>1xvgF (F:) observed residues (from ATOM records) lgihsndtrdawvnkiaqlntlekaaemlkqfrmdhttpfrnsyeldndylwieakleek vavlkarafnevdfrhktafgedaksvldgtvakmnaakdkweaekihigfrqaykppim pvnyfldgerqlgtrlmelrnlnyydtpleelrkqrgvrvvhlqsp