RT Journal Article T1 Characterization of a new toxin from the entomopathogenicfungus Metarhizium anisopliae: the ribotoxin anisoplin A1 Olombrada, Miriam A1 Medina, Pilar A1 Budia, Flor A1 Gavilanes, José A1 Martínez del Pozo, Álvaro A1 García Ortega, Lucía AB Metarhizium anisopliae is an entomopathogenic fungus relevant in biotechnology with applications like malaria vector control. Studies of its virulence factors are therefore of great interest. Fungal ribotoxins are toxic ribonucleases with extraordinary efficiency against target ribosomes and suggested as potential insecticides. Here, we describe this ribotoxin characteristic activity in M. anisopliae cultures. Anisoplin has been obtained as a recombinant protein and further characterized. It is structurally similar to hirsutellin A, the ribotoxin from the entomopathogen Hirsutella thompsonii. Moreover, anisoplin shows the ribonucleolytic activity typical of ribotoxins and cytotoxicity against insect cells. How Metarhizium uses this toxin and possible applications are on perspective. PB De Gruyter SN 1431-6730 (Print), 1437-4315 (Online) YR 2017 FD 2017-01-01 LK https://hdl.handle.net/20.500.14352/17576 UL https://hdl.handle.net/20.500.14352/17576 LA eng NO Ministerio de Economía y Competitividad (MINECO) NO Universidad Complutense de Madrid DS Docta Complutense RD 30 abr 2024