• Title/Summary/Keyword: bind

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Binding Aspect of Cyclic AMP Receptor Protein to Symmetrically Synthetic 22-, 28- and 30-Base-Pair lac Promoters

  • Park, Sang-Ho;Lee, Tae-Woo;Hwang, Eun-Suk;Lee, Seung-Ki;Shin, Cha-Gyun;Lee, Bong-Jin
    • Journal of the Korean Magnetic Resonance Society
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    • v.1 no.1
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    • pp.31-44
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    • 1997
  • The effect of the binding of CRP to the symmetrically synthetic 22, 28, and 30 bp lac promoter was investigated by 1H NMR. The binding of cAMP*CRP to the 22 bp DNA did not bring about any changes in the chemical shift values, but did cause selective line broadening of imino proton resonances of specific base pairs. However, The binding of cAMP*CRP to the 28 and 30 bp DNA brought about large changes on the imino proton resonances that seems to be induced by DNA bending. We studied also the role of cAMP as an activator of DNA/CRP complex formation by gel mobility shift assay. Gel mobility shift assay revealed that the cAMP*CRP complex was not able to bind to the 22 bp DNA fragment, but was able to bind to the 28 bp DNA fragment of lac promoter region.

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Efficacy of Flaxseed Flour as Bind Enhancing Agent on the Quality of Extended Restructured Mutton Chops

  • Sharma, Heena;Sharma, Brahma Deo;Mendiratta, S.K.;Talukder, Suman;Ramasamy, Giriprasad
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.2
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    • pp.247-255
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    • 2014
  • Consumers have become very conscious about their nutrition and well being due to changes in their socio-economic lifestyle and rapid urbanization. Therefore, development of technology for production of low cost and functional meat products is urgently required. One such approach is innovative restructuring technology in which binding of meat pieces still remains the main challenge and extension of product is generally associated with poor binding and texture. Thus, the present study was envisaged as an attempt to solve this problem by the incorporation of flaxseed flour (FF) as bind enhancing agent. The FF was used at three different levels viz., 0.5%, 1%, and 1.5% to replace lean meat in pre-standardized restructured mutton chops formulation. The products were subjected to analysis for physico-chemical, sensory and textural properties. Cooking yield, moisture percentage and fat percentage increased with increase in the level of incorporation of FF, however, protein percent and pH decreased with increase in the level of incorporation. Shear force value of product incorporated with 1.5% FF was significantly higher (p<0.01) than control and product containing 0.5% FF level. Among the sensory attributes, product with 1% flaxseed flour showed significantly higher values (p<0.05) for general appearance, binding, texture and overall acceptability. Hardness showed significant increasing (p<0.01) values with increasing levels of incorporation of flaxseed flour, however all other parameters of texture profile analysis showed a decreasing trend. On the basis of sensory scores and physico-chemical properties, the optimum incorporation level of FF was adjudged as 1%. Products incorporated with optimum level of flaxseed flour (1%) were also assessed for water activity and microbiological quality during the storage period of 15 days. It was found that the extended restructured product could be safely stored under refrigeration ($4^{\circ}C{\pm}1^{\circ}C$) in low density polyethylene (LDPE) pouches for 15 days without marked deterioration in sensory and microbiological quality. Thus, it was concluded that flaxseed flour can be used as a good bind enhancing agent in extended restructured meat products at an economic cost.

Promoter Structure Which Affects on the Expression of Yeast MGMT Gene

  • Choe, Soo-Young
    • BMB Reports
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    • v.30 no.1
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    • pp.41-45
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    • 1997
  • The present study was performed to analyze the molecular mechanism which dictates the transcription regulation of the $O^6$-methylguanine-DNA methyltransferase (MGMT) gene in Saccharomyces cerevisiae. Previously we identified one possible upstream repressing sequence (URS) in MGMT promoter by promoter deletion and competition analysis. In this paper we report another regulatory element (UAS: upstream activating sequence. -213 to -136) which affects the transcription activity of MGMT promoter. Gel mobility shift assay and Southwestern blot analysis using UAS probe showed several specific proteins which were able to bind to this sequence.

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BINDING NUMBER CONDITIONS FOR (a, b, k)-CRITICAL GRAPHS

  • Zhou, Sizhong
    • Bulletin of the Korean Mathematical Society
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    • v.45 no.1
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    • pp.53-57
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    • 2008
  • Let G be a graph, and let a, b, k be integers with $0{\leq}a{\leq}b,k\geq0$. Then graph G is called an (a, b, k)-critical graph if after deleting any k vertices of G the remaining graph of G has an [a, b]-factor. In this paper, the relationship between binding number bind(G) and (a, b, k)-critical graph is discussed, and a binding number condition for a graph to be (a, b, k)-critical is given.

Facially Amphiphilic Architectures as Potent Antimicrobial Peptide Mimetics: Activity and Biophysical Insight

  • Tew Gregory N.
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.261-261
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    • 2006
  • Membranes are a central feature of all biological systems and their ability to control many cellular processes is critically important. As a result, a better understanding of how molecules bind to biological membranes is an active area of research. In this report, the interaction between our biomimetic structures and different biological membranes is reported using both model vesicle and in vitro bacterial cell experiments. These results show that lipid composition is more important for selectivity than overall net charge. An effort is made to connect model vesicle studies with in vitro data and naturally occurring lipid compositions.

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A Study on Possible Interaction between Nicotine-specific Nitrosamines and Nucleic Acid Bases by Molecular Orbital Theory (I) N'-nitrosonornicotine and Its Metabolic Intermediates (분자궤도 함수이론에 의한 니코틴 특이 니트로사민과 핵산염기와의 가능한 상호작용에 관한 연구(I) 니트로소놀니코틴과 그 대사중간물질)

  • 이종달
    • YAKHAK HOEJI
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    • v.26 no.3
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    • pp.175-180
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    • 1982
  • The intermediate of N'-nitrosonornicotine may bind to the guanine moiety of a G-C base pair. The hydrogen bond of the base pair may be broken and a new hydrogen bond can form between the intermediate and the guanine. It results in the "short" type of DNA repair.NA repair.

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Estimation of Spatial Dependence with GEE

  • Lee, Yoon-Dong;Choi, Hye-Mi
    • Proceedings of the Korean Statistical Society Conference
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    • 2003.05a
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    • pp.269-273
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    • 2003
  • We consider an efficient parametric estimation method of spatial dependence in weak stationary processes. Spatial dependence is modeled through variogram and correlogram. Most of parametric estimation methods of correlogram use two step method; nonparametric estimation and parametric integration. We bind these two steps into one step by using GEE method instead of least squares type optimization. Our one step method is more efficient statistically and gives a clear interpretation of related concepts used in traditional two step methods.

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A Misfolded Thyroglobulin is Retained by Molecular Chaperones in the Endoplasmic Reticulum

  • Kwon, O-Yu;Seong, Yeon-Mun;Shong, Min-Bo
    • Journal of Life Science
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    • v.9 no.1
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    • pp.90-92
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    • 1999
  • Deficient thyroglobulin is one of the important causes of congenital hypothyroid goiter with a prevalence of -1/40,000 humans. We now demonstrate that in cog/cog mice showing hypothyroidism, four endoplasmic reticulum-molecular chaperones stably bind to thyroglobulin, providing insight into physiologic regulation of endoplasmic reticulum storage diseases.

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Ginseng Research in China During The Past 20 Years (중국의 인삼연구)

  • Wang, Zhen-Gang
    • Journal of Ginseng Research
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    • v.20 no.4
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    • pp.556-557
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    • 1996
  • Ginseng (Panax ginseng) has been used as a tonic drug in Chinese Traditional Medicine for two thousand years. It is believed to be significantly beneficial for human health. During the past 20 years. due to the modern chemical, biological and pharmacological technology. the ginseng research of China has been developed rapidly Major-work has been carried out by many laboratories in beijing. shanghai and shonzhen, etc Since most of the research works were supported by pharmacological companies. Many interesting papers sometimes are of confidential limitation. It is not easy to bind those papers in common library. To make a comprehensive review of ginseng is very difficult and reluctant.

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HOW TO DEVELOPE NEW PRO BIOTIC WITH ANTI Helicohacter pylori FUNCTION

  • Lee Yeonhee
    • Proceedings of the Korean Society of Food Science and Nutrition Conference
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    • 2001.12a
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    • pp.161-169
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    • 2001
  • Lactic acid producing bacteria were isolated from baby feces and characterized to be used as a probiotic with anti Helicobacter pylori functions. The selected bacteria had inhibition activity on the adherance and growth of H. pylori. These bacteria had additional beneficial characteristics for the probiotic such as antibacterial activity, antitumor activity, immunostimulation activity, resistance to antibiotic and bile salt, ability to bind to the intestinal cells, and safe for the human use.

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