KEGG Orthology (KO) [BR:rsp00001] 09100 Metabolism 09108 Metabolism of cofactors and vitamins 00860 Porphyrin metabolism [PATH:rsp00860] RSP_3342 bfr; Bacterioferritin K03594 bfr; bacterioferritin [EC:1.16.3.1] Enzymes [BR:rsp01000] 1. Oxidoreductases 1.16 Oxidizing metal ions 1.16.3 With oxygen as acceptor 1.16.3.1 ferroxidase RSP_3342 bfr; Bacterioferritin K03594 bfr; bacterioferritin [EC:1.16.3.1]