Bo Hwa Son, Wahyu Indra Fanata, Jae Yong Yoo, Rikno Harmoko, Ki Seong Ko, Nirmal Kumar Ramasamy, Kyung Hwa Kim, Thiyagarajan Thulasinathan, Sang Yeol Lee, Kyun Oh Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192894
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원문정보
초록
영어
In plants, glycoproteins have been implicated in a wide variety of cellular processes including production of cell walls, pollination, pathogen defence and cell-to-cell communication. In addition, they have attracted considerable interest from the medical field as the main cause of food and pollen allergies. N-glycosylation is a complex process that encompasses the biosynthesis and modification of sugar moieties in the endoplasmic reticulum (ER) and Golgi. The core oligosaccharide Glc3Man9GlcNAc2 is assembled by a series of membrane-bound glycosyltransferases as the lipid carrier dolichylpyrophosphate-linked glycan in the endoplasmic reticulum (ER). The first step of this assembly pathway on the ER luminal side is mediated by ALG3 (asparagine-linked glycosylation 3), which is a highly conserved reaction among eukaryotic cells. In Arabidopsis ALG3 mutant (alg3), an immature lipid-linked oligosaccharide structure, M5ER, was synthesized and efficiently processed into complex-type glycans. Although no high-mannose-type glycoproteins are detected in alg3 plants, these plants do not show a growth phenotype under normal growth conditions. However, the glycosylation abnormalities result in activation of marker genes diagnostic of the unfolded protein response and alg3 mutant showed a stress sensitive phenotype. These results indicate that ALG3 is a critical factor for correct N-glycosylation of proteins and is involved in the ER stress response.
저자
Bo Hwa Son [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Wahyu Indra Fanata [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Jae Yong Yoo [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Rikno Harmoko [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Ki Seong Ko [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Nirmal Kumar Ramasamy [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Kyung Hwa Kim [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Thiyagarajan Thulasinathan [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Sang Yeol Lee [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National University ]
Kyun Oh Lee [ Division of Applied Life Science (BK21) and PMBBRC, Gyeongsang National 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.