Chains and heterogens:
PDB Chain Sequences:
>1qupA (A:) ttndtyeatyaipmhcencvndikaclknvpginslnfdieqqimsvessvapstiintl rncgkdaiirgagkpnssavailetfqkytidqkkdtavrglarivqvgenktlfditvn gvpeagnyhasihekgdvskgvestgkvwhkfdepiecfnesdlgknlysgktflsaplp twqligrsfviskslnhpenepssvkdysflgviarsagvwe
>1qupA (A:) ttndtyeatyaipmhcencvndikaclknvpginslnfdieqqimsvessvapstiintl rncgkdaiirgagkpnssavailetfqkytidqkkdtavrglarivqvgenktlfditvn gvpeagnyhasihekgdvskgvestgkvwhkfdepiecfnesdlgknlysgktflsaplp twqligrsfviskslnhpenepssvkdysflgviarsagvw
>1qupB (B:) ttndtyeatyaipmhcencvndikaclknvpginslnfdieqqimsvessvapstiintl rncgkdaiirgagkpnssavailetfqkytidqkkdtavrglarivqvgenktlfditvn gvpeagnyhasihekgdvskgvestgkvwhkfdepiecfnesdlgknlysgktflsaplp twqligrsfviskslnhpenepssvkdysflgviarsagvwe
>1qupB (B:) dtyeatyaipmhcencvndikaclknvpginslnfdieqqimsvessvapstiintlrnc gkdaiirgagkpnssavailetfqkytidqkkdtavrglarivqvgenktlfditvngvp eagnyhasihekgdvskgvestgkvwhkfdepiecfnesdlgknlysgktflsaplptwq ligrsfviskslnhpenepssvkdysflgviarsagvwe