>3uf4A (A:) observed residues (from ATOM records) tlfvalydyearteddlsfhkgekfqilnssegdwwearslttgetgyipsnyvapvdsi qaeewyfgklgrkdaerqllsfgnprgtfliresettkgayslsirdwddmkgdhvkhyk irkldnggyyittraqfetlqqlvqhysekadglcfnltv