• Title/Summary/Keyword: TCTP

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Binding modes of artemisinin to malarial TCTP demonstrated by computer modeling

  • Chai, Jin-Sun;Kim, Choon-Mi
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.315.2-315.2
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    • 2002
  • The translationally controlled tumor-associated proteins (TCTPs) are a highly conserved and abundantly expressed family of eukaryotic proteins that are implicated in both cell growth and human acute allergic response but whose intracellular biochemical function has remained elusive. There are reports that antimalarial drug, artemisinin. binds to Plasmodium falciparum TCTP. however, its 3D structure has not been known. (omitted)

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Identification of the Interaction between Rat Translationally Controlled Tumor Protein/IgE-dependent Histamine Releasing Factor and Myosin Light Chain

  • Kim, Min-Jeong;Jung, Jae-Hoon;Choi, Eung-Chil;Park, Hae-Young;Lee, Kyung-Lim
    • BMB Reports
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    • v.34 no.6
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    • pp.526-530
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    • 2001
  • The translationally controlled tumor protein (TCTP), also known as the IgE-dependent histamine releasing factor (HRF), was used in the yeast two-hybrid system to screen the interacting molecules. We obtained the N-terminus truncated rat fast myosin alkai light chain from the rat skeletal muscle cDNA library in the screening. Since either TCTP/HRF or the myosin light chain is known to be associated with histamine secretion from RBL-2H3 cells, we investigated the possible interaction between rat TCTP/HRF and nonmuscle myosin light chain in these cells. We used affinity chromatography and coimmunoprecipitation. Our data suggests that HRF and the myosin light chain interact, which may play an important role in histamine release in RBL-2H3 cells.

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A multi-objective decision making model based on TLBO for the time - cost trade-off problems

  • Eirgash, Mohammad A.;Togan, Vedat;Dede, Tayfun
    • Structural Engineering and Mechanics
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    • v.71 no.2
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    • pp.139-151
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    • 2019
  • In a project schedule, it is possible to reduce the time required to complete a project by allocating extra resources for critical activities. However, accelerating a project causes additional expense. This issue is addressed by finding optimal set of time-cost alternatives and is known as the time-cost trade-off problem in the literature. The aim of this study is to identify the optimal set of time-cost alternatives using a multiobjective teaching-learning-based optimization (TLBO) algorithm integrated with the non-dominated sorting concept and is applied to successfully optimize the projects ranging from a small to medium large projects. Numerical simulations indicate that the utilized model searches and identifies optimal / near optimal trade-offs between project time and cost in construction engineering and management. Therefore, it is concluded that the developed TLBO-based multiobjective approach offers satisfactorily solutions for time-cost trade-off optimization problems.

Identification of the Differentially Expressed Genes of Hanwoo During the Growth Stage by Subtractive cDNA Hybridization (Subtraction 기법을 이용한 한우 성장 단계 특이 발현 유전자 탐색)

  • Jang, Y.S.;Kim, T.H.;Yoon, D.H.;Park, E.W.;Cheong, I.C.;Jo, J.K.
    • Journal of Animal Science and Technology
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    • v.44 no.1
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    • pp.13-22
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    • 2002
  • To identify the differentially expressed genes at growth stage of Hanwoo, we constructed the subtractive cDNA library from loin mRNA of 12- and 24-month old Hanwoo by PCR-based subtraction. The fourteen genes were confirmed by sequencing and reverse northern blot analysis, and they were selected as candidate of putative genes differentially expressed at the growth stage of Hanwoo. Three subtracted cDNA fragments that expressed specific signal to cDNA probe for 6-month-old loin of Hanwoo were highly homologous to those of the genes encoding EPV 20, Ca2+ATPase, and TCTP, respectively. The nine cDNA clones showed intense signal to cDNA probe from 12-month-old loin of Hanwoo, and highly homologus to those of genes encoding VCP, HSP 70, aldolase A, MSSK1, GM-2 activator protein, ryanodine receptor, acidic ribosomal phosphoprotein p1, ADP/ATP translocase, and UCP 2, respectively. Two subtracted cDNA clones that expressed specific signal to cDNA probes for 12- and 24-month-old loin of Hanwoo were detected. One of them was highly homologus to the gene encoding ferrochelatase and the other was highly homologus to the gene encoding ADRP.

PKC Isotype that Affects the Interaction of HRF with Na, K-ATPase (Na,K-ATPase와 IgE-Dependent Histamine Releasing Factor의 결합에 영향을 미치는 Protein Kinase C Isotype에 관한 연구)

  • Sohn Wern-Joo;Lee Kyunglim
    • Microbiology and Biotechnology Letters
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    • v.33 no.4
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    • pp.260-266
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    • 2005
  • IgE-dependent histamine releasing factor (HRF), previously known as P23/P21 or translationally controlled tumor protein (TCTP), induces the degranulation of histamine in mast cell and basophil. Yeast two hybrid results showed that HRF interacts with the alpha subunit of Na, K-ATPase, suggesting that HRF is a regulator for governing the activity of Na, K-ATPase. In this study, we examined the interaction of HRF and Wa,K-ATPase after treatments of various PKC isotype inhibitors. Membrane fractionation, pull-down assay and immunoprecipitation results showed that PKC $\alpha,\;PKC\;\beta,\;\delta$ subunits are involved in the phosphorylation of HRF. However, these results did not correlate with the results of histamine release assay since histamine release assay results suggested that some PKC isotype inhibitors induced the histamine release in RBL-2H3 cell.