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Isolation and characterization of AtXBP1, a functional homolog of XBP1/Hac1, in Arabidopsis

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  • 발행기관
    한국당과학회 바로가기
  • 간행물
    한국당과학회 학술대회 바로가기
  • 통권
    2009 한국 당과학회 하계 학술대회 (2009.06)바로가기
  • 페이지
    pp.31-31
  • 저자
    Wahyu Indra Fanata, Jeong Chan Moon, Joo Mi Jeon, Bo Hwa Son, In Jung Jung, Jae Yong Yoo, Jae Ho Cha, Je Hein Kim, Rikno Harmoko, Ki Seong Ko, Sang Yeol Lee, Kyun Oh Lee
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A192429

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원문정보

초록

영어
A number of environmental and physiological stimuli, such as perturbation in calcium homeostasis, shift of endoplasmic reticulum (ER) redox potential, altered glycosylation and elevated protein synthesis lead to accumulation of unfolded or misfolded proteins in the ER lumen, and subsequently impose stress to ER. Such condition activates a set of signaling pathway termed the unfolded protein response (UPR). To date, a large number of components for UPR signaling pathway has been isolated and characterized in yeast or mammals. Plants also show a quite similar response compared to the UPR in yeast and mammals when they are exposure to the stimuli. However, the plant UPR and its signaling pathway are rarely studied. In this report, we present our research regarding to the characterization of a UPR signaling component AtXBP1 in Arabidopsis. AtXBP1 is alternatively spliced generating two isoforms; long isoform (AtXBP1L) and short isoform (AtXBP1S). Overexpression of AtXBP1S has shown to up regulate the expression of ER stress responsive genes. Futhermore, expression of the luciferase gene, driven by BiP3 promoter, under the ER stress condition has been significantly decreased in the atxbp1 mutant. Electrophoretic mobility shift assay revealed that only AtXBP1S is able to interact with putative XBP1 binding cis-elements in AtBiP2 and AtBiP3 promoters. These results support our hypothesis that the AtXBP1 is an important regulatory component in the UPR signaling in Arabidopsis. [Supported by BK21 program]

저자

  • Wahyu Indra Fanata [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Jeong Chan Moon [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Joo Mi Jeon [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Bo Hwa Son [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • In Jung Jung [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Jae Yong Yoo [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Jae Ho Cha [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Je Hein Kim [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Rikno Harmoko [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Ki Seong Ko [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Sang Yeol Lee [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]
  • Kyun Oh Lee [ Division of Applied Life Science (BK21 Program), EB-NCRC and PMBBRC, Gyeongsang National University ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국당과학회 [Korean Society for Glycoscience]
  • 설립연도
    2006
  • 분야
    의약학>약학
  • 소개
    본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.

간행물

  • 간행물명
    한국당과학회 학술대회
  • 간기
    연간
  • 수록기간
    2006~2022
  • 십진분류
    KDC 517 DDC 614

이 권호 내 다른 논문 / 한국당과학회 학술대회 2009 한국 당과학회 하계 학술대회

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