Chains and heterogens:
PDB Chain Sequences:
>1h7sA (A:) meraessstepakaikpidrksvhqicsgqvvlslstavkelvensldagatnidlklkd ygvdlievsdngcgveeenfegltlkhhtskiqefadltqvetfgfrgealsslcalsdv tistchasakvgtrlmfdhngkiiqktpyprprgttvsvqqlfstlpvrhkefqrnikke yakmvqvlhayciisagirvsctnqlgqgkrqpvvctggspsikenigsvfgqkqlqsli pfvqlppsdsvceeyglscsdalhnlfyisgfisqcthgvgrsstdrqfffinrrpcdpa kvcrlvnevyhmynrhqypfvvlnisvdsecvdinvtpdkrqillqeeklllavlktsli gmfds
>1h7sA (A:) gqvvlslstavkelvensldagatnidlklkdygvdlievsdngcgveeenfegltladl tqvetfgfrgealsslcalsdvtistchasakvgtrlmfdhngkiiqktpyprprgttvs vqqlfstlpvrhkefqrnikkeyakmvqvlhayciisagirvsctnqlgqgkrqpvvctg gspsikenigsvfgqkqlqslipfvqlppsdsvceeyglscsdalhnlfyisgfisqcth gvgrsstdrqfffinrrpcdpakvcrlvnevyhmynrhqypfvvlnisvdsecvdinqil lqeeklllavlktsligmfds
>1h7sB (B:) meraessstepakaikpidrksvhqicsgqvvlslstavkelvensldagatnidlklkd ygvdlievsdngcgveeenfegltlkhhtskiqefadltqvetfgfrgealsslcalsdv tistchasakvgtrlmfdhngkiiqktpyprprgttvsvqqlfstlpvrhkefqrnikke yakmvqvlhayciisagirvsctnqlgqgkrqpvvctggspsikenigsvfgqkqlqsli pfvqlppsdsvceeyglscsdalhnlfyisgfisqcthgvgrsstdrqfffinrrpcdpa kvcrlvnevyhmynrhqypfvvlnisvdsecvdinvtpdkrqillqeeklllavlktsli gmfds
>1h7sB (B:) lslstavkelvensldagatnidlklkdygvdlievsdngcgveeenfegltlgealssl calsdvtistchasakvgtrlmfdhngkiiqktpyprprgttvsvqqlfstlpvrhkefq rnikkeyakmvqvlhayciisagirvsctnqlgqgkrqpvvctggspsikenigsvfgqk qlqslipfvqlppsdsvceeyglscsdalhnlfyisgfisqcthgvgrsstdrqfffinr rpcdpakvcrlvnevyhmynrhqypfvvlnisvdsecvdillqeeklllavlktsligmf ds