Chains and heterogens:
PDB Chain Sequences:
>1boy_ (-) ttntvaaynltwkstnfktilewepkpvnqvytvqistksgdwkskcfyttdtecdltde ivkdvkqtylarvfsypagnvestgsageplyenspeftpyletnlgqptiqsfeqvgtk vnvtvedertlvrrnntflslrdvfgkdliytlyywkssssgkktaktntneflidvdkg enycfsvqavipsrtvnrkstdspvecmgqe