Chains and heterogens:
PDB Chain Sequences:
>1fc6A (A:) vtseqllfleawravdrayvdksfngqswfklretylkkepmdrraqtydairkmlavld dpftrflepsrlaalrrgtagsvtgvgleitydggsgkdvvvltpapggpaekagaragd vivtvdgtavkgmslydvsdllqgeadsqvevvlhapgapsntrtlqltrqkvtinpvtf ttcsnvaaaalppgaakqqlgyvrlatfnsnttaaaqqaftelskqgvaglvldirnngg glfpagvnvarmlvdrgdlvliadsqgirdiysadgnsidsatplvvlvnrgtasasevl agalkdskrgliagertfgkgliqtvvdlsdgsgvavtvaryqtpagvdinkigvspdvq ldpevlptdlegvcrvlgsdaaprlf