Chains and heterogens:
PDB Chain Sequences:
>1kq3A (A:) hmitttifpgryvqgagainileeelsrfgerafvviddfvdknvlgenffssftkvrvn kqifggecsdeeierlsglveeetdvvvgigggktldtakavayklkkpvvivptiastd apcsalsviytpngefkrylflprnpdvvlvdteivakaparflvagmgdalatwfeaes ckqkyapnmtgrlgsmtayalarlcyetlleygvlakrsveeksvtpalekiveantlls glgfesgglaaahaihngltvlenthkylhgekvaigvlaslfltdkprkmieevysfce evglpttlaeigldgvsdedlmkvaekacdknetihnepqpvtskdvffalkaadrygrm rknl