>3br0B (B:) observed residues (from ATOM records)
kdkilgvakelfikngynatttgeivklsesskgnlyyhfktkenlfleilnieeskwqe
qwkseqikaktnrekfylynelsltteyyyplqnaiiefyteyyktnsinekmnklqnky
idayhvifkegnlngewsindvnavskiaanavngivtftheqnineriklmnkfsqifl
ngls