EDC + ConS + UFO

EDC + ConS + UFO refers to a combination approach used in HIV-1 vaccine research, specifically involving the use of consensus sequence (ConS) HIV-1 envelope glycoprotein trimers that are uncleaved and prefusion-optimized (UFO), with crosslinking by EDC (N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide). This formulation is designed to present native-like trimeric Env antigens to the immune system, aiming to elicit broadly neutralizing antibodies against diverse HIV strains. The "EDC" component refers to a chemical crosslinker used for stabilizing protein structures; "ConS" denotes a consensus sequence immunogen representing common features across multiple HIV strains; and "UFO" stands for uncleaved prefusion optimized, describing an engineered form of the Env trimer that mimics its natural conformation on the virus surface. These constructs are under investigation as part of next-generation vaccine candidates targeting improved immunogenicity and breadth of response[1][2].