Suena Ji, Jeong Gu Kang, Sang Yoon Park, Eunah Kim, JooHun Lee, Young J. Oh, Jin Won Cho
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192624
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원문정보
초록
영어
O-linked beta-N-acetylglucosamine (O-GlcNAc) modification is one of the post-translational modifications. Protein O-GlcNAcylation is reversibly regulated by O-GlcNAcase (OGA) and O-GlcNAc transferase (OGT). More than 800 proteins as diverse as transcription factors, enzymes, cytoskeletal proteins, ribosomal proteins and chaperones have been identified to be modified with O-GlcNAc. Thus, protein O-GlcNAcylation appears to be involved in many different cellular activities regulating in transcription, translation, protein degradation, protein localization and protein-protein interaction. Moreover, O-GlcNAc modification has important and global effects on various cellular signal pathways because of the reciprocal relationship between O-GlcNAc and O-phosphate. Recently, O-GlcNAc modification, as a sensor of cellular states, has been implicated in human diseases including diabetes, neurodegenerative diseases and cancer. We found that O-GlcNAcylation pattern is changed during all-trans retinoic acid (tRA)-induced neutrite outgrowth in the MN9D cell line. We identified several O-GlcNAcylated proteins including alpha- and beta-tubulin and detected O-GlcNAc modified regions between residues 173 and 185 of tubulin and between residues 216 and 238 of beta-tubulin by using mass spectrometry. Also, We found that overexpressing OGT or introducing OGA inhibitor such as NButGT, PUGNAc, increases O-GlcNAcylation on alpha-tubulin, which ultimately leads to inhibition of tubulin polymerization. Accordingly, Our data indicate that the O-GlcNAcylation of tubulin negatively regulates microtubule formation
저자
Suena Ji [ Department of Biology, Yonsei University ]
Jeong Gu Kang [ Department of Biology, Yonsei University ]
Sang Yoon Park [ Department of Biology, Yonsei University ]
Eunah Kim [ Department of Integrated OMICS for Biomedical Sciences, Graduate School, Yonsei University ]
Poster presenter
JooHun Lee [ Department of Biology, Yonsei University ]
Young J. Oh [ Department of Biology, Yonsei University ]
Jin Won Cho [ Department of Biology, Yonsei University, Department of Integrated OMICS for Biomedical Sciences, Graduate School, Yonsei University ]
Correspondence
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.