>6fn3A (A:) observed residues (from ATOM records)
gvknsiiwfrkglrlhdnpalleackdakhvypvfvldphflqqkvsvnrynfllesled
lqrsfqargsrllvlrgkpeevfprvfrewgvtqlcfehdtepyakvrdaavrrlaaeag
vevvtpishtlydtdmlvarnggaapltmqsftklvdrvgdppapapdppaampppaedm
psaapaatgvptwqevgfkeppltvfkggetealarleaafqdpkwvagfqkpdtdpsaw
ekpattvlspylkfgclsarlfharllevyrrhpahsqppvslrgqllwreffytvgstt
pnfhrmagnpvckqidwddnpeflaawreartgfpwidaimtqlvtwgwmhhlarhsvac
fltrgdlyvswergmevfeehlidqdhylnaanwmwlsasaffsqyfrvyspvvfgkkyd
pegrfirkflpvlkdmpakyiyepwtaplevqrkagcvvgrdypapivdhavaskaciar
maaayrrsk