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Asymmetric maltose neopentyl glycol amphiphiles for a membrane protein study: effect of detergent asymmetricity on protein stability.


ABSTRACT: Maintaining protein stability in an aqueous solution is a prerequisite for protein structural and functional studies, but conventional detergents have increasingly showed limited ability to maintain protein integrity. A representative novel agent, maltose neopentyl glycol-3 (MNG-3), has recently substantially contributed to membrane protein structural studies. Motivated by the popular use of this novel agent, we prepared asymmetric versions of MNG-3 and evaluated these agents with several membrane proteins including two G protein-coupled receptors in this study. We found that some new MNGs were significantly more effective than MNG-3 at preserving protein integrity in the long term, suggesting that these asymmetric MNGs will find a wide use in membrane protein studies. In addition, this is the first study addressing the favorable effect of detergent asymmetric nature on membrane protein stability.

SUBMITTER: Bae HE 

PROVIDER: S-EPMC6346398 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Asymmetric maltose neopentyl glycol amphiphiles for a membrane protein study: effect of detergent asymmetricity on protein stability.

Bae Hyoung Eun HE   Du Yang Y   Hariharan Parameswaran P   Mortensen Jonas S JS   Kumar Kaavya K KK   Ha Betty B   Das Manabendra M   Lee Hyun Sung HS   Loland Claus J CJ   Guan Lan L   Kobilka Brian K BK   Chae Pil Seok PS  

Chemical science 20181105 4


Maintaining protein stability in an aqueous solution is a prerequisite for protein structural and functional studies, but conventional detergents have increasingly showed limited ability to maintain protein integrity. A representative novel agent, maltose neopentyl glycol-3 (MNG-3), has recently substantially contributed to membrane protein structural studies. Motivated by the popular use of this novel agent, we prepared asymmetric versions of MNG-3 and evaluated these agents with several membra  ...[more]

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