_EC 3.1.1.- Carboxylic ester hydrolases. 2,187 PDB entries  
EC 3.-.-.- Hydrolases. [52,127 PDB entries]
EC 3.1.-.- Acting on ester bonds. [12,902 PDB entries]
EC 3.1.1.- Carboxylic ester hydrolases. [2,187 PDB entries]
EC 3.1.1.1 carboxylesterase. [119 PDB entries]
EC 3.1.1.2 arylesterase. [24 PDB entries]
EC 3.1.1.3 triacylglycerol lipase. [230 PDB entries]
EC 3.1.1.4 phospholipase A2. [325 PDB entries]
EC 3.1.1.5 lysophospholipase. [29 PDB entries]
EC 3.1.1.6 acetylesterase. [18 PDB entries]
EC 3.1.1.7 acetylcholinesterase. [318 PDB entries]
EC 3.1.1.8 cholinesterase. [94 PDB entries]
EC 3.1.1.9 Deleted entry. [-]
EC 3.1.1.10 tropinesterase. [-]
EC 3.1.1.11 pectinesterase. [15 PDB entries]
EC 3.1.1.12 Transferred entry: 3.1.1.1. [-]
EC 3.1.1.13 sterol esterase. [30 PDB entries]
EC 3.1.1.14 chlorophyllase. [1 PDB entries]
EC 3.1.1.15 L-arabinonolactonase. [-]
EC 3.1.1.16 Transferred entry: 3.1.1.24 and 5.3.3.4. [-]
EC 3.1.1.17 gluconolactonase. [24 PDB entries]
EC 3.1.1.18 Transferred entry: 3.1.1.17. [-]
EC 3.1.1.19 uronolactonase. [-]
EC 3.1.1.20 tannase. [2 PDB entries]
EC 3.1.1.21 Deleted entry. [-]
EC 3.1.1.22 hydroxybutyrate-dimer hydrolase. [-]
EC 3.1.1.23 acylglycerol lipase. [38 PDB entries]
EC 3.1.1.24 3-oxoadipate enol-lactonase. [1 PDB entries]
EC 3.1.1.25 1,4-lactonase. [2 PDB entries]
EC 3.1.1.26 galactolipase. [5 PDB entries]
EC 3.1.1.27 4-pyridoxolactonase. [3 PDB entries]
EC 3.1.1.28 acylcarnitine hydrolase. [2 PDB entries]
EC 3.1.1.29 peptidyl-tRNA hydrolase. [107 PDB entries]
EC 3.1.1.30 D-arabinonolactonase. [-]
EC 3.1.1.31 6-phosphogluconolactonase. [20 PDB entries]
EC 3.1.1.32 phospholipase A1. [37 PDB entries]
EC 3.1.1.33 6-acetylglucose deacetylase. [-]
EC 3.1.1.34 lipoprotein lipase. [7 PDB entries]
EC 3.1.1.35 dihydrocoumarin hydrolase. [-]
EC 3.1.1.36 limonin-D-ring-lactonase. [-]
EC 3.1.1.37 steroid-lactonase. [-]
EC 3.1.1.38 triacetate-lactonase. [-]
EC 3.1.1.39 actinomycin lactonase. [-]
EC 3.1.1.40 orsellinate-depside hydrolase. [-]
EC 3.1.1.41 cephalosporin-C deacetylase. [12 PDB entries]
EC 3.1.1.42 chlorogenate hydrolase. [-]
EC 3.1.1.43 alpha-amino-acid esterase. [5 PDB entries]
EC 3.1.1.44 4-methyloxaloacetate esterase. [-]
EC 3.1.1.45 carboxymethylenebutenolidase. [18 PDB entries]
EC 3.1.1.46 deoxylimonate A-ring-lactonase. [-]
EC 3.1.1.47 1-alkyl-2-acetylglycerophosphocholine esterase. [50 PDB entries]
EC 3.1.1.48 fusarinine-C ornithinesterase. [-]
EC 3.1.1.49 sinapine esterase. [-]
EC 3.1.1.50 wax-ester hydrolase. [-]
EC 3.1.1.51 phorbol-diester hydrolase. [-]
EC 3.1.1.52 phosphatidylinositol deacylase. [-]
EC 3.1.1.53 sialate O-acetylesterase. [31 PDB entries]
EC 3.1.1.54 acetoxybutynylbithiophene deacetylase. [-]
EC 3.1.1.55 acetylsalicylate deacetylase. [-]
EC 3.1.1.56 methylumbelliferyl-acetate deacetylase. [20 PDB entries]
EC 3.1.1.57 2-pyrone-4,6-dicarboxylate lactonase. [5 PDB entries]
EC 3.1.1.58 N-acetylgalactosaminoglycan deacetylase. [-]
EC 3.1.1.59 juvenile-hormone esterase. [-]
EC 3.1.1.60 bis(2-ethylhexyl)phthalate esterase. [-]
EC 3.1.1.61 protein-glutamate methylesterase. [7 PDB entries]
EC 3.1.1.62 Transferred entry: 3.5.1.47. [-]
EC 3.1.1.63 11-cis-retinyl-palmitate hydrolase. [-]
EC 3.1.1.64 retinoid isomerohydrolase. [19 PDB entries]
EC 3.1.1.65 L-rhamnono-1,4-lactonase. [-]
EC 3.1.1.66 5-(3,4-diacetoxybut-1-ynyl)-2,2'-bithiophene deacetylase. [-]
EC 3.1.1.67 fatty-acyl-ethyl-ester synthase. [-]
EC 3.1.1.68 xylono-1,4-lactonase. [-]
EC 3.1.1.69 Transferred entry: 3.5.1.89. [-]
EC 3.1.1.70 cetraxate benzylesterase. [-]
EC 3.1.1.71 acetylalkylglycerol acetylhydrolase. [-]
EC 3.1.1.72 acetylxylan esterase. [40 PDB entries]
EC 3.1.1.73 feruloyl esterase. [24 PDB entries]
EC 3.1.1.74 cutinase. [115 PDB entries]
EC 3.1.1.75 poly(3-hydroxybutyrate) depolymerase. [8 PDB entries]
EC 3.1.1.76 poly(3-hydroxyoctanoate) depolymerase. [-]
EC 3.1.1.77 acyloxyacyl hydrolase. [8 PDB entries]
EC 3.1.1.78 polyneuridine-aldehyde esterase. [3 PDB entries]
EC 3.1.1.79 hormone-sensitive lipase. [1 PDB entries]
EC 3.1.1.80 acetylajmaline esterase. [-]
EC 3.1.1.81 quorum-quenching N-acyl-homoserine lactonase. [21 PDB entries]
EC 3.1.1.82 pheophorbidase. [-]
EC 3.1.1.83 monoterpene epsilon-lactone hydrolase. [-]
EC 3.1.1.84 cocaine esterase. [16 PDB entries]
EC 3.1.1.85 pimeloyl-[acyl-carrier protein] methyl ester esterase. [4 PDB entries]
EC 3.1.1.86 rhamnogalacturonan acetylesterase. [5 PDB entries]
EC 3.1.1.87 fumonisin B1 esterase. [1 PDB entries]
EC 3.1.1.88 pyrethroid hydrolase. [-]
EC 3.1.1.89 protein phosphatase methylesterase-1. [3 PDB entries]
EC 3.1.1.90 all-trans-retinyl ester 13-cis isomerohydrolase. [-]
EC 3.1.1.91 2-oxo-3-(5-oxofuran-2-ylidene)propanoate lactonase. [-]
EC 3.1.1.92 4-sulfomuconolactone hydrolase. [-]
EC 3.1.1.93 mycophenolic acid acyl-glucuronide esterase. [3 PDB entries]
EC 3.1.1.94 versiconal hemiacetal acetate esterase. [-]
EC 3.1.1.95 aclacinomycin methylesterase. [2 PDB entries]
EC 3.1.1.96 D-aminoacyl-tRNA deacylase. [23 PDB entries]
EC 3.1.1.97 methylated diphthine methylhydrolase. [-]
EC 3.1.1.98 [Wnt protein] O-palmitoleoyl-L-serine hydrolase. [143 PDB entries]
EC 3.1.1.99 6-deoxy-6-sulfogluconolactonase. [-]
EC 3.1.1.100 chlorophyllide a hydrolase. [-]
EC 3.1.1.101 poly(ethylene terephthalate) hydrolase. [100 PDB entries]
EC 3.1.1.102 mono(ethylene terephthalate) hydrolase. [10 PDB entries]
EC 3.1.1.103 teichoic acid D-alanine hydrolase. [1 PDB entries]
EC 3.1.1.104 5-phospho-D-xylono-1,4-lactonase. [2 PDB entries]
EC 3.1.1.105 3-O-acetylpapaveroxine carboxylesterase. [-]
EC 3.1.1.106 O-acetyl-ADP-ribose deacetylase. [6 PDB entries]
EC 3.1.1.107 apo-salmochelin esterase. [-]
EC 3.1.1.108 iron(III) enterobactin esterase. [8 PDB entries]
EC 3.1.1.109 iron(III) salmochelin esterase. [-]
EC 3.1.1.110 xylono-1,5-lactonase. [3 PDB entries]
EC 3.1.1.111 phosphatidylserine sn-1 acylhydrolase. [-]
EC 3.1.1.112 isoamyl acetate esterase. [1 PDB entries]
EC 3.1.1.113 ethyl acetate hydrolase. [2 PDB entries]
EC 3.1.1.114 methyl acetate hydrolase. [-]
EC 3.1.1.115 D-apionolactonase. [-]
EC 3.1.1.116 sn-1-specific diacylglycerol lipase. [-]
EC 3.1.1.117 (4-O-methyl)-D-glucuronate--lignin esterase. [12 PDB entries]
EC 3.1.1.118 phospholipid sn-1 acylhydrolase. [-]
EC 3.1.1.119 Deleted entry. [-]
EC 3.1.1.120 L-fucono-1,5-lactonase. [4 PDB entries]
EC 3.1.1.121 ergosteryl-3beta-O-L-aspartate hydrolase. [-]
EC 3.1.1.122 carbendazim hydrolysing esterase. [-]
EC 3.1.1.123 dehydropreakuammicine esterase. [-]
EC 3.1.1.n1 Transferred entry: 3.5.1.103. [-]
EC 3.1.1.n2 protein-S-isoprenylcysteine alpha-carbonyl methylesterase. [-]

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