• 제목/요약/키워드: Biology and Life Science

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Molecular Characterization and Tissue-specific Expression of a Novel FKBP38 Gene in the Cashmere Goat (Capra hircus)

  • Zheng, X.;Hao, X.Y.;Chen, Y.H.;Zhang, X.;Yang, J.F.;Wang, Z.G.;Liu, D.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권6호
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    • pp.758-763
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    • 2012
  • As a member of a subclass of immunophilins, it is controversial that FKBP38 acts an upstream regulator of mTOR signaling pathway, which control the process of cell-growth, proliferation and differentiation. In order to explore the relationship between FKBP38 and mTOR in the Cashmere goat (Capra hircus) cells, a full-length cDNA was cloned (GenBank accession number JF714970) and expression pattern was analyzed. The cloned FKBP38 gene is 1,248 bp in length, containing an open reading frame (ORF) from nucleotide 13 to 1,248 which encodes 411 amino acids, and 12 nucleotides in front of the initiation codon. The full cDNA sequence shares 98% identity with cattle, 94% with horse and 90% with human. The putative amino acid sequence shows the higher homology which is 98%, 97% and 94%, correspondingly. The bioinformatics analysis showed that FKBP38 contained a FKBP_C domain, two TPR domains and a TM domain. Psite analysis suggested that the ORF encoding protein contained a leucine-zipper pattern and a Prenyl group binding site (CAAX box). Tissue-specific expression analysis was performed by semi-quantitative RT-PCR and showed that the FKBP38 expression was detected in all the tested tissues and the highest level of mRNA accumulation was detected in testis, suggesting that FKBP38 plays an important role in goat cells.

Purification, crystallization and X-ray diffraction of heparan sulfate bounded human RAGE

  • Park, Jun bae;Yoo, Youngki;Ong, Belinda Xiang Yu;Kim, Juyeon;Cho, Hyun-Soo
    • Biodesign
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    • 제5권3호
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    • pp.122-125
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    • 2017
  • Receptor for advanced glycation end products (RAGE) is one of the single transmembrane domain containing receptors and causes various inflammatory diseases including diabetes and atherosclerosis. RAGE extracellular domain has three consecutive IgG-like domains (V-C1-C2 domain) which interact with various soluble ligands including heparan sulfate or HMGB1. Studies have shown that each ligand induces different oligomeric forms of RAGE which results in a ligand-specific signal transduction. The structure of mouse RAGE bound to heparan sulfate has been previously determined but the electron density map of heparan sulfate was too ambiguous that the exact position of heparin sulfate could not be defined. Furthermore, the complex structure of human RAGE and heparin sulfate still remains elusive. Therefore, to determine the structure, human RAGE was overexpressed using bacterial expression system and crystallized using the sitting drop method in the condition of 0.1 M sodium acetate trihydrate pH 4.6, 8 % (w/v) polyethylene glycol 4,000 at 290 K. The crystal diffracted to 3.6 Å resolution and the space group is C121 with unit cell parameters a= 206.04 Å, b= 68.64 Å, c= 98.73 Å, α= 90.00°, β= 90.62°, γ= 90.00°.

Arabidopsis Raf-Like Kinase Raf10 Is a Regulatory Component of Core ABA Signaling

  • Nguyen, Quy Thi Cam;Lee, Sun-ji;Choi, Seo-wha;Na, Yeon-ju;Song, Mi-ran;Hoang, Quyen Thi Ngoc;Sim, Seo Young;Kim, Min-Sik;Kim, Jeong-Il;Soh, Moon-Soo;Kim, Soo Young
    • Molecules and Cells
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    • 제42권9호
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    • pp.646-660
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    • 2019
  • Abscisic acid (ABA) is a phytohormone essential for seed development and seedling growth under unfavorable environmental conditions. The signaling pathway leading to ABA response has been established, but relatively little is known about the functional regulation of the constituent signaling components. Here, we present several lines of evidence that Arabidopsis Raf-like kinase Raf10 modulates the core ABA signaling downstream of signal perception step. In particular, Raf10 phosphorylates subclass III SnRK2s (SnRK2.2, SnRK2.3, and SnRK2.6), which are key positive regulators, and our study focused on SnRK2.3 indicates that Raf10 enhances its kinase activity and may facilitate its release from negative regulators. Raf10 also phosphorylates transcription factors (ABI5, ABF2, and ABI3) critical for ABA-regulted gene expression. Furthermore, Raf10 was found to be essential for the in vivo functions of SnRK2s and ABI5. Collectively, our data demonstrate that Raf10 is a novel regulatory component of core ABA signaling.

Identification of a Genetic Locus Related to Antivirus Production in Pseudomonas fluorescence strain Gpf01 Against Cucumber mosaic virus

  • Cho, Sae-Youll;Lee, Seon-Hwa;Park, Su-Jin;Choi, Kyu-Up;Cho, Jun-Mo;Hur, Jang-Hyun;Shrestha, Anupama;Lim, Chun-Keun
    • The Plant Pathology Journal
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    • 제25권1호
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    • pp.77-85
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    • 2009
  • Pseudomonas fluorescens strain Gpf01, isolated from ginseng rhizosphere showed antiviral activity against Cucumber mosaic virus, when tested in a local host of CMV, Chenopodium amaranticolor. Transposon mutant library of Gpf01 was prepared using pGS9::Tn5 and the mutant Gpf01-RS19 was found to loose antiviral production. We developed primers from the flanking region of Tn5 and found a cosmid clone pAV1123, harboring 1.2 kb antiviral compound producing (avcf01) locus. When a sub-clone pPH9, which carried 9.3 kb region of pAV1123, was introduced into antivirus deficient P. fluorescens wild type strain B16, it exhibited antiviral activity. Using Tn3-gus mutagenesis and complementation analysis, it was found that the genes related to antiviral activity production resided in a 9.3 kb HindIII-HindIII fragment of pAV1123, indicating that the plasmid carries an essential genes promoting antiviral activity.