N [ARG39:B] O N {VAL40:B} O N [TRP41:B] O N {ILE42:B} O / \ / \ N [PHE2:B] O N {ALA3:B} O N [GLN4:B] O N {ILE5:B} O | | | | O [TYR6:C] N O {ILE5:C} N O [GLN4:C] N O {ALA3:C} N