>sp|A6VWW9|RIBA_MARMS GTP cyclohydrolase-2 OS=Marinomonas sp. GN=ribA MSDLTIKRRVMIPVRAGDVMAEFISFNGDDSGKEHIGIFFEGTKAKADNSIPLVRLHSEC LTGDVFGSGRCDCGEQLDEAIDRINEEGGYILYLRQEGRGIGLYAKLEAYALQDQGYDTY QANEMLHLPDDGRDFGIAAEMLQALGVSKVRLLTNNPDKAQQLIEHGIDVAELVPTKVHV NQHNRSYLETKAKRKQHTLKFD