RT info:eu-repo/semantics/article T1 Isolation, characterization and biological action of type-1 ribosome-inactivating proteins from tissues of Salsola soda L. A1 Landi, Nicola A1 Ragucci, Sara A1 Citores González, Lucía A1 Clemente, Angela A1 Hussain, Hafiza Z. F. A1 Iglesias Álvarez, María del Rosario A1 Ferreras Rodríguez, José Miguel A1 Di Maro, Antimo K1 Toxicology K1 Proteins - Synthesis K1 Ribosomes - Structure K1 Proteínas - Síntesis K1 Molecular biology K1 Plant Sciences K1 Plantas comestibles K1 Biochemistry K1 Proteins - Purification K1 RNA K1 ARN K1 Antifungal agents K1 Salsola soda K1 Cytotoxicity K1 Citotoxicidad K1 2302.27 Proteínas K1 2302 Bioquímica K1 2415 Biología Molecular AB Ribosome-inactivating proteins (RIPs) are known as RNA N-glycosylases. They depurinate the major rRNA, damaging ribosomes and inhibiting protein synthesis. Here, new single-chain (type-1) RIPs named sodins were isolated from the seeds (five proteins), edible leaves (one protein) and roots (one protein) of Salsola soda L. Sodins are able to release Endo’s fragment when incubated with rabbit and yeast ribosomes and inhibit protein synthesis in cell-free systems (IC50 = 4.83–79.31 pM). In addition, sodin 5, the major form isolated from seeds, as well as sodin eL and sodin R, isolated from edible leaves and roots, respectively, display polynucleotide:adenosine glycosylase activity and are cytotoxic towards the Hela and COLO 320 cell lines (IC50 = 0.41–1200 nM), inducing apoptosis. The further characterization of sodin 5 reveals that this enzyme shows a secondary structure similar to other type-1 RIPs and a higher melting temperature (Tm = 76.03 ± 0.30 °C) and is non-glycosylated, as other sodins are. Finally, we proved that sodin 5 possesses antifungal activity against Penicillium digitatum. PB MDPI SN 2072-6651 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/61139 UL https://uvadoc.uva.es/handle/10324/61139 LA eng NO Toxins, 2022, Vol. 14, Nº. 8, 566 NO Producción Científica DS UVaDOC RD 24-nov-2024