• 제목/요약/키워드: motifs

검색결과 620건 처리시간 0.026초

Identification of SUMOylated proteins in neuroblastoma cells after treatment with hydrogen peroxide or ascorbate

  • Grant, Melissa M.
    • BMB Reports
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    • 제43권11호
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    • pp.720-725
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    • 2010
  • The small ubiquitin-like modifier (SUMO) proteins have been implicated in the pathology of a number of diseases, including neurodegenerative diseases. The conjugation machinery for SUMOylation consists of a number of proteins which are redox sensitive. Here, under oxidative stress ($100{\mu}M$ hydrogen peroxide), antioxidant ($100{\mu}M$ ascorbate) or control conditions 169 proteins were identified by electospray ionisation fourier transform ion cyclotron resonance mass spectrometry. The majority of these proteins (70%) were found to contain SUMOylation consensus sequences. From the remaining proteins a small number (12%) were found to contain possible SUMO interacting motifs. The proteins identified included DNA and RNA binding proteins, structural proteins and proteasomal proteins. Several of the proteins identified under oxidative stress conditions had previously been identified as SUMOylated proteins, thus validating the method presented.

Sequence-specific interaction between ABD-B homeodomain and castor gene in Drosophila

  • Kim, Keon-Hee;Yoo, Siuk
    • BMB Reports
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    • 제47권2호
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    • pp.92-97
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    • 2014
  • We have examined the effect of bithorax complex genes on the expression of castor gene. During the embryonic stages 12-15, both Ultrabithorax and abdominal-A regulated the castor gene expression negatively, whereas Abdominal-B showed a positive correlation with the castor gene expression according to real-time PCR. To investigate whether ABD-B protein directly interacts with the castor gene, electrophoretic mobility shift assays were performed using the recombinant ABD-B homeodomain and oligonucleotides, which are located within the region 10 kb upstream of the castor gene. The results show that ABD-B protein directly binds to the castor gene specifically. ABD-B binds more strongly to oligonucleotides containing two 5'-TTAT-3' canonical core motifs than the probe containing the 5'-TTAC-3' motif. In addition, the sequences flanking the core motif are also involved in the protein-DNA interaction. The results demonstrate the importance of HD for direct binding to target sequences to regulate the expression level of the target genes.

자수를 이용한 모피 머플러 디자인 개발 (A Study on Design Development of Embroidered Fur Muffler)

  • 이희정;최현숙
    • 복식
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    • 제61권6호
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    • pp.74-85
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    • 2011
  • In modern fashion, accessories are recognized as indispensable articles for the completion of a look. Scarf and muffler has attained significance as a main fashion item. The purpose of study was to analyze the motifs of special material for muffler design on special material, and to seek unique and decorative effect using three dimensional method on the flat surfaced textile to give novelty. This study introduced technique of applying embroidery onto special materials such as fur and leather to achieve variety of texture effect. The results are as follows: Six designs were proposed. Each work has different detail and silhouette, and the unique motif design using embroidery with cotton, nylon, and bead on fur, leather, wool, and satin. This will be a method to develop value-added products in fashion and formative arts.

Genetically Independent Tetranucleotide to Hexanucleotide Core Motif SSR Markers for Identifying Lentinula edodes Cultivars

  • Saito, Teruaki;Sakuta, Genki;Kobayashi, Hitoshi;Ouchi, Kenji;Inatomi, Satoshi
    • Mycobiology
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    • 제47권4호
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    • pp.466-472
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    • 2019
  • For the purpose of protecting the rights of Lentinula edodes breeders, we developed a new simple sequence repeat (SSR) marker set consisting only of genetically independent tetranucleotide or longer core motifs. Using available genome sequences for five L. edodes strains, we designed primers for 13 SSR markers that amplified polymorphic sequences in 20 L. edodes cultivars. We evaluated the independence of every possible marker pair based on genotype data. Consequently, eight genetically independent markers were selected. The polymorphic information content values of the markers ranged from 0.269 to 0.764, with an average of 0.409. The markers could distinguish among 20 L. edodes cultivars and produced highly repeatable and reproducible results. The markers developed in this study will enable the precise identification of L. edodes cultivars, and may be useful for protecting breeders' rights.

Construction of Novel Plasmid Vector for DNA Immunization

  • 박영섭;박재영;정동건;최차용;주현
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2002년도 생물공학의 동향 (X)
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    • pp.543-547
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    • 2002
  • DNA vaccines use eukaryote expression vectors to produce immunizing proteins in the vaccinated host and it represents a novel approach to vaccine and immuno-therapeutic development. We constructed a 2.9 kb compact plasmid vector (pVAC) which contains CMV promoter, polycloning site, BGH poly A terminator, ampicillin resistance gene and PBR322 origin. Enriched unmathlyated CpG motifs have introduced into pVAC-ISS1 and pVAC-ISS2 which are derived from pVAC for enhancing Thl responses. These plasmid DNAs rapidly induced interleukin 6 secretion in vivo. It is expected that these vectors will contribute to the DNA inoculation against infectious disease and various cancers without adjuvant.

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하회마을을 모티브로 한 문화상품 디자인 개발 (Cultural Goods Development with Hahoe Village Motif)

  • 서석민
    • 한국가구학회지
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    • 제27권2호
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    • pp.96-103
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    • 2016
  • This article is to develop test product as adopting motifs from Andong Hahoe Village registered in the UNESCO World Heritage. This study associates physiographic features and images of Hahoe Village with test product. In the research result of this study, the value of product and possibility of success of test product was found as follows. Firstly, Making the puzzle-oriented Desk Service Hahoe Village views by using 22 different styles & functional artworks. Secondly, Producing the tangible forms such as a tree, thatched cottage, arbor, tile-roofed house and ferryboat by casting technique. Thirdly, Designing the shape of the terrain by utilizing computer programing softwares such as CAD drawings and ARTCAM. Finally, Developing the mass-produce goods reflecting region historical and cultural characteristics. I expect this study may increase of interest of our country's culture and play several roles of the bridgehead for product development. Also I reconsider sensitivity recovery of users and our cultural value increase.

Molecular Mechanisms Involved in Bacterial Speck Disease Resistance of Tomato

  • Kim, Young-Jin;Gregory B. Martin
    • The Plant Pathology Journal
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    • 제20권1호
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    • pp.7-12
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    • 2004
  • An important recent advance in the field of plant-microbe interactions has been the cloning of genes that confer resistance to specific viruses, bacteria, fungi or insects. Disease resistance (R) genes encode proteins with predicted structural motifs consistent with them having roles in signal recognition and transduction. Plant disease resistance is the result of an innate host defense mechanism, which relies on the ability of plant to recognize pathogen invasion and efficiently mount defense responses. In tomato, resistance to the pathogen Pseudomonas syringae pv. tomato is mediated by the specific recognition between the tomato serine/threonine kinase Pto and bacterial protein AvrPto or AvrPtoB. This recognition event initiates signaling events that lead to defense responses including an oxidative burst, the hypersensitive response (HR), and expression of pathogenesis- related genes.

BINDING OF LEAF NUCLEAR PROTEIN EXTRACTS TO LIGHT-RESPONSIVIE ELEMENTS OF cab PROMOTERS OF Arabidopsis thaliana

  • Lee, Hwa-Hyung;Park, Hee-Jin
    • Journal of Photoscience
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    • 제3권2호
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    • pp.85-90
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    • 1996
  • The binding ability of leaf nuclear extracts to the lighbresponsive elements (LREs) of cab promoters of Arabidopsis thaliana has been investigated. The cab promoters were fragmented with restr ction endonucleases into LRE that were identified by Mitra et al. [Plant Mol. Biol. 12, 169179 ( 1989)] and other small fragments. After end labeling with Klenow fragment, the fragments were assayed for binding with the leaf nuclear proteins that were prepared by solubilizing the purified nuclei with 0.5 M ammonium sulfate. The binding ability was assayed by mobility shift assay. To perform successful mobility shift assay, several factors affecting the interaction of protein with DNA were optimized before performing the assay. The LREs had several retardation bands. However, the other promoter fragments from the transcription start site to the far upstream region of the promoters had also retardation bands. No particular relationships could be found between the retardation band distributions and the loci of LRE. It is likely that the light-regulation of cab gene expression may be controlled by the multiple interactions of the regulatory protein factors with DNA motifs.

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Regulation of Expression of the Bacillus caldolyticus Pyrimidine Biosynthetic Operon by pyrR Gene, an Autogenous Regulator

  • Ghim, Sa-Youl
    • Journal of Life Science
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    • 제11권2호
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    • pp.120-125
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    • 2001
  • The pyrR gene of the pyrimidine biosynthesis (pyr) operon of the thermophile Bacillus caldolyticus, encoding a uracil phosphoribosyltransferase (UPRTase), turned to rely as a pyr operon regulator. It has been proposed that PyrR mediates transcriptional termination-antitermination at three intercistronic regions of the par operon (S.-Y Ghim and J. Neuhard, J. Bacteriol.,176, 3698-3707, 1994). In this research, a plasmid carrying the pyrR region of B. caldolyticus could restore a pyrimidine regulation in a pyrR mutant of B. subtilis. Expression of pyrR was found to increase 6-7 fold during pyrimidine starvation. Additionally, a highly conserved nucleotide sequence which may constitute the binding site for a PyrR protein (PyrR-binding loop) in transcript was staggested. Alternative antiterminator and terminator structures involving three conserved motifs in front of the pyrR, pyrP and pyrB genes, respectively, are proposed to account for the observed regulation pattern.

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작가연구를 통한 유겐트스틸 (A Study on Jugendstill through Designers)

  • 조숙경
    • 한국가구학회지
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    • 제15권1호
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    • pp.63-72
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    • 2004
  • This study explored furniture and furniture designers in Art Nouveau which was called as Jugendstill in Germany. Jugendstill was developed on the center of Munchen, Darmstadt, and Berlin from the late 19th century to the early 20th century. And it was developed differently from Art Nouveau in the rest of European countries as the Rococo style and the Baroque style of Germany were done so. The furniture designers of Art Nouveau pronounced their use of decorative motifs from nature with birds, flowers, insects, fish, even landscape represented, but the designers in Jugendstill made the elaborate curvilinear design simply stylized and abstract: the design of Art Nouveau was seen as the superfluity of the ornament but the design of Jugendstill was seen as the simplified lines and restrain of the ornament. Hence, Jugendstill was deeply related with the scientific and rational thought of Germany, and then, it was based on the Deutscher Werkbund found by Hermann Muthesius.

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