Osphocholine for this group of detergents, or the proper names to refer to unique alkyl chain lengths with ten (decyl phosphocholine), 12 (dodecyl phosphocholine, abbreviated as DPC), 14 (tetradecyl phosphocholine), and 16 (hexadecyl phosphocholine) carbons. These are also identified beneath their commercial name foscholine (FC), including FC10, FC12, FC14, and FC16. Forty years after the first applications ofDOI: 10.1021/acs.chemrev.7b00570 Chem. Rev. 2018, 118, 3559-Chemical Testimonials alkyl phosphocholine detergents in structural biology,36 a sizable number of MPs have already been studied in these micelles. From the sheer statistics, alkyl phosphocholines have turned out to be pretty successful, particularly in solution-state NMR spectroscopy. Figure 2 shows the relative contributions of distinctive methods to solving MP structures, along with the surfactants which have been utilized to decide these structures. Dodecyl phosphocholine has been utilised to obtain ca. 40 on the MP structures determined by solution-state NMR, making it essentially the most regularly employed detergent for this strategy. Remarkably, however, it has been successful in producing only 1 of the MP structures determined by crystallography. The specifications for solutionstate NMR and crystallography are fairly distinct. For the former, the major criterion for choosing a specific detergent is definitely the solubility from the protein, and high resolution in the resulting NMR spectra. For the latter, restricting the conformational space in resolution is important for crystallization. Hugely versatile proteins could possibly be extremely favorable for solution-state NMR and result in well-resolved spectra; but, they probably won’t crystallize. The powerful bias toward alkyl phosphocholine in solution-state NMR and against this class of detergents in crystallography may possibly indicate some bias toward much more dynamic proteins being studied by solution-state NMR, or it may recommend that DPC interferes with crystallization. In any study of MPs in artificial lipid-mimicking environments, one requirements to address the query of the biological relevance of the sample. Are MPs in alkyl phosphocholine detergents inside a conformation that resembles their state in a native membrane, or, conversely, do these detergents introduce systematic structural perturbations Are MPs functional in alkyl phosphocholine detergents, and how do various detergents compare within this respect Answering these questions normally terms is hard, simply because MPs vastly differ in their (��)-Citronellol Cancer topology (-helical, -barrel), size, and complexity. Nonetheless, from the huge body of data collected over the final four decades, general trends emerge with regards to the functionality of this extensively applied class of detergents. The aim of this Critique is always to deliver an overview in the properties, strengths, and weaknesses of alkyl phosphocholine detergents for MP research. This Evaluation is organized as follows. We very first recapitulate the properties of lipid bilayer membranes and their interactions with MPs. We then discuss how detergents differ from lipids, and how the MP interactions are thereby altered. In section 3, we focus on obtainable data for the functionality of MPs in alkyl phosphocholine detergents. Section four discusses in detail quite a few examples of experimental research of -helical and -barrel MPs and reveals how alkyl phosphocholines retain or distort the native structure, interactions, and dynamics. Section five discusses how molecular dynamics (MD) simulations contribute to our underst.
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