One-step construction of circularized nanodiscs using SpyCatcher-SpyTag

Shanwen Zhang, Qian Ren, Scott J. Novick, Timothy S. Strutzenberg, Patrick R. Griffin () and Huan Bao ()
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Shanwen Zhang: The Scripps Research Institute
Qian Ren: The Scripps Research Institute
Scott J. Novick: The Scripps Research Institute
Timothy S. Strutzenberg: The Scripps Research Institute
Patrick R. Griffin: The Scripps Research Institute
Huan Bao: The Scripps Research Institute

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Circularized nandiscs (cNDs) exhibit superb monodispersity and have the potential to transform functional and structural studies of membrane proteins. In particular, cNDs can stabilize large patches of lipid bilayers for the reconstitution of complex membrane biochemical reactions, enabling the capture of crucial intermediates involved in synaptic transmission and viral entry. However, previous methods for building cNDs require multiple steps and suffer from low yields. We herein introduce a simple, one-step approach to ease the construction of cNDs using the SpyCatcher-SpyTag technology. This approach increases the yield of cNDs by over 10-fold and is able to rapidly generates cNDs with diameters ranging from 11 to over 100 nm. We demonstrate the utility of these cNDs for mechanistic interrogations of vesicle fusion and protein-lipid interactions that are unattainable using small nanodiscs. Together, the remarkable performance of SpyCatcher-SpyTag in nanodisc circularization paves the way for the use of cNDs in membrane biochemistry and structural biology.

Date: 2021
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DOI: 10.1038/s41467-021-25737-7

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