>4n27F (F:) observed residues (from ATOM records)
mpiyaynghkpqfadresnwiapdatligkvvvgenagfwfgavlrgdnepitigadtnv
qeqtimhtdigfpltigagctighrailhgctigentligmgaivlngakvgkncligag
tlvkegmeipdnslvvgsparvlrqlddaaveklrasakhyverghsfmrgmepa