Chains and heterogens:
PDB Chain Sequences:
>6k7rA (A:) snamrhdeyqyldlirqimrtgnrkgdrtgtgtismfgaqmryslrdgifpllttkrvfw rgvaeellwfvrgstnakelqekdihiwdgnsskeflnkmgfhdreegdlgpvygfqwrh fgapyadmhtdytgqgvdqlqqvidtiknnpddrriimcawnpvdvpkmalppchclcqf yvangelscqlyqrsadmglgvpfniasyalltymiahvtdlkpgdfvhtlgdahvysnh cealeeqlkreprpfpslkikrkvenisdfkfedfeldgykphpkikmemav
>6k7rA (A:) rhdeyqyldlirqimrtgnrkggtismfgaqmryslrdgifpllttkrvfwrgvaeellw fvrgstnakelqekdihiwdgnsskeflnkmgfhdreegdlgpvygfqwrhfgapyadmh tdytgqgvdqlqqvidtiknnpddrriimcawnpvdvpkmalppchclcqfyvangelsc qlyqrsadmglgvpfniasyalltymiahvtdlkpgdfvhtlgdahvysnhcealeeqlk reprpfpslkikrkvenisdfkfedfeldgykphp
>6k7rB (B:) snamrhdeyqyldlirqimrtgnrkgdrtgtgtismfgaqmryslrdgifpllttkrvfw rgvaeellwfvrgstnakelqekdihiwdgnsskeflnkmgfhdreegdlgpvygfqwrh fgapyadmhtdytgqgvdqlqqvidtiknnpddrriimcawnpvdvpkmalppchclcqf yvangelscqlyqrsadmglgvpfniasyalltymiahvtdlkpgdfvhtlgdahvysnh cealeeqlkreprpfpslkikrkvenisdfkfedfeldgykphpkikmemav
>6k7rB (B:) rhdeyqyldlirqimrtgnrktgtismfgaqmryslrdgifpllttkrvfwrgvaeellw fvrgstnakelqekdihiwdgnsskeflnkmgfhdreegdlgpvygfqwrhfgapyadmh tdytgqgvdqlqqvidtiknnpddrriimcawnpvdvpkmalppchclcqfyvangelsc qlyqrsadmglgvpfniasyalltymiahvtdlkpgdfvhtlgdahvysnhcealeeqlk reprpfpslkikrkvenisdfkfedfeldgykphpkikmem