Maf/ham1-like pyrophosphatases of non-canonical nucleotides are host-specific partners of viral RNA-dependent RNA polymerases. - Valli, Adrian A.; García López, Rafael; Ribaya, María; Martínez, Francisco Javier; Gómez, Diego García; García, Beatriz; Gonzalo, Irene; Gonzalez de Prádena, Alfonso; Pasin, Fabio; Montanuy, Inmaculada; Rodríguez-Gonzalo, Encarnación; García, Juan Antonio (PLoS Pathogens, 2022)