Chains and heterogens:
PDB Chain Sequences:
>3q3uA (A:) mvscgggrsvknaaccawfpvlddiqanlfnggkceeeaheavrltfhdavgfslaaqka gkfggggadgsilafsdietafipnfglefttegfipfalahgvsfgdfvqfagavgaan caggprlqflagrsnisqpspdglvpdptdsadkilarmadigfsptevvhllashsiaa qyevdtdvagspfdstpsvfdtqffvesllhgtqftgsgqggevmspipgefrlqsdfal srdprtacewqalvnnqqamvnnfeavmsrlavigqipselvdcsdviptpplakvaqvg slppgksmadvqvactngmpfpslptspgpvqtvapvl