Fig. 1From: Protection induced by a gp90 protein-based vaccine derived from a Reticuloendotheliosis virus strain isolated from a contaminated IBD vaccineThe amplification of the gp90 gene and the construction of the recombinant plasmid with PET-28a(+). a PCR amplification of the gp90 gene. b Double restriction enzyme digestion with EcoR I and Xho I of the recombinant plasmidBack to article page