Chains and heterogens:
PDB Chain Sequences:
>1n6cA (A:) ggvlqgtyvdgelngpaqeydtdgrlifkgqykdnirhgvcwiyypdggslvgevnedge mtgekiayvypdertalygkfidgemiegklatlmsteegrphfelmpgnsvyhfdksts scistnallpdpyeservyvaeslissageglfskvavgpntvmsfyngvrithqevdsr dwalngntlsldeetvidvpepynhvskycaslghkanhsftpnciydmfvhprfgpikc irtlraveadeeltvaygydhsppgksgpeapewyqvelkafqat
>1n6cA (A:) ggvlqgtyvdgelngpaqeydtdgrlifkgqykdnirhgvcwiyypdggslvgevnedge mtgekiayvypdertalygkfidgemiegklatlmsteegrphfelmpgnsvyhfdksts scistnallpdpyeservyvaeslissageglfskvavgpntvmsfyngvrithqevdsr dwalngntlsldeetvidvpepynhvskycaslghkanhsftpnciydmfvhprfgpikc irtlraveadeeltvaygysppgksgpeapewyqvelkafqat