Chains and heterogens:
PDB Chain Sequences:
>1b7yA (A:) vdvslpgaslfsgglhpitlmerelveifralgyqavegpeveseffnfdalnipehhpa rdmwdtfwltgegfrlegplgeevegrlllrthtspmqvrymvahtppfrivvpgrvfrf eqtdatheavfhqleglvvgegiamahlkgaiyelaqalfgpdskvrfqpvyfpfvepga qfavwwpeggkwlelggagmvhpkvfqavdayrerlglppayrgvtgfafglgverlaml rygipdiryffggrlkfleqfkgvl
>1b7yB (B:) mrvpfswlkayvpelespevleerlaglgfetdriervfpiprgvvfarvleahpipgtr lkrlvldagrtvevvsgaenarkgigvalalpgtelpglgqkvgerviqgvrsfgmalsp relgvgeygggllefpedalppgtplseawpeevvldlevtpnrpdalgllglardlhal gyalvepeaalkaealplpfalkvedpegaphftlgyafglrvapsplwmqralfaagmr pinnvvdvtnyvmleraqpmhafdlrfvgegiavrraregerlktldgvertlhpedlvi agwrgeesfplglagvmggaesevredteaialevacfdpvsirktarrhglrteashrf ergvdplgqvpaqrralsllqalagarvaealleagspkppeaipfrpeyanrllgtsyp eaeqiailkrlgcrvegegptyrvtppshrldlrleedlveevariqgyetiplalpaff papdnrgveapyrkeqrlrevlsglgfqevytysfmdpedarrfrldpprllllnplape kaalrthlfpglvrvlkenldldrperallfevgrvfrereethlagllfgegvglpwak erlsgyfllkgylealfarlglafrveaqafpflhpgvsgrvlvegeevgflgalhpeia qelelppvhlfelrlplpdkplafqdpsrhpaafrdlavvvpaptpygevealvreaagp yleslalfdlyqgpplpeghkslafhlrfrhpkrtlrdeeveeavsrvaealrar