Chains and heterogens:
PDB Chain Sequences:
>1pgtA (A:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyvsliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>1pgtB (B:) mppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgd ltlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyvsliytnyeagkddyv kalpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsay vgrlsarpklkaflaspeyvnlpingngkq
>1pgtB (B:) ppytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgdl tlyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyvsliytnyeagkddyvk alpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsayv grlsarpklkaflaspeyvnlpingngkq