>sp|Q4FTX3|HISZ_PSYA2 ATP phosphoribosyltransferase regulatory subunit OS=Psychrobacter arcticus GN=hisZ MLPDGVADVLFEDAHKQEVLRHQLTQQLITHGYQLVSPPMIEFTESLLSGASEDLKRQTF KIIDQLTGRLMGIRADITPQILRIDAHHGGDGIARYCYAGDVIHTLPSGLFGSRTPLQLG AEIFGCESIAADIELIDVLFSMINSLDMSAVLHVDLGHVTIFKRLAELAALSASDTEQLM QLYANKNLPELKQVCQVLPMGSDFYTLARFGHDIANLLGRLSENAQQDTKIVTAIDELQR LKAHLQVQWQCAVSIDVTELSGYHYHTGIVFNGYINSETQPLVRGGRFDGMKSNQLATNQ PRQATGFSMDVSRLLAHTQLDAPFIVLIDYDAFNNLDSAQRQLLLQQVASLRQQGYRVTM PLTAEDMPVGLTHRLSLADNQWRLHAV