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-   -   [NMR paper] Binding of a small molecule water channel inhibitor to aquaporin Z examined by solid-state MAS NMR. (http://www.bionmr.com/forum/journal-club-9/binding-small-molecule-water-channel-inhibitor-aquaporin-z-examined-solid-state-mas-nmr-26176/)

nmrlearner 06-20-2018 08:56 PM

Binding of a small molecule water channel inhibitor to aquaporin Z examined by solid-state MAS NMR.
 
Binding of a small molecule water channel inhibitor to aquaporin Z examined by solid-state MAS NMR.

Related Articles Binding of a small molecule water channel inhibitor to aquaporin Z examined by solid-state MAS NMR.

J Biomol NMR. 2018 Jun 18;:

Authors: Phillips M, To J, Yamazaki T, Nagashima T, Torres J, Pervushin K

Abstract
Aquaporins are integral membrane proteins that facilitate water flow across biological membranes. Their involvement in multiple physiological functions and disease states has prompted intense research to discover water channel activity modulators. However, inhibitors found so far are weak and/or lack specificity. For organic compounds, which lack of*high electron-dense atoms, the identification of binding sites is even more difficult. Nuclear magnetic resonance spectroscopy (NMR) requires large amounts of the protein, and expression and purification of mammalian aquaporins in large quantities is a difficult task. However, since aquaporin Z (AqpZ) can be purified and expressed in good quantities and has a high similarity to human AQP1 (~ 40% identity), it can be used as a model for studying the structure and function of human aquaporins. In the present study, we have used solid-state MAS NMR to investigate the binding of a lead compound [1-(4-methylphenyl)1H-pyrrole-2,5-dione] to AqpZ, through mapping of chemical shift perturbations in the presence of the compound.


PMID: 29916035 [PubMed - as supplied by publisher]



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