Chains and heterogens:
PDB Chain Sequences:
>1m2rA (A:) skarvyadvnvlrpkeywdyealtvqwgeqddyevvrkvgrgkysevfeginvnnnekci ikilkpvkkkkikreikilqnlcggpnivklldivrdqhsktpslifeyvnntdfkvlyp tltdydiryyiyellkaldychsqgimhrdvkphnvmidhelrklrlidwglaefyhpgk eynvrvasryfkgpellvdlqdydysldmwslgcmfagmifrkepffyghdnhdqlvkia kvlgtdglnvylnkyrieldpqlealvgrhsrkpwlkfmnadnqhlvspeaidfldkllr ydhqerltaleamthpyfqqvraaens