Chains and heterogens:
PDB Chain Sequences:
>1axnA (A:) sasiwvghrgtvrdypdfspsvdaeaiqkairgigtdekmlisiltersnaqrqlivkey qaaygkelkddlkgdlsghfehlmvalvtppavfdakqlkksmkgagtnedalieilttr tsrqmkdisqayytvykkslgddissetsgdfrkalltladgrrdeslkvdehlakqdaq ilykagenrwgtdedkfteilclrsfpqlkltfdeyrnisqkdivdsikgelsghfedll laivncvrntpaflaerlhralkgigtdeftlnrimvsrseidlldirtefkkhygysly saiksdtsgdyeitllkicggdd