University of Michigan

Nara Institute of Science and Technology

Ayyalusamy Ramamoorthy

Thirupathi Ravula

Nathaniel Z Hardin

Jun-ichi Kikuchi

Kazuma Yasuhara

Jin Arakida

Sarah J Cox

Bikash Sahoo

The disclosure generally relates generally to lipid nanodiscs, in particular to lipid nanodiscs formed from acryloyl-based copolymers. A lipid nanodisc according to the disclosure includes a lipid bilayer having a first hydrophilic face and a second hydrophilic face opposing the first hydrophilic face, and a hydrophobic edge between the opposing hydrophilic faces, and an acryloyl-based copolymer encircling the hydrophobic edge of the lipid bilayer. The acryloyl-based copolymer includes a first monomer unit having a pendant hydrophobic group and a second monomer unit having a pendant hydrophilic group. Methods of making and characterizing the lipid nanodiscs are also disclosed.

Lipid nanodisc formation by acryloyl-based copolymers

The disclosure generally relates to lipid nanodiscs, in particular to lipid nanodiscs formed from polymers. A lipid nanodisc according to the disclosure includes a lipid bilayer having a first hydrophilic face and a second hydrophilic face opposing the first hydrophilic face, and a hydrophobic edge between the opposing hydrophilic faces, and a polymer encircling the hydrophobic edge of the lipid bilayer. The polymer includes a first monomeric unit having a pendant hydrophobic group and a second monomeric unit having a backbone hydrophilic group. Methods of making and characterizing the lipid nanodiscs are also disclosed.

Lipid nanodisc formation by polymers having a pendant hydrophobic group

The disclosure provides a lipid nanodisc including a lipid bilayer having two opposing hydrophilic faces and a hydrophobic edge between the hydrophilic faces, and a copolymer encircling the hydrophobic edge of the lipid bilayer, the copolymer including a first monomeric unit including a pendant aromatic group, and a second monomeric unit including a pendant hydrophilic group, wherein the first monomeric unit and the second monomeric unit are present in the copolymer is a molar ratio ranging from 1:1 to 3:1 for the first monomeric unit:the second monomeric unit. The disclosure further provides a method of making the polymer-based lipid nanodiscs of the disclosure and methods of characterizing membrane proteins using the polymer-based lipid nanodiscs of the disclosure.

Polymer-based lipid nanodiscs and macrodiscs

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Ann Arbor, MI, United States of America

Ayyalusamy Ramamoorthy