>4nkfA (A:) observed residues (from ATOM records)
dvyaqekqdfvqhfsqivrvltehpeigdaiarlkevleyntiggkynrgltvvvafrel
veprkqdadslqrawtvgwcvellqafflvaddimdssltrrgqicwyqkpgvgldaind
anlleaciyrllklycreqpyylnlielflqssyqteigqtldlltapqgnvdlvrftek
ryksivkyktafysfylpiaaamymagidgekehanakkillemgefaqiqddyldlfgd
psvtgkigtdiqdnkcswlvvqclqratpeqyqilkenygqkeaekvarvkalyeeldlp
avflqyeedsyshimalieqyaaplppavflglarkiyk