Oxalobacter paeniformigenes is a Gram negative, non-spore-forming, oxalate-degrading anaerobic bacterium that was first isolated from human fecal samples.

[1] Similar to other species in the Oxalobacter genus, O. paeniformigenes uses oxalate as its primary carbon source.

[1][6] Whole genome sequencing confirmed that O. paeniformigenes strain OxGP1 is a different species from O. formigenes and it was subsequently renamed.

[2] O. paeniformigenes has a smaller genome with slightly higher G+C content compared to other Oxalobacter species.

[1] Oxalate is supplemented at 20 – 100 mM (depending on desired cell density) and bacteria are grown at 37 °C for 24 – 48 hours.