Unexpected structure for the N-terminal domain of hepatitis C virus envelope glycoprotein E1.

El Omari, Kamel; Iourin, Oleg; Kadlec, Jan; Sutton, Geoff; Harlos, Karl; Grimes, Jonathan M; Stuart, David I · Nat Commun · 2014

basic_science · Level V

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Abstract

Hepatitis C virus (HCV) infection remains a major health problem worldwide. HCV entry into host cells and membrane fusion are achieved by two envelope glycoproteins, E1 and E2. We report here the 3.5-Å resolution crystal structure of the N-terminal domain of the HCV E1 ectodomain, which reveals a complex network of covalently linked intertwined homodimers that do not harbour the expected truncated class II fusion protein fold.

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