_EC 1.13.11.- With incorporation of two atoms of oxygen. 271 PDB entries  
EC 1.-.-.- Oxidoreductases. [8,663 PDB entries]
EC 1.13.-.- Acting on single donors with incorporation of molecular oxygen. [306 PDB entries]
EC 1.13.11.- With incorporation of two atoms of oxygen. [271 PDB entries]    
EC Catechol 1,2-dioxygenase. [14 PDB entries]
EC Catechol 2,3-dioxygenase. [1 PDB entries]
EC Protocatechuate 3,4-dioxygenase. [47 PDB entries]
EC Gentisate 1,2-dioxygenase. [1 PDB entries]
EC Homogentisate 1,2-dioxygenase. [5 PDB entries]
EC 3-hydroxyanthranilate 3,4-dioxygenase. [12 PDB entries]
EC Deleted entry. [-]
EC Protocatechuate 4,5-dioxygenase. [2 PDB entries]
EC 2,5-dihydroxypyridine 5,6-dioxygenase. [-]
EC 7,8-dihydroxykynurenate 8,8a-dioxygenase. [-]
EC Tryptophan 2,3-dioxygenase. [11 PDB entries]
EC Linoleate 13S-lipoxygenase. [14 PDB entries]
EC Deleted entry. [-]
EC 2,3-dihydroxybenzoate 3,4-dioxygenase. [-]
EC 3,4-dihydroxyphenylacetate 2,3-dioxygenase. [1 PDB entries]
EC 3-carboxyethylcatechol 2,3-dioxygenase. [-]
EC Indole 2,3-dioxygenase. [-]
EC Sulfur dioxygenase. [1 PDB entries]
EC Cysteamine dioxygenase. [-]
EC Cysteine dioxygenase. [24 PDB entries]
EC Transferred entry: [-]
EC Caffeate 3,4-dioxygenase. [-]
EC 2,3-dihydroxyindole 2,3-dioxygenase. [-]
EC Quercetin 2,3-dioxygenase. [16 PDB entries]
EC 3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5- [-]
EC Peptide-tryptophan 2,3-dioxygenase. [-]
EC 4-hydroxyphenylpyruvate dioxygenase. [8 PDB entries]
EC 2,3-dihydroxybenzoate 2,3-dioxygenase. [-]
EC Stizolobate synthase. [-]
EC Stizolobinate synthase. [-]
EC Arachidonate 12-lipoxygenase. [5 PDB entries]
EC Transferred entry: [-]
EC Arachidonate 15-lipoxygenase. [5 PDB entries]
EC Arachidonate 5-lipoxygenase. [5 PDB entries]
EC Pyrogallol 1,2-oxygenase. [-]
EC Chloridazon-catechol dioxygenase. [-]
EC Hydroxyquinol 1,2-dioxygenase. [1 PDB entries]
EC 1-hydroxy-2-naphthoate 1,2-dioxygenase. [-]
EC Biphenyl-2,3-diol 1,2-dioxygenase. [18 PDB entries]
EC Arachidonate 8-lipoxygenase. [7 PDB entries]
EC 2,4'-dihydroxyacetophenone dioxygenase. [1 PDB entries]
EC Deleted entry. [-]
EC Lignostilbene alpha-beta-dioxygenase. [-]
EC Transferred entry: and [-]
EC Linoleate 11-lipoxygenase. [-]
EC 4-hydroxymandelate synthase. [1 PDB entries]
EC 3-hydroxy-4-oxoquinoline 2,4-dioxygenase. [1 PDB entries]
EC 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase. [5 PDB entries]
EC Chlorite O(2)-lyase. [12 PDB entries]
EC Acetylacetone-cleaving enzyme. [1 PDB entries]
EC 9-cis-epoxycarotenoid dioxygenase. [1 PDB entries]
EC Indoleamine 2,3-dioxygenase. [4 PDB entries]
EC Acireductone dioxygenase (Ni(2+)-requiring). [4 PDB entries]
EC Acireductone dioxygenase (Fe(2+)-requiring). [5 PDB entries]
EC Sulfur oxygenase/reductase. [4 PDB entries]
EC 1,2-dihydroxynaphthalene dioxygenase. [5 PDB entries]
EC Gallate dioxygenase. [-]
EC Linoleate 9S-lipoxygenase. [12 PDB entries]
EC Torulene dioxygenase. [-]
EC Linoleate 8R-lipoxygenase. [-]
EC Linolenate 9R-lipoxygenase. [-]
EC Linoleate 10R-lipoxygenase. [-]
EC Beta-carotene 15,15'-dioxygenase. [-]
EC 5-nitrosalicylate dioxygenase. [-]
EC Carotenoid isomerooxygenase. [-]
EC Hydroquinone 1,2-dioxygenase. [-]
EC 8'-apo-beta-carotenoid 14',13'-cleaving dioxygenase. [-]
EC 9-cis-beta-carotene 9',10'-cleaving dioxygenase. [-]
EC Carlactone synthase. [-]
EC All-trans-10'-apo-beta-carotenal 13,14-cleaving dioxygenase. [-]
EC Carotenoid-9',10'-cleaving dioxygenase. [-]
EC 2-hydroxyethylphosphonate dioxygenase. [3 PDB entries]
EC Methylphosphonate synthase. [-]
EC 2-aminophenol 1,6-dioxygenase. [4 PDB entries]
EC All-trans-8'-apo-beta-carotenal 15,15'-oxygenase. [4 PDB entries]
EC 2-amino-5-chlorophenol 1,6-dioxygenase. [4 PDB entries]
EC Oleate 10S-lipoxygenase. [2 PDB entries]
EC 2-amino-1-hydroxyethylphosphonate dioxygenase (glycine-forming). [-]
EC 1.13.11.n1 Transferred entry: [-]
EC 1.13.11.n2 Transferred entry: [-]

[-] signifies that there are no PDB entries for the given enzyme subclass