Chains and heterogens:
PDB Chain Sequences:
>3pgtA (A:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>3pgtB (B:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>3pgtB (B:) ppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgdl tlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyvk alpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsayv grlsarpklkaflaspeyvnlpingngkq