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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 251 - 259 (9page)
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Transglutaminase 2 (TGase2) is involved in a variety of cellular processes and diseases via its transamidase and kinase activities, which are regulated by conformational changes induced by the binding of nucleotides and divalent cations. However, due to the lack of an appropriate assay system, the function of critical amino acid residues in the regulation of both activities is unclear. Thus, we designed site-directed TGase2 mutants that were then used in protein arrays to investigate the effects of the mutations on the regulation of TGase2 transamidase and kinase activities. We found that the Lys444Ala mutation, but not the Arg580Lys and Lys663Ala mutations, completely inhibited the transamidase activity. Additionally, the mutations at Lys444 and Lys663 inhibited the kinase activity by 27% and 48%, respectively, but the mutations at Cys277 and Arg580 had no effect. Furthermore, a kinetic analysis of the transamidation reaction revealed that the Lys663Ala mutation increased the affinity of TGase2 for the substrate fibrinogen. Thus, this array-based approach would be helpful for investigation of amino acids responsible for regulation of the TGase2 transamidase and kinase activities and the pathogenesis of TGase2- mediated diseases.
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참고문헌 (27)
참고문헌 신청
권미혜 / 2009 / Quantitative and Rapid Analysis of Transglutaminase Activity Using Protein Arrays in Mammalian Cells / Molecules and Cells 27(3):337~343
Nurminskaya, M.V. / 2012 / Cellular functions of tissue transglutaminase / Int. Rev. Cell Mol. Biol 294:1~97
Mishra, S. / 2006 / Phosphorylation of transglutaminase 2 by PKA at Ser216 creates 14-3-3binding sites / Biochem. Biophys. Res. Commun 347:1166~1170
Park, D. / 2010 / Transglutaminase 2:a multi-functional protein in multiple subcellular compartments / Amino Acids 39:619~631
Fesus, L. / 2002 / Transglutaminase 2: an enigmatic enzyme with diverse functions / Trends Biochem. Sci 27:534~539
Nurminskaya, M.V. / 2012 / Cellular functions of tissue transglutaminase / Int. Rev. Cell Mol. Biol 294:1~97
Mishra, S. / 2006 / Phosphorylation of transglutaminase 2 by PKA at Ser216 creates 14-3-3binding sites / Biochem. Biophys. Res. Commun 347:1166~1170
Park, D. / 2010 / Transglutaminase 2:a multi-functional protein in multiple subcellular compartments / Amino Acids 39:619~631
Fesus, L. / 2002 / Transglutaminase 2: an enigmatic enzyme with diverse functions / Trends Biochem. Sci 27:534~539
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