>2fn3A (A:) observed residues (from ATOM records)
asvhgttyellrrqgidtvfgnpganelpflkdfpedfryilalqeacvvgiadgyaqas
rkpafinlhsaagtgnamgalsnawnshsplivtagqqtramigvealltnvdaanlprp
lvkwsyepasaaevphamsraihmasmapqgpvylsvpyddwdkdadpqshhlfdrhvss
svrlndqdldilvkalnsasnpaivlgpdvdaananadcvmlaerlkapvwvapsaprcp
fptrhpcfrglmpagiaaisqlleghdvvlvigapvfryhqydpgqylkpgtrlisvtcd
pleaarapmgdaivadigamasalanlveessrqlptaapepakvdqdagrlhpetvfdt
lndmapenaiylneststtaqmwqrlnmrnpgsyyfcaagglgfalpaaigvqlaeperq
viavigdgsanysisalwtaaqyniptifvimnngtygalrwfagvleaenvpgldvpgi
dfralakgygvqalkadnleqlkgslqealsakgpvlievstvs