>sp|Q10Y87|HIS4_TRIEI 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Trichodesmium erythraeum GN=hisA MNIIPAIDILGGRCVRLYQGDYKQTQIFNDNPVDVAKRWADEGATKLHLVDLDAAKVGQP VNQKTIEAIIKAVDIPIQVGGGLRNYSTVASLLALGVQQAILGTVAIEQPELVSDFCQKF PGQIIVGIDARDGKVATKGWLETSQVLATDLALQMAKLKVAAIIYTDIHRDGTLKGPNIE ALRELATAVSIPVIASGGISSINDLLNLLALETIGVKGAIVGRALYTGGISLKEANQAVG QGRWQDVPPNLGSSTFV