Zika virus nonstructural protein 1 (NS1)

Zika virus nonstructural protein 1 (NS1) is a multifunctional, glycosylated viral protein essential for Zika virus replication and pathogenesis[1][2][3][5]. NS1 forms homodimers that participate in viral replication complexes within the host cell, and is also secreted as a hexameric lipoprotein particle into the extracellular space, where it interacts with components of the host immune system, facilitating immune evasion and contributing to disease processes[2][3][5]. Structurally, NS1 displays conserved regions among flaviviruses but displays diverse electrostatic properties at host-interaction interfaces, suggesting different modes of pathogenesis among related viruses[1][2][3][5]. NS1 serves as the major antigenic marker for Zika virus infection, making it important for diagnostics and a potential therapeutic target, though no specific drugs are currently approved that interact directly with Zika virus NS1[2]. Cross-reactivity with other flaviviruses and its role in immune modulation pose notable challenges for therapeutic and vaccine development.

Other names

NS1 proteinNS1 (Zika virus)ZIKV NS1

Inhibition of NS1 function as an antiviral strategy (not specific drugs, but inhibition disrupts replication and immune evasion functions)