Chains and heterogens:
PDB Chain Sequences:
>2aldA (A:) pyqypaltpeqkkelsdiahrivapgkgilaadestgsiakrlqsigtenteenrrfyrq llltaddrvnpciggvilfhetlyqkaddgrpfpqvikskggvvgikvdkgvvplagtng etttqgldglsercaqykkdgadfakwrcvlkigehtpsalaimenanvlaryasicqqn givpivepeilpdgdhdlkrcqyvtekvlaavykalsdhhiylegtllkpnmvtpghact qkfsheeiamatvtalrrtvppavtgitflsggqseeeasinlnainkcpllkpwaltfs ygralqasalkawggkkenlkaaqeeyvkralanslacqgkytpsgqagaaaseslfvsn hay