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Meng Li
복잡계 자기조립 연구단
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Autophagy Caught in the Act: A Supramolecular FRET Pair Based on an Ultrastable Synthetic Host-Guest Complex Visualizes Autophagosome-Lysosome Fusion

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Title
Autophagy Caught in the Act: A Supramolecular FRET Pair Based on an Ultrastable Synthetic Host-Guest Complex Visualizes Autophagosome-Lysosome Fusion
Author(s)
Meng Li; Lee, A; Kyung Lock Kim; James Murray; Annadka Shrinidhi; Sung, G; Kyeng Min Park; Kimoon Kim
Publication Date
2018-02
Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.57, no.8, pp.2120 - 2125
Publisher
WILEY-V C H VERLAG GMBH
Abstract
A supramolecular FRET pair based on the ultrahigh binding affinity between cyanine 3 conjugated cucurbit[7]uril (CB[7]-Cy3) and cyanine 5 conjugated adamantylamine (AdA-Cy5) was exploited as a new synthetic tool for imaging cellular processes in live cells. Confocal laser scanning microscopy revealed that CB[7]-Cy3 and AdA-Cy5 were intracellularly translocated and accumulated in lysosomes and mitochondria, respectively. CB[7]-Cy3 and AdA-Cy5 then formed a host-guest complex, reported by a FRET signal, as a result of the fusion of lysosomes and mitochondria. This observation not only indicated that CB[7] forms a stable complex with AdA in a live cell, but also suggested that this FRET pair can visualize dynamic organelle fusion processes, such as those involved in the degradation of mitochondria through autophagy (mitophagy), by virtue of its small size, chemical stability, and ease of use
URI
https://pr.ibs.re.kr/handle/8788114/5464
ISSN
1433-7851
Appears in Collections:
Center for Self-assembly and Complexity(복잡계 자기조립 연구단) > Journal Papers (저널논문)
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