>19gsB (B:) observed residues (from ATOM records)
pytvvyfpvrgrcaalrmlladqgqswkeevvtvetwqegslkasclygqlpkfqdgdlt
lyqsntilrhlgrtlglygkdqqeaalvdmvndgvedlrckyisliytnyeagkddyvka
lpgqlkpfetllsqnqggktfivgdqisfadynlldlllihevlapgcldafpllsayvg
rlsarpklkaflaspeyvnlpingngkq