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. 2018 Jun 29;8:9818. doi: 10.1038/s41598-018-28135-0

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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V. aspis and V. berus venoms display phospholipase A2 activity in vitro. (A) SDS-Page analysis showing the composition of V. aspis and V. berus venoms (1 µg per lane). Both venoms display a band around 14 kDa, typical of the phospholipase component. β-BTx, a neurotoxic phospholipase purified from Bungarus multicinctus (1 µg) is used as a reference. (B) PLA₂ activities of V. aspis (10 ng, red triangles) and V. berus (10 ng, green triangles) venoms with respect to purified β-BTx (10 ng, blue circles). The activity of a purified PLA₂ from Bee (10 ng, orange squares) is also shown as internal control of the assay. Traces are representative of a typical experiment done three times.