2008 Eastern Asian Glycoscience Symposium (2008.11)바로가기
페이지
pp.61-61
저자
Jeong Gu Kang, Jin Won Cho
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192330
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원문정보
초록
영어
About 2~5% of extra-cellular glucose is converted into UDP-GlcNAc through hexosamine biosynthesis pathway(HBP). UDP-GlcNAc could be used for O-GlcNAc modification of nucleo-cytoplasmic proteins by O-GlcNAc transferase(OGT). At glucose deprivation condition, generally, the levels of UDP-GlcNAc and O-GlcNAc modification of proteins decrease. However, in A549, non-small cell lung carcinoma (NSCLC), O-GlcNAc modification increased in response to glucose deprivation in a time dependant manner. On the other hand, the levels of OGT and O-GlcNAcase(OGA) were not changeable at this condition. Moreover the activity of GFAT, the first and rate-limiting enzyme in the HBP, increased steadily but the activity of OGA decreased in glucose starvation condition. Also we found that O-GlcNAc modification increased in response to glucose starvation through degradation of glycogen in several cell lines including A549 which store glycogen. We used sWGA precipitation method and MALDI -MS to identify the proteins in which O-GlcNAc modification increased at glucose deprivation condition. In view of the results so far achieved, we could identify several cytoskeletons, heat shock proteins, ribosomal proteins etc. we will focus on revealing how the O-GlcNAc modification protects some proteins from degradation in response to glucose deprivation.
저자
Jeong Gu Kang [ Department of Biology, Yonsei University ]
Jin Won Cho [ Department of Biology, Yonsei University ]
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 517DDC 614
이 권호 내 다른 논문 / 한국당과학회 학술대회 2008 Eastern Asian Glycoscience Symposium