Surprises from the crystal structure of the hepatitis C virus NS2‐3 protease
Jerome Gouttenoire, Darius Moradpour, François Penin – 28 November 2006 – Hepatitis C virus is a major global health problem affecting an estimated 170 million people worldwide. Chronic infection is common and can lead to cirrhosis and liver cancer. There is no vaccine available and current therapies have met with limited success. The viral RNA genome encodes a polyprotein that includes 2 proteases essential for virus replication. The NS2‐3 protease mediates a single cleavage at the NS2/NS3 junction, whereas the NS3‐4A protease cleaves at 4 downstream sites in the polyprotein.