Chains and heterogens:
PDB Chain Sequences:
>1qnlA (A:) pligllfsetgvtadiersqrygallaveqlnreggvggrpietlsqdpggdpdryrlca edfirnrgvrflvgcymshtrkavmpvveradallcypnpyegfeyspnivyggpapnqn saplaaylirhygervvfigsdyiypresnhvmrhlyrqhggtvleeiyiplypsdddlq raveriyqaradvvfstvvgtgtaelyraiarrygdgrrppiaslttseaevakmesdva egqvvvapyfssidtpasrafvqachgffpenatitawaeaaywqtlllgraaqaagnwr vedvqrhlydididapqgpvrverqnnhsrlssriaeidargvfqvrwqspepirpdpyv vvhnlddw