>3cfiB (B:) observed residues (from ATOM records) elsqertarlnelqralvmmdsdfrqialrqtrtngeskkllhwadylldsdnkgimfar lgwhnpqqqfprgevtkvgyrikderlervwwrypdtpagqegvvtpllsdveelnvrfy dgkqwinewsneltlpaaisveltlkdygkiartyltpeg