>1n26A (A:) observed residues (from ATOM records)
laprrcpaqevargvltslpgdsvtltcpgvepednatvhwvlrkpaagshpsrwagmgr
rlllrsvqlhdsgnyscyragrpagtvhllvdvppeepqlscfrksplsnvvcewgprst
pslttkavllvrkfqnspaedfqepcqysqesqkfscqlavpegdssfyivsmcvassvg
skfsktqtfqgcgilqpdppanitvtavarnprwlsvtwqdphswnssfyrlrfelryra
ersktfttwmvkdlqhhcvihdawsglrhvvqlraqeefgqgewsewspeamgtpwtes