Chains and heterogens:
PDB Chain Sequences:
>1v6sA (A:) mrtlldldpkgkrvlvrvdynvpvqdgkvqdetrileslptlrhllaggaslvllshlgr pkgpdpkyslapvgealrahlpearfapfppgseearreaealrpgevlllenvrfepge ekndpelsaryarlgeafvldafgsahrahasvvgvarllpayagflmekevralsrllk dperpyavvlggakvsdkigviesllpridrlliggamaftflkalggevgrslveedrl dlakdllgraealgvrvylpedvvaaerieagvetrvfparaipvpymgldigpktreaf aralegartvfwngpmgvfevppfdegtlavgqaiaalegaftvvgggdsvaavnrlglk erfghvstgggasleflekgtlpglevleg
>1v6sB (B:) mrtlldldpkgkrvlvrvdynvpvqdgkvqdetrileslptlrhllaggaslvllshlgr pkgpdpkyslapvgealrahlpearfapfppgseearreaealrpgevlllenvrfepge ekndpelsaryarlgeafvldafgsahrahasvvgvarllpayagflmekevralsrllk dperpyavvlggakvsdkigviesllpridrlliggamaftflkalggevgrslveedrl dlakdllgraealgvrvylpedvvaaerieagvetrvfparaipvpymgldigpktreaf aralegartvfwngpmgvfevppfdegtlavgqaiaalegaftvvgggdsvaavnrlglk erfghvstgggasleflekgtlpglevleg