>4bfxB (B:) observed residues (from ATOM records)
pspyvefdrrqwralrmstplalteeelvglrglgeqidlleveevylplarlihlqvaa
rqrlfaataeflgepqqnpdrpvpfiigvagsvavgksttarvlqallarwdhhprvdlv
ttdgflypnaelqrrnlmhrkgfpesynrralmrfvtsvksgsdyacapvyshlhydiip
gaeqvvrhpdilileglnvlqtgptlmvsdlfdfslyvdariedieqwyvsrflamrtta
fadpeshfhhyaafsdsqavvaareiwrtinrpnlvenilptrpratlvlrkdadhsinr
lrlrkl