Chains and heterogens:
PDB Chain Sequences:
>1pstH (H:) laslaiysfwiflagliyylqtenmregyplenedgtpaanqgpfplpkpktfilphgrg tltvpgpesedrpialartavsegfphaptgdpmkdgvgpaswvarrdlpeldghghnki kpmkaaagfhvsagknpiglpvrgcdleiagkvvdiwvdipeqmarflevelkdgstrll pmqmvkvqsnrvhvnalssdlfagiptiksptevtlleedkicgyvagglmyaapkr
>1pstL (L:) ferkyrvpggtlvggnlfdfwvgpfyvgffgvatfffaalgiiliawsavlqgtwnpqli svyppaleyglggaplakgglwqiiticatgafvswalreveicrklgigyhipfafafa ilayltlvlfrpvmmgawgyafpygiwthldwvsntgytygnfhynpahmiaisffftna lalalhgalvlsaanpekgkemrtpdhedtffrdlvgysigtlgihrlglllslsavffs alcmiitgtiwfdqwvdwwqwwvklp
>1pstM (M:) ifsqvqvrgpadlgmtedvnlanrsgvgpfstllgwfgnaqlgpiylgslgvlslfsglm wfftigiwfwyqagwnpavflrdlfffsleppapeyglsfaaplkegglwliasffmfva vwswwgrtylraqalgmgkhtawaflsaiwlwmvlgfirpilmgswseavpygifshldw tnnfslvhgnlfynpflglsiaflygsallfamhgatilavsrfggereleqiadrgtaa eraalfwrwtmgfnatmegihrwaiwmavlvtltggigillsgtvvdnwyvwgqnh