KEGG Orthology (KO) [BR:ko00001] 09100 Metabolism 09108 Metabolism of cofactors and vitamins 00860 Porphyrin metabolism [PATH:ko00860] K03404 chlD, bchD; magnesium chelatase subunit D [EC:6.6.1.1] Enzymes [BR:ko01000] 6. Ligases 6.6 Forming nitrogen-metal bonds 6.6.1 Forming coordination complexes 6.6.1.1 magnesium chelatase K03404 chlD, bchD; magnesium chelatase subunit D [EC:6.6.1.1]