>2fr6A (A:) SEQRES residues maqerpscavepehvqrlllssreakksaycpysrfpvgaalltgdgrifsgcnienacy plgvcaertaiqkaisegykdfraiaissdlqeefispcgacrqvmrefgtdwavymtkp dgtfvvrtvqellpasfgpedlqkiq