>1md3A (A:) observed residues (from ATOM records)
pytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgdlt
lyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyvka
lpgqlkpfetllsqnqggktfivadqisfadynlldlllihevlapgcldafpllsayvg
rlsarpklkaflaspeyvnlpingngkq