GPHMATPKANATTAKPASTTSTPVYATLSNAVTAGAAAPQLTTLFAAVRAANVTGALTANTTWTILAPTNDAFAKRLAKLNLTADAVLKNKDLLVKILSYHVIPSGAVYSKALKDNATVATALKDASVTVRLYQGKVMFKGPVNKAQVTVADIKAGGSVIHVINDVLLPPGVVSDAVAKQWKAEWEAMKAEKKVAPKATTGRRFLLF
Recombinant AstaPo1 produced in E.coli expressing zeaxanthin. The protein lacks the signal peptide and contains extra GPHM resides on the N-terminus remaining after the polyhistidine His6-tag removal.