>4nftA (A:) observed residues (from ATOM records)
mrkesysiyvykvlkqvhpdtgisskamgimnsfvndiferiageasrlahynkrstits
reiqtavrlllpgelakhavsegtkavtkytsskksrsqraglqfpvgrihrhlksrtts
hgrvgataavysaaileyltaevlelagnaskdlkvkritprhlqlairgdeeldslika
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