>2hu4F (F:) observed residues (from ATOM records)
vklagnsslcpingwavyskdnsirigskgdvfvirepfiscshlecrtffltqgallnd
khsngtvkdrsphrtlmscpvgeapspynsrfesvawsasachdgtswltigisgpdnga
vavlkyngiitdtikswrnnilrtqesecacvngscftvmtdgpsngqasykifkmekgk
vvksveldapnyhyeecscypnageitcvcrdnwhgsnrpwvsfnqnleyqigyicsgvf
gdnprpndgtgscgpvssngaygvkgfsfkygngvwigrtkstnsrsgfemiwdpngwte
tdssfsvkqdivaitdwsgysgsfvqhpeltgldcirpcfwvelirgrpkestiwtsgss
isfcgvnsdtvgwswpdgaelpfti