Chains and heterogens:
PDB Chain Sequences:
>1i6qA (A:) askksvrwcttspaeskkcaqwqrrmkkvrgpsvtcvkktsrfeciqaistekadavtld gglvydagldpyklrpiaaevygtenqpqthyyavaiakkgtnfqlnqlqglkschtglg rsagwnipmgllrpfldwtgppeplqkavakffsascvpcvdgkeypnlcqlcagtgenk cacssqepyfgysgafkclqdgagdvafvkdstvfeslpakadrdqyellcpnntrkpvd afqechlarvpshavvarsvngkedliwkllvkaqekfgrgkpsafqlfgspagqkdllf kdsalgllripkkidsglylgsnyitairglretaaevelrraqvvwcavgsdeqlkcqe wsrqsnqsvvcatasttedcialvlkgeadalsldggyiyiagkcglvpvlaesqqspes sgldcvhrpvkgylavavvrkandkitwnslrgkkschtavdrtagwnipmgplfkdtds crfdeffsqscapgsdprsklcalcagneegqlkcvpnsserlygytgafrclaenvgdv afvkdvtvldntdgkgteqwakdlklgdfellclngtrkpvteaeschlpvapnhavvsr idkvahlrqvllrqqahfgrngedcpgkfclfqsktknllfndnteclaklqgkttydey lgpqyvtaiaklrrcstsplleacaflmr