>4fv4A (A:) observed residues (from ATOM records)
agpemvrgqvfdvgprytnlsyigeggmvcsaydnvnkvrvaikkispfehqtycqrtlr
eikillrfrheniigindiiraptieqmkdvyivqdlmetdlykllktqhlsndhicyfl
yqilrglkyihsanvlhrdlkpsnlllnttcdlkicdfglarvadvatrwyrapeimytk
sidiwsvgcilaemlsnrpifpgkhyldqlnhilgilgspsqedlnciinlkarnyllsl
phknkvpwnrlfpnadskaldlldkmltfnphkrieveqalahpyleqyydpsdepiaea
pfkfdmelddlpkeklkelifeetarfqpg