Microfluidic platform for efficient Nanodisc assembly, membrane protein incorporation, and purification

Area of Science:

• Biochemistry
• Biophysics
• Membrane Protein Research

Background:

• Integral membrane proteins are challenging to study due to poor solubility and activity.
• Nanodiscs offer a native-like environment for membrane protein studies but require extensive optimization.
• Current Nanodisc formation protocols are time-consuming and material-intensive.

Purpose of the Study:

• To develop a microfluidic platform for efficient Nanodisc assembly and membrane protein incorporation.
• To reduce the time and sample volume required for Nanodisc formation and screening.
• To enable versatile optimization of membrane protein incorporation conditions.

Main Methods:

• Development of a microfluidic platform for Nanodisc formation and purification.
• Incorporation of functional membrane proteins, specifically Cytochrome P450, into Nanodiscs.
• Utilizing microfluidic gradients to screen diverse formation conditions and Nanodisc compositions.

Main Results:

• Successful assembly and purification of Nanodiscs in under one hour.
• Demonstrated incorporation of functional membrane proteins into Nanodiscs.
• Spectroscopic evidence confirmed the functional active site of incorporated Cytochrome P450.

Conclusions:

• The microfluidic platform significantly accelerates Nanodisc assembly and membrane protein incorporation.
• This technology provides a versatile tool for optimizing membrane protein studies.
• The platform facilitates efficient screening of conditions for Nanodisc formation and protein integration.