>2nxnA (A:) observed residues (from ATOM records)
mwvyrlkgtlealdpilpglfdggarglweregevwaffpapvdlpyegvweevgdwlea
wrrdlkpalappfvvlapwhtwegaeiplviepgmatghhettrlalkalarhlrpgdkv
ldlgtgsgvlaiaaeklggkalgvdidpmvlpqaeanakrngvrprflegsleaalpfgp
fdllvanlyaelhaalapryrealvpggralltgilkdraplvreamagagfrpleeaae
gewvllaygr