>tr|B6BVA1|B6BVA1_9PROT Isoform of B6BVA2, Phosphoribosyl-ATP pyrophosphatase OS=beta proteobacterium KB13 GN=hisI PE=3 SV=1 MSELDELQQLIESKKDSDPSLSYTAKLFSQGIEEIQKKFGEESIELIIASNQDNKKNVIN ESADVLYHLLVLLSEKSVTLKEVISELERRSGMSGLEEKASRNK