>1y3aA (A:) observed residues (from ATOM records)
vkllllgagesgkstivkqmkiiheagyseeeckqykavvysntiqsiiaiiramgrlki
dfgdsaraddarqlfvlamtaelagvikrlwkdsgvqacfnrsreyqlndsaayylndld
riaqpnyiptqqdvlrtrvkttgivethftfkdlhfkmfdvggqrserkkwihcfegvta
iifcvalsdydlvmnrmhesmklfdsicnnkwftdtsiilflnkkdlfeekikkspltic
ypeyagsntyeeaaayiqcqfedlnkrkdtkeiythftcatdtknvqfvfdavtdviik