Abstract
Specific non‐covalent interactions between aldose reductase (AR), its NADP+ cofactor and five inhibitors have been characterized by electrospray mass spectrometry (ES‐MS). These results indicated that the protein could be desorbed and maintained in the gas phase in a form very close to its native conformation. Collisionally induced dissociation (CID)‐MS and CID‐MS‐MS showed that the adenosine diphospbate part of the cofactor interacts strongly with AR. The relative stability of the ternary AR NADP+ inhibitor complexes was established and successfully correlated with the IC50, values. All inhibitors were shown to only bind to AR holoenzyme. These results are important for the field of drug development insofar as ES‐MS might provide a rapid and very sensitive method for the screening of potential drugs or for the identification of compounds displaying high binding affinity to a target biomolecule.
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Dates
Type | When |
---|---|
Created | 21 years, 1 month ago (July 16, 2004, 10:33 a.m.) |
Deposited | 1 year, 11 months ago (Aug. 30, 2023, 2:40 a.m.) |
Indexed | 1 year, 9 months ago (Nov. 15, 2023, 9:19 a.m.) |
Issued | 28 years, 7 months ago (Jan. 1, 1997) |
Published | 28 years, 7 months ago (Jan. 1, 1997) |
Published Online | 21 years, 1 month ago (July 16, 2004) |
Published Print | 28 years, 7 months ago (Jan. 1, 1997) |
@article{Potier_1997, title={Study of Non‐Covalent Enzyme‐Inhibitor Complexes of Aldose Reductase by Electrospray Mass Spectrometry}, volume={243}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1997.0274a.x}, DOI={10.1111/j.1432-1033.1997.0274a.x}, number={1–2}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={Potier, Noelle and Barth, Patrick and Tritsch, Denis and Biellmann, Jean‐François and Van Dorsselaer, Alain}, year={1997}, month=jan, pages={274–282} }