This family contains 2-oxoglutarate (2OG) and Fe-dependent dioxygenases. It includes L-isoleucine dioxygenase (IDO) [1,2].

1: A novel l-isoleucine hydroxylating enzyme, l-isoleucine dioxygenase from Bacillus thuringiensis, produces (2S,3R,4S)-4-hydroxyisoleucine. Kodera T, Smirnov SV, Samsonova NN, Kozlov YI, Koyama R, Hibi M, Ogawa J, Yokozeki K, Shimizu S; Biochem Biophys Res Commun. 2009;390:506-510. PMID:19850012

2: A novel family of bacterial dioxygenases that catalyse the hydroxylation of free L-amino acids. Smirnov SV, Sokolov PM, Kodera T, Sugiyama M, Hibi M, Shimizu S, Yokozeki K, Ogawa J; FEMS Microbiol Lett. 2012;331:97-104. PMID:22448874