>2FM2_2|Chains B, D|NS4a protein|null KKGSVVIVGRIVLSGKPAIIPKK >2FM2_1|Chains A, C|NS3 protease/helicase|Hepatitis C virus (3052230) MASMTGGQQMGAPITAYAQQTRGLLGCIITSLTGRDKNQVEGEVQIVSTATQTFLATCINGVCWTVYHGAGTRTIASPKGPVIQMYTNVDQDLVGWPAPQGSRSLTPCTCGSSDLYLVTRHADVIPVRRRGDSRGSLLSPRPISYLKGSSGGPLLCPAGHAVGLFRAAVCTRGVAKAVDFIPVENLETTMRSGSHHHHHH