Chains and heterogens:
PDB Chain Sequences:
>17gsA (A:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpafqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>17gsB (B:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpafqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>17gsB (B:) pytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpafqdgdlt lyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyvka lpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsayvg rlsarpklkaflaspeyvnlpingngkq