Chains and heterogens:
PDB Chain Sequences:
>1e66A (A:) sellvntksgkvmgtrvpvlsshisaflgipfaeppvgnmrfrrpepkkpwsgvwnasty pnncqqyvdeqfpgfsgsemwnpnremsedclylniwvpsprpksttvmvwiygggfysg sstldvyngkylayteevvlvslsyrvgafgflalhgsqeapgnvglldqrmalqwvhdn iqffggdpktvtifgesaggasvgmhilspgsrdlfrrailqsgspncpwasvsvaegrr ravelgrnlncnlnsdeelihclrekkpqelidvewnvlpfdsifrfsfvpvidgeffpt slesmlnsgnfkktqillgvnkdegsffllygapgfskdseskisredfmsgvklsvpha ndlgldavtlqytdwmddnngiknrdglddivgdhnvicplmhfvnkytkfgngtylyff nhrasnlvwpewmgvihgyeiefvfglplvkelnytaeeealsrrimhywatfaktgnpn ephsqeskwplfttkeqkfidlntepmkvhqrlrvqmcvfwnqflpkllnat