Development of an engineered Saccharomyces cerevisiae strain for production of a Man9GlcNAc2 glycan and glycosylated protein substrates for glycosidase and glycosyltranferase activity assays
Seonghun Kim, Doo-Byoung Oh, Hyun Ah Kang, Ohsuk Kwon
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192695
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원문정보
초록
영어
Yeasts have been extensively studied as model organisms to elucidate cellular processes and their mechanism in lower eukaryotes. Consequently, several powerful genetic tools have been developed to engineer yeast and improve its utility. Although native hyper-mannose yeast glycosylation is not suitable, high-mannose core glycan producing yeast is an attractive for production of viral vaccines containing Man9GlcNAc2 (Man9) and Man8GlcNAc2 (Man8) structures. To study the production of glycoproteins for putative viral vaccine target and the screening system for novel glycosidase and glycosyltransferase, we generated a mutant yeast strain and constructed glycosylated glycoprotein substrates. Both och1 and mnn1 genes of Saccharomyces cerevisiae, which are involved in biosynthesis of outer high mannose chains in the N-glycosylation pathway, were deleted. Glycan profiling revealed that N-glycans produced by this mutant were almost exclusively Man8GlcNAc2. In addition, we are constructing to glycosylated protein substrates, based on yeast expression system. In this presentation, our resources, including glycosyltransferase and glycosidase libraries as well as enzymatic tools for N-glycanengineering, will be also presented for glycoscience and glycoengineering.
저자
Seonghun Kim [ Microbe-based Fusion Technology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience & Biotechnology, Jeongeup 580-185, Korea ]
Doo-Byoung Oh [ Integrative Omics Research Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon ]
Hyun Ah Kang [ Department of Life Science, College of Natural Science, Chung-Ang University, Seoul ]
Ohsuk Kwon [ Integrative Omics Research Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon ]
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.