>1x3sA (A:) observed residues (from ATOM records)
dedvlttlkiliigesgvgksslllrftddtfdpelaatigvdfkvktisvdgnkaklai
wdtagqerfrtltpsyyrgaqgvilvydvtrrdtfvkldnwlneletyctrndivnmlvg
nkidkenrevdrneglkfarkhsmlfieasaktcdgvqcafeelvekiiqtpglwes