Cupriavidus necator (strainATCC 43291 / DSM 13513 / N-1) is a copper-resistant, Gram-negative bacterium isolated from soil in the vicinity of University Park, PA, USA. It is described as a nonobligate predator of various Gram-negative and Gram-positive soil bacteria and fungi. When confronted with Agromyces ramosus mycelia during the so-called attack-counterattack predation process, it produces several chemical signals, one of which chelates copper. C. necator is highly resistant to copper and its growth initiation is strongly stimulated by copper. It possesses a complete sets of genes required for polyhydroxyalkanoate metabolism, degradation of benzoate, 4-hydroxybenzoate, phenol, and chlorinated aromatic compounds, and the gentisate pathway. Putative genes coding for copper resistance proteins (copABCD) and a copper efflux P-type ATPase (copF) are present. (Adapted from PMID: 21742890).