>4fv0A (A:) observed residues (from ATOM records)
pemvrgqvfdvgprytnlsyigegaygmvcsaydnvnkvrvaikkispfehqtycqrtlr
eikillrfrheniigindiiraptieqmkdvyivqdlmetdlykllktqhlsndhicyfl
yqilrglkyihsanvlhrdlkpsnlllnttcdlkicdfglarvadpdhdhtgflteyvat
rwyrapeimlnskgytksidiwsvgcilaemlsnrpifpgkhyldqlnhilgilgspsqe
dlnciinlkarnyllslphknkvpwnrlfpnadskaldlldkmltfnphkrieveqalah
pyleqyydpsdepiaeapfkfddlpkeklkelifeetarfqpgy