Chains and heterogens:
PDB Chain Sequences:
>3swiA (A:) mdkfrvqgptrlqgevtisgaknaalpilfaallaeepveiqnvpklkdidttmklltql gtkverdgsvwidasnvnnfsapydlvktmrasiwalgplvarfgqgqvslpggxaigar pvdlhifgleklgaeikleegyvkasvngrlkgahivmdkvsvgatvtimsaatlaegtt iienaarepeivdtanflvalgakisgqgtdritiegverlgggvyrvlpdrietgtflv aaaisggkivcrnaqpdtldavlaklreagadietgedwisldmhgkrpkavtvrtaphp afptdmqaqftllnlvaegtgvitetifenrfmhvpelirmgahaeiesntvichgvekl sgaqvmatdlrasaslvlagciaegttvvdriyhidrgyeriedklralganiervkge