# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.1468213 Bacteria.537204 Proteobacteria.291435 Epsilonproteobacteria.1743 Sulfurovum.1529 sun.1492 sun:SUN_1505 xanthine phosphoribosyltransferase; K00769 xanthine phosphoribosyltransferase [EC:2.4.2.22] OC.1468213 Bacteria.537204 Proteobacteria.291435 Epsilonproteobacteria.1743 Sulfurovum.1529 slh.793 slh:YH65_04215 nicotinate phosphoribosyltransferase; K00769 xanthine phosphoribosyltransferase [EC:2.4.2.22]