilus CU028 was the best common binders of the three types of food carcinogen aflatoxins. The application of binding phenomenon in the removal of mycotoxins from contaminated feeds is urgently needed to improve the safety of feeds.