>1a3nD (D:) observed residues (from ATOM records)
hltpeeksavtalwgkvnvdevggealgrllvvypwtqrffesfgdlstpdavmgnpkvk
ahgkkvlgafsdglahldnlkgtfatlselhcdklhvdpenfrllgnvlvcvlahhfgke
ftppvqaayqkvvagvanalahkyh