Chains and heterogens:
PDB Chain Sequences:
>1xaa_ (-) mkvavlpgdgigpevteaalkvlraldeaeglglayevfpfggaaidafgepfpeptrkg veeaeavllgsvggpkwdglprkirpetgllslrksqdlfanlrpakvfpglerlsplke eiargvdvlivreltggiyfgeprgmseaeawnteryskpevervarvafeaarkrrkhv vsvdkanvlevgefwrktveevgrgypdvalehqyvdamamhlvrsparfdvvvtgnifg dilsdlasvlpgslgllpsaslgrgtpvfepvhgsapdiagkgianptaailsaammleh afglvelarkvedavakalletpppdlggsagteaftatvlrhla