# OC Root 2nd 3rd 4th PC Gene/Definition OC.635679 Bacteria.413908 Proteobacteria.113379 Gammaproteobacteria.440636 psal.472 psal:PSLF89_1020 inorganic pyrophosphatase; K01507 inorganic pyrophosphatase [EC:3.6.1.1]