>1b7yB (B:) observed residues (from ATOM records)
mrvpfswlkayvpelespevleerlaglgfetdriervfpiprgvvfarvleahpipgtr
lkrlvldagrtvevvsgaenarkgigvalalpgtelpglgqkvgerviqgvrsfgmalsp
relgvgeygggllefpedalppgtplseawpeevvldlevtpnrpdalgllglardlhal
gyalvepeaalkaealplpfalkvedpegaphftlgyafglrvapsplwmqralfaagmr
pinnvvdvtnyvmleraqpmhafdlrfvgegiavrraregerlktldgvertlhpedlvi
agwrgeesfplglagvmggaesevredteaialevacfdpvsirktarrhglrteashrf
ergvdplgqvpaqrralsllqalagarvaealleagspkppeaipfrpeyanrllgtsyp
eaeqiailkrlgcrvegegptyrvtppshrldlrleedlveevariqgyetiplalpaff
papdnrgveapyrkeqrlrevlsglgfqevytysfmdpedarrfrldpprllllnplape
kaalrthlfpglvrvlkenldldrperallfevgrvfrereethlagllfgegvglpwak
erlsgyfllkgylealfarlglafrveaqafpflhpgvsgrvlvegeevgflgalhpeia
qelelppvhlfelrlplpdkplafqdpsrhpaafrdlavvvpaptpygevealvreaagp
yleslalfdlyqgpplpeghkslafhlrfrhpkrtlrdeeveeavsrvaealrar