Fig. 1From: Virus-like particles derived from Pichia pastoris-expressed dengue virus type 1 glycoprotein elicit homotypic virus-neutralizing envelope domain III-directed antibodiesInvestigation of VLP formation by purified DENV-1 E protein. a EM analysis of DENV-1 E VLPs by negative staining with 1Â % uranyl acetate. b DLS analysis of particle size distribution by volumeBack to article page