Chains and heterogens:
PDB Chain Sequences:
>1p3eA (A:) vvigddgrtkvantrvapynsiayitfggssctgtliapnkiltnghcvyntasrsysak gsvypgmndstavngsanmtefyvpsgyintgasqydfaviktdtnigntvgyrsirqvt nltgttikisgypgdkmrstgkvsqwemsgsvtredtnlayytidtfsgnsgsamldqnq qivgvhnagysngtinggpkataafvefinyakaq