Chains and heterogens:
PDB Chain Sequences:
>1bvwA (A:) gnpfegvqlwannyyrsevhtlaipqitdpalraaasavaevpsfqwldrnvtvdtllvq tlseireanqaganpqyaaqivvydlpdrdcaaaasngewaianngvnnykayinrirei lisfsdvrtilviepdslanmvtnmnvpkcsgaastyreltiyalkqldlphvamymdag hagwlgwpaniqpaaelfakiyedagkpravrglatnvanynawsvsspppytspnpnyd ekhyieafrplleargfpaqfivdqgrsgkqptgqkewghwcnaigtgfgmrptantghq yvdafvwvkpggecdgtsdttaarydyhcgledalkpapeagqwfneyfiqllrnanppf