Chains and heterogens:
PDB Chain Sequences:
>1ex5A (A:) phshpaltpeqkkelsdiahrivapgkgilaadestgsiakrlqsigtenteenrrfyrq llltaddrvnpciggvilfhetlyqkaddgrpfpqvikskggvvgikvdkgvvplagtng etttqgldglsercaqykkdgadfakwrcvlkigehtpsalaimenanvlaryasicqqn givpivapeilpdgdhdlkrcqyvtekvlaavykalsdhhiylegtllkpnmvtpghact qkysheeiamatvtalrrtvppavtgvtflsggqseeeasinlnainkcpllkpwaltfs ygralqasalkawggkkenlkaaqeeyvkralanslacqgkytpsgqagaaaseslfisn hay
>1ex5B (B:) phshpaltpeqkkelsdiahrivapgkgilaadestgsiakrlqsigtenteenrrfyrq llltaddrvnpciggvilfhetlyqkaddgrpfpqvikskggvvgikvdkgvvplagtng etttqgldglsercaqykkdgadfakwrcvlkigehtpsalaimenanvlaryasicqqn givpivapeilpdgdhdlkrcqyvtekvlaavykalsdhhiylegtllkpnmvtpghact qkysheeiamatvtalrrtvppavtgvtflsggqseeeasinlnainkcpllkpwaltfs ygralqasalkawggkkenlkaaqeeyvkralanslacqgkytpsgqagaaaseslfisn hay
>1ex5C (C:) phshpaltpeqkkelsdiahrivapgkgilaadestgsiakrlqsigtenteenrrfyrq llltaddrvnpciggvilfhetlyqkaddgrpfpqvikskggvvgikvdkgvvplagtng etttqgldglsercaqykkdgadfakwrcvlkigehtpsalaimenanvlaryasicqqn givpivapeilpdgdhdlkrcqyvtekvlaavykalsdhhiylegtllkpnmvtpghact qkysheeiamatvtalrrtvppavtgvtflsggqseeeasinlnainkcpllkpwaltfs ygralqasalkawggkkenlkaaqeeyvkralanslacqgkytpsgqagaaaseslfisn hay
>1ex5D (D:) phshpaltpeqkkelsdiahrivapgkgilaadestgsiakrlqsigtenteenrrfyrq llltaddrvnpciggvilfhetlyqkaddgrpfpqvikskggvvgikvdkgvvplagtng etttqgldglsercaqykkdgadfakwrcvlkigehtpsalaimenanvlaryasicqqn givpivapeilpdgdhdlkrcqyvtekvlaavykalsdhhiylegtllkpnmvtpghact qkysheeiamatvtalrrtvppavtgvtflsggqseeeasinlnainkcpllkpwaltfs ygralqasalkawggkkenlkaaqeeyvkralanslacqgkytpsgqagaaaseslfisn hay