>2fr6B (B:) SEQRES residues maqerpscavepehvqrlllssreakksaycpysrfpvgaalltgdgrifsgcnienacy plgvcaertaiqkaisegykdfraiaissdlqeefispcgacrqvmrefgtdwavymtkp dgtfvvrtvqellpasfgpedlqkiq