Chains and heterogens:
PDB Chain Sequences:
>3b7rL (L:) hhhhhhpeivdtcslaspasvcrtkhlhlrcsvdftrrtltgtaaltvqsqednlrslvl dtkdltiekvvingqevkyalgerqsykgspmeislpialsknqeivieisfetspkssa lqwltpeqtsgkehpylfsqcqaihcrailpcqdtpsvkltytaevsvpkelvalmsair dgetpdpedpsrkiykfiqkvpipcylialvvgalesrqigprtlvwsekeqveksayef setesmlkiaedlggpyvwgqydllvlppsfpyggmenpcltfvtptllagdkslsnvia heishswtgnlvtnktwdhfwlneghtvylerhicgrlfgekfrhfnalggwgelqnsvk tfgethpftklvvdltdidpdvayssvpyekgfallfyleqllggpeiflgflkayvekf syksittddwkdflysyfkdkvdvlnqvdwnawlyspglppikpnydmtltnacialsqr witakeddlnsfnatdlkdlsshqlneflaqtlqraplplghikrmqevynfnainnsei rfrwlrlciqskwedaiplalkmateqgrmkftrplfkdlaafdkshdqavrtyqehkas mhpvtamlvgkdlkvd
>3b7rL (L:) peivdtcslaspasvcrtkhlhlrcsvdftrrtltgtaaltvqsqednlrslvldtkdlt iekvvingqevkyalgerqsykgspmeislpialsknqeivieisfetspkssalqwltp eqtsgkehpylfsqcqaihcrailpcqdtpsvkltytaevsvpkelvalmsairdgetpd pedpsrkiykfiqkvpipcylialvvgalesrqigprtlvwsekeqveksayefsetesm lkiaedlggpyvwgqydllvlppsfpyggmenpcltfvtptllagdkslsnviaheishs wtgnlvtnktwdhfwlneghtvylerhicgrlfgekfrhfnalggwgelqnsvktfgeth pftklvvdltdidpdvayssvpyekgfallfyleqllggpeiflgflkayvekfsyksit tddwkdflysyfkdkvdvlnqvdwnawlyspglppikpnydmtltnacialsqrwitake ddlnsfnatdlkdlsshqlneflaqtlqraplplghikrmqevynfnainnseirfrwlr lciqskwedaiplalkmateqgrmkftrplfkdlaafdkshdqavrtyqehkasmhpvta mlvgkdlkvd