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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
3D representation of the location of the best poses of coumarins in the MepA efflux pump binding site: (A) superior view; (B) side view. C1—blue; C2—pink; C3 (neutral)—green; C3 (ionized)—red; C4 (neutral)—beige; C4 (ionized)—white.