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. 2019 Jun 1;17(6):325. doi: 10.3390/md17060325

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© 2019 by the authors.

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 (http://creativecommons.org/licenses/by/4.0/).

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Representative sea anemone toxins with an ATX III motif. (A) Alignment of representative sea anemone toxins that adopt the ATX III motif. Disulfide bridge connectivities are indicated above the sequence alignment. Amino acid identities (black boxes) and similarities (grey boxes) are shown. The representative toxin sequences shown are ATX III (δ-AITX-Avd2a; UniProt P01535), Av7 (δ-AITX-Avd2b 3; UniProt C3TS10), and Av10 (δ-AITX-Avd2c; UniProt C3TS07). (B) 3D structure of the sea anemone toxin Av3 (PDB accession code 1ANS). The three disulfide bonds are represented by orange tubes.