Solid-State NMR of Membrane Proteins in Lipid Bilayers: To Spin or Not To Spin?

Author(s):  
Tata Gopinath ◽  
Daniel Weber ◽  
Songlin Wang ◽  
Erik Larsen ◽  
Gianluigi Veglia
2021 ◽  
Author(s):  
Kai Xue ◽  
Kumar Tekwani Movellan ◽  
Xizhou Cecily Zhang ◽  
Eszter E. Najbauer ◽  
Marcel C. Forster ◽  
...  

Solid-state NMR (ssNMR) is a versatile technique that can be used for the characterization of various materials, ranging from small molecules to biological samples, including membrane proteins, as reviewed here.


2020 ◽  
Vol 73 (3) ◽  
pp. 246 ◽  
Author(s):  
Daniel K. Weber ◽  
Gianluigi Veglia

Oriented sample solid-state NMR (OS-ssNMR) spectroscopy allows the direct determination of the structure and topology of membrane proteins reconstituted into aligned lipid bilayers. Although OS-ssNMR theoretically has no upper size limit, its application to multi-span membrane proteins has not been established because most studies have been restricted to single- or dual-span proteins and peptides. Here, we present a critical assessment of the application of this method to multi-span membrane proteins. We used molecular dynamics simulations to back-calculate [15N-1H] separated local field (SLF) spectra from a G protein-coupled receptor (GPCR) and show that fully resolved spectra can be obtained theoretically for a multi-span membrane protein with currently achievable resonance linewidths.


Author(s):  
Vivien Yeh ◽  
Boyan B. Bonev

Membranes of cells are active barriers, in which membrane proteins perform essential remodelling, transport and recognition functions that are vital to cells. Membrane proteins are key regulatory components of cells and represent essential targets for the modulation of cell function and pharmacological intervention. However, novel folds, low molarity and the need for lipid membrane support present serious challenges to the characterisation of their structure and interactions. We describe the use of solid state NMR as a versatile and informative approach for membrane and membrane protein studies, which uniquely provides information on structure, interactions and dynamics of membrane proteins. High resolution approaches are discussed in conjunction with applications of NMR methods to studies of membrane lipid and protein structure and interactions. Signal enhancement in high resolution NMR spectra through DNP is discussed as a tool for whole cell and interaction studies.


2015 ◽  
Vol 119 (46) ◽  
pp. 14574-14583 ◽  
Author(s):  
Evgeniy S. Salnikov ◽  
Hiba Sarrouj ◽  
Christian Reiter ◽  
Christopher Aisenbrey ◽  
Armin Purea ◽  
...  

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