>1f15B (B:) observed residues (from ATOM records)
danfrvlsqqlsrlnktlaagrptinhptfvgsercrpgytftsitlkppkidrgsyygk
rlllpdsvteydkklvsrlqirvnplpkfdstvwvtvrkvpassdlsvaaisamfadgas
pvlvyqyaasgvqannkllydlsamradigdmrkyavlvyskddaletdelvlhvdiehq
riptsgvlpv