>sp|Q31CA5|HIS6_PROM9 Imidazole glycerol phosphate synthase subunit HisF OS=Prochlorococcus marinus GN=hisF MVALRLIPCLDVAHGRVVKGVNFVNLRDSGDPVELACRYSDEGADELVFLDIRASVENRN TLVDLVSRTAKSVKIPFTVGGGIDSVSSINDLLRAGADKVSLNSSAVRNPDLISKSSREF GNQCIVIAIDAKRKVNKTDEWEVYVKGGRENTGIDVLSWAKKVEELGAGEILLTSMDGDG TQNGYDLHLTESVANIVNIPVIASGGAGCLEDIYDVFNEGRASAALLASLLHDKKLSLRE IKTFLLERKLPIRPYE