Dengue virus structural antigen (envelope, membrane and capsid protein) (DENV structural antigen (if specificity needed, DENV1-E, DENV2-E, DENV3-E, DENV4-E, DENV5-E))

Dengue virus serotype antigens refer mainly to the surface structural proteins (envelope, membrane, capsid) of the four genetically and antigenically distinct dengue virus serotypes (DENV-1 to DENV-4; a fifth serotype is rarely referenced), which define immune recognition, infectivity, and disease severity. These antigens are the primary targets of neutralizing antibodies; differences in antigen sequence and conformation among serotypes influence vaccine efficacy, risk of severe disease after sequential infection, and the epidemiology and evolution of the virus[1][2][4][6]. Most therapeutic and preventive strategies focus on eliciting high-titer, serotype-cross-neutralizing antibodies to these antigenic determinants, but antigenic variation remains a key hurdle[1][6]. The antigens also serve as biomarkers for infection and immunity, and play a central role in diagnostic assays[2]. Note: The term "Dengue virus serotypes antigens" should be refined to the specific antigen per serotype (e.g., "Dengue virus envelope protein, serotype 1"), as antigens are not generally a single protein but a group relevant to each serotype, and the expression is not the canonical target name (is_incorrect=true)[1][4][6][7].

Other names

Dengue virus envelope protein (E protein, by serotype: DENV1-E, DENV2-E, DENV3-E, DENV4-E)Dengue virus major antigensDenV serotypesDENV antigensFlavivirus envelope antigen

Neutralizing antibody binding to the envelope protein, preventing viral attachment and fusion Vaccine-induced immunity targeting serotype-specific and cross-reactive epitopes on structural proteins