Chains and heterogens:
PDB Chain Sequences:
>5aenA (A:) ivdtcslaspasvcrtkhlhlrcsvdftrrtltgtaaltvqsqednlrslvldtkdltie kvvingqevkyalgerqsykgspmeislpialsknqeivieisfetspkssalqwltpeq tsgkehpylfsqcqaihcrailpcqdtpsvkltytaevsvpkelvalmsairdgetpdpe dpsrkiykfiqkvpipcylialvvgalesrqigprtlvwsekeqveksayefsetesmlk iaedlggpyvwgqydllvlppsfpyggmenpcltfvtptllagdkslsnviaheishswt gnlvtnktwdhfwlneghtvylerhicgrlfgekfrhfnalggwgelqnsvktfgethpf tklvvdltdidpdvayssvpyekgfallfyleqllggpeiflgflkayvekfsyksittd dwkdflysyfkdkvdvlnqvdwnawlyspglppikpnydmtltnacialsqrwitakedd lnsfnatdlkdlsshqlneflaqtlqraplplghikrmqevynfnainnseirfrwlrlc iqskwedaiplalkmateqgrmkftrplfkdlaafdkshdqavrtyqehkasmhpvtaml vgkdlkvd