Source : Escherichia Coli. Recombinant HCV NS5A produced in E. coli is a single polypeptide chain containing 118 amino acids (aa 2210-2306) and having a molecular mass of 13.4kDa.Recombinant HCV NS5A is fused to a 21 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. NS5A is a component of the replication complex which takes part in RNA-binding. NS5A protein's hyperphosphorylated form is an inhibitor of viral replication. NS5A interacts with Human VAPB and through it targets the viral replication complex to vesicles. NS5A down-regulates viral IRES translation initiation and mediates interferon resistance by interacting and inhibiting human EIF2AK2/PKR. NS5a is also inhibits apoptosis by interacting with BIN1 and FKBP8.
