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Characterization of CalS9 in the Biosynthesis of UDP-xylose and the Production of Xylosyl-attached Hybrid Compound

첫 페이지 보기
  • 발행기관
    한국당과학회 바로가기
  • 간행물
    한국당과학회 학술대회 바로가기
  • 통권
    2009 한국 당과학회 하계 학술대회 (2009.06)바로가기
  • 페이지
    pp.39-39
  • 저자
    Dinesh Simkhada, Tae-Jin Oh, Binod Babu Pangeni Hei Chan Lee, Kwangkyoung Liou, Jae Kyung Sohng
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A192435

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원문정보

초록

영어
The deoxysugar biosynthesis gene cluster of calicheamicin contains calS9, which encodes UDP-D-glucose decarboxylase and catalyzes the conversion of UDP-glucuronic acid to UDP-xylose in the presence of NAD+ cofactor. The calS9 was cloned in pET32a(+) and expressed in Escherichia coli BL21(DE3). An enzymatic assay was carried out with the purified CalS9. A one-pot assay was also developed using thymidyl kinase, acetyl kinase, CalS7 and CalS8 to convert UMP to UDP-xylose via UDP-D-glucose and UDP-glucuronic acid. The reaction products were extracted and analyzed by HPLC and ESI-MS for UDP-D-glucose, UDP-glucuronic acid and UDP-xylose, respectively. The deoxysugar biosynthesis of Streptomyces sp. KCTC 0041BP was inactivated by homologous recombination and the S. sp. GerSM2 mutant, which could not produce dihydrochalcomycin, was obtained. calS7, calS8 and calS9 genes were cloned in integrative plasmid pSET152 to generate pBPDS, which was heterologously expressed in S. sp. GerSM2. Finally, the novel glycosylated product, 5-O-xylosyl-chalconolide derivative, in the conjugal transformants was analyzed by LC-MS.

키워드

Biosynthesis Calicheamicin Dihydrochalcomycin Streptomyces UDP-xylose 5-O-xylosyl-chalconolide.

저자

  • Dinesh Simkhada [ Institute of Biomolecule Reconstruction (iBR), Department of Pharmaceutical Engineering, SunMoon University ]
  • Tae-Jin Oh [ Institute of Biomolecule Reconstruction (iBR), Department of Pharmaceutical Engineering, SunMoon University ]
  • Binod Babu Pangeni Hei Chan Lee [ Institute of Biomolecule Reconstruction (iBR), Department of Pharmaceutical Engineering, SunMoon University ]
  • Kwangkyoung Liou [ Institute of Biomolecule Reconstruction (iBR), Department of Pharmaceutical Engineering, SunMoon University ]
  • Jae Kyung Sohng [ Institute of Biomolecule Reconstruction (iBR), Department of Pharmaceutical Engineering, SunMoon 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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