_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 1.13.11.1 Catechol 1,2-dioxygenase. [14 PDB entries]
EC 1.13.11.2 Catechol 2,3-dioxygenase. [1 PDB entries]
EC 1.13.11.3 Protocatechuate 3,4-dioxygenase. [47 PDB entries]
EC 1.13.11.4 Gentisate 1,2-dioxygenase. [1 PDB entries]
EC 1.13.11.5 Homogentisate 1,2-dioxygenase. [5 PDB entries]
EC 1.13.11.6 3-hydroxyanthranilate 3,4-dioxygenase. [12 PDB entries]
EC 1.13.11.7 Deleted entry. [-]
EC 1.13.11.8 Protocatechuate 4,5-dioxygenase. [2 PDB entries]
EC 1.13.11.9 2,5-dihydroxypyridine 5,6-dioxygenase. [-]
EC 1.13.11.10 7,8-dihydroxykynurenate 8,8a-dioxygenase. [-]
EC 1.13.11.11 Tryptophan 2,3-dioxygenase. [11 PDB entries]
EC 1.13.11.12 Linoleate 13S-lipoxygenase. [14 PDB entries]
EC 1.13.11.13 Deleted entry. [-]
EC 1.13.11.14 2,3-dihydroxybenzoate 3,4-dioxygenase. [-]
EC 1.13.11.15 3,4-dihydroxyphenylacetate 2,3-dioxygenase. [1 PDB entries]
EC 1.13.11.16 3-carboxyethylcatechol 2,3-dioxygenase. [-]
EC 1.13.11.17 Indole 2,3-dioxygenase. [-]
EC 1.13.11.18 Sulfur dioxygenase. [1 PDB entries]
EC 1.13.11.19 Cysteamine dioxygenase. [-]
EC 1.13.11.20 Cysteine dioxygenase. [24 PDB entries]
EC 1.13.11.21 Transferred entry: 1.14.99.36. [-]
EC 1.13.11.22 Caffeate 3,4-dioxygenase. [-]
EC 1.13.11.23 2,3-dihydroxyindole 2,3-dioxygenase. [-]
EC 1.13.11.24 Quercetin 2,3-dioxygenase. [16 PDB entries]
EC 1.13.11.25 3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5- [-]
EC 1.13.11.26 Peptide-tryptophan 2,3-dioxygenase. [-]
EC 1.13.11.27 4-hydroxyphenylpyruvate dioxygenase. [8 PDB entries]
EC 1.13.11.28 2,3-dihydroxybenzoate 2,3-dioxygenase. [-]
EC 1.13.11.29 Stizolobate synthase. [-]
EC 1.13.11.30 Stizolobinate synthase. [-]
EC 1.13.11.31 Arachidonate 12-lipoxygenase. [5 PDB entries]
EC 1.13.11.32 Transferred entry: 1.13.12.16. [-]
EC 1.13.11.33 Arachidonate 15-lipoxygenase. [5 PDB entries]
EC 1.13.11.34 Arachidonate 5-lipoxygenase. [5 PDB entries]
EC 1.13.11.35 Pyrogallol 1,2-oxygenase. [-]
EC 1.13.11.36 Chloridazon-catechol dioxygenase. [-]
EC 1.13.11.37 Hydroxyquinol 1,2-dioxygenase. [1 PDB entries]
EC 1.13.11.38 1-hydroxy-2-naphthoate 1,2-dioxygenase. [-]
EC 1.13.11.39 Biphenyl-2,3-diol 1,2-dioxygenase. [18 PDB entries]
EC 1.13.11.40 Arachidonate 8-lipoxygenase. [7 PDB entries]
EC 1.13.11.41 2,4'-dihydroxyacetophenone dioxygenase. [1 PDB entries]
EC 1.13.11.42 Deleted entry. [-]
EC 1.13.11.43 Lignostilbene alpha-beta-dioxygenase. [-]
EC 1.13.11.44 Transferred entry: 1.13.11.60 and 5.4.4.6. [-]
EC 1.13.11.45 Linoleate 11-lipoxygenase. [-]
EC 1.13.11.46 4-hydroxymandelate synthase. [1 PDB entries]
EC 1.13.11.47 3-hydroxy-4-oxoquinoline 2,4-dioxygenase. [1 PDB entries]
EC 1.13.11.48 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase. [5 PDB entries]
EC 1.13.11.49 Chlorite O(2)-lyase. [12 PDB entries]
EC 1.13.11.50 Acetylacetone-cleaving enzyme. [1 PDB entries]
EC 1.13.11.51 9-cis-epoxycarotenoid dioxygenase. [1 PDB entries]
EC 1.13.11.52 Indoleamine 2,3-dioxygenase. [4 PDB entries]
EC 1.13.11.53 Acireductone dioxygenase (Ni(2+)-requiring). [4 PDB entries]
EC 1.13.11.54 Acireductone dioxygenase (Fe(2+)-requiring). [5 PDB entries]
EC 1.13.11.55 Sulfur oxygenase/reductase. [4 PDB entries]
EC 1.13.11.56 1,2-dihydroxynaphthalene dioxygenase. [5 PDB entries]
EC 1.13.11.57 Gallate dioxygenase. [-]
EC 1.13.11.58 Linoleate 9S-lipoxygenase. [12 PDB entries]
EC 1.13.11.59 Torulene dioxygenase. [-]
EC 1.13.11.60 Linoleate 8R-lipoxygenase. [-]
EC 1.13.11.61 Linolenate 9R-lipoxygenase. [-]
EC 1.13.11.62 Linoleate 10R-lipoxygenase. [-]
EC 1.13.11.63 Beta-carotene 15,15'-dioxygenase. [-]
EC 1.13.11.64 5-nitrosalicylate dioxygenase. [-]
EC 1.13.11.65 Carotenoid isomerooxygenase. [-]
EC 1.13.11.66 Hydroquinone 1,2-dioxygenase. [-]
EC 1.13.11.67 8'-apo-beta-carotenoid 14',13'-cleaving dioxygenase. [-]
EC 1.13.11.68 9-cis-beta-carotene 9',10'-cleaving dioxygenase. [-]
EC 1.13.11.69 Carlactone synthase. [-]
EC 1.13.11.70 All-trans-10'-apo-beta-carotenal 13,14-cleaving dioxygenase. [-]
EC 1.13.11.71 Carotenoid-9',10'-cleaving dioxygenase. [-]
EC 1.13.11.72 2-hydroxyethylphosphonate dioxygenase. [3 PDB entries]
EC 1.13.11.73 Methylphosphonate synthase. [-]
EC 1.13.11.74 2-aminophenol 1,6-dioxygenase. [4 PDB entries]
EC 1.13.11.75 All-trans-8'-apo-beta-carotenal 15,15'-oxygenase. [4 PDB entries]
EC 1.13.11.76 2-amino-5-chlorophenol 1,6-dioxygenase. [4 PDB entries]
EC 1.13.11.77 Oleate 10S-lipoxygenase. [2 PDB entries]
EC 1.13.11.78 2-amino-1-hydroxyethylphosphonate dioxygenase (glycine-forming). [-]
EC 1.13.11.n1 Transferred entry: 1.13.11.74. [-]
EC 1.13.11.n2 Transferred entry: 1.13.11.63. [-]

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