Chains and heterogens:
PDB Chain Sequences:
>1b6rA (A:) mkqvcvlgngqlgrmlrqageplgiavwpvgldaepaavpfqqsvitaeierwpetaltr qlarhpafvnrdvfpiiadrltqkqlfdklhlptapwqllaersewpavfdrlgelaivk rrtggydgrgqwrlraneteqlpaecygeciveqginfsgevslvgargfdgstvfyplt hnlhqdgilrtsvafpqanaqqqaraeemlsaimqelgyvgvmamecfvtpqgllinela prvhnsghwtqngasisqfelhlraitdlplpqpvvnnpsvminligsdvnydwlklplv hlhwydkevrpgrkvghlnltdsdtsrltatlealipllppeyasgviwaqskfg
>1b6rA (A:) mkqvcvlgngqlgrmlrqageplgiavwpvgldaepaavpfqqsvitaeierwpetaltr qlarhpafvnrdvfpiiadrltqkqlfdklhlptapwqllaersewpavfdrlgelaivk rrtgqwrlraneteqlpaecygeciveqginfsgevslvgargfdgstvfyplthnlhqd gilrtsvafpqanaqqqaraeemlsaimqelgyvgvmamecfvtpqgllinelaprvhns ghwtqngasisqfelhlraitdlplpqpvvnnpsvminligsdvnydwlklplvhlhwyd kevrpgrkvghlnltdsdtsrltatlealipllppeyasgviwaqskfg