>3kfcB (B:) observed residues (from ATOM records)
qltaaqelmiqqlvaaqlqcnkrsfsdqpkvtpwpdarqqrfahftelaiisvqeivdfa
kqvpgflqlgredqiallkastieimlletarrynhetecitflkdftyskddfhraglq
vefinpifefsramrrlglddaeyalliainifsadrpnvqepgrvealqqpyveallsy
trikrpqdqlrfprmlmklvslrtlssvhseqvfalrlqdkklppllseiwd