>1twdB (B:) observed residues (from ATOM records)
alleiccysmecaltaqqngadrvelcaapkeggltpslgvlksvrqrvtipvhpiirpr
ggdfcysdgefaailedvrtvrelgfpglvtgvldvdgnvdmprmekimaaagplavtfh
rafdmcanplytlnnlaelgiarvltsgqksdalqglskimeliahrdapiimagagvra
enlhhfldagvlevhssagawqaspmryreysryivdgaavaemkgiierhqakl