sp|Q21U92|HIS4_ALBFT 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Albidiferax ferrireducens (strain ATCC BAA-621 / DSM 15236 / T118) OX=338969 GN=hisA PE=3 SV=1