Chains and heterogens:
PDB Chain Sequences:
>1mdfA (A:) mlkgftpwpdelaetyrkngcwagetfgdllrdraakygdriaitcgnthwsyreldtra drlaagfqklgiqqkdrvvvqlpnikeffevifalfrlgalpvfalpshrsseityfcef aeaaayiipdaysgfdyrslarqvqsklptlkniivageaeeflpledlhtepvklpevk ssdvaflqlsggstglskliprthddyiyslkrsvevcwldhstvylaalpmahnyplss pgvlgvlyaggrvvlspspspddafplierekvtitalvpplamvwmdaassrrddlssl qvlqvggakfsaeaarrvkavfgctlqqvfgmaeglvnytrlddpeeiivntqgkpmspy desrvwddhdrdvkpgetghlltrgpytirgyykaeehnaasftedgfyrtgdivrltrd gyivvegrakdqinrggekvaaeevenhllahpavhdaamvsmpdqflgerscvfiiprd eapkaaelkaflrerglaaykipdrvefvesfpqtgvgkvskkalreaisekllag