Chains and heterogens:
PDB Chain Sequences:
>1i8lA (A:) vihvtkevkevatlscghnvsveelaqtriywqkekkmvltmmsgdmniwpeyknrtifd itnnlsivilalrpsdegtyecvvlkyekdafkrehlaevtlsvkadfptpsisdfeipt snirriicstsggfpephlswlengeelnainttvsqdpetelyavsskldfnmttnhsf mclikyghlrvnqtfnwnt
>1i8lB (B:) vihvtkevkevatlscghnvsveelaqtriywqkekkmvltmmsgdmniwpeyknrtifd itnnlsivilalrpsdegtyecvvlkyekdafkrehlaevtlsvkadfptpsisdfeipt snirriicstsggfpephlswlengeelnainttvsqdpetelyavsskldfnmttnhsf mclikyghlrvnqtfnwnt
>1i8lC (C:) mhvaqpavvlassrgiasfvceyaspgkatevrvtvlrqadsqvtevcaatymmgneltf lddsictgtssgnqvnltiqglramdtglyickvelmypppyylgigngaqiyvidpe
>1i8lD (D:) mhvaqpavvlassrgiasfvceyaspgkatevrvtvlrqadsqvtevcaatymmgneltf lddsictgtssgnqvnltiqglramdtglyickvelmypppyylgigngaqiyvidpe