EC 4.2.1

EC 4.2.1.1 carbonic anhydrase
EC 4.2.1.2 fumarate hydratase
EC 4.2.1.3 aconitate hydratase
EC 4.2.1.4 deleted now known to be a partial reaction catalysed by EC 4.2.1.3
EC 4.2.1.5 arabinonate dehydratase
EC 4.2.1.6 galactonate dehydratase
EC 4.2.1.7 altronate dehydratase
EC 4.2.1.8 mannonate dehydratase
EC 4.2.1.9 dihydroxy-acid dehydratase
EC 4.2.1.10 3-dehydroquinate dehydratase
EC 4.2.1.11 phosphopyruvate hydratase
EC 4.2.1.12 phosphogluconate dehydratase
EC 4.2.1.13 now EC 4.3.1.17
EC 4.2.1.14 now EC 4.3.1.17
EC 4.2.1.15 now EC 4.4.1.1
EC 4.2.1.16 now EC 4.3.1.17
EC 4.2.1.17 enoyl-CoA hydratase
EC 4.2.1.18 methylglutaconyl-CoA hydratase
EC 4.2.1.19 imidazoleglycerol-phosphate dehydratase
EC 4.2.1.20 tryptophan synthase
EC 4.2.1.21 now EC 4.2.1.22
EC 4.2.1.22 cystathionine β-synthase
EC 4.2.1.23 deleted
EC 4.2.1.24 porphobilinogen synthase
EC 4.2.1.25 L-arabinonate dehydratase
EC 4.2.1.26 now EC 4.3.1.9
EC 4.2.1.27 acetylenecarboxylate hydratase
EC 4.2.1.28 propanediol dehydratase
EC 4.2.1.29 now EC 4.99.1.6
EC 4.2.1.30 glycerol dehydratase
EC 4.2.1.31 maleate hydratase
EC 4.2.1.32 L(+)-tartrate dehydratase
EC 4.2.1.33 3-isopropylmalate dehydratase
EC 4.2.1.34 (S)-2-methylmalate dehydratase
EC 4.2.1.35 (R)-2-methylmalate dehydratase
EC 4.2.1.36 homoaconitate hydratase
EC 4.2.1.37 now EC 3.3.2.4
EC 4.2.1.38 now EC 4.3.1.17
EC 4.2.1.39 gluconate dehydratase
EC 4.2.1.40 glucarate dehydratase
EC 4.2.1.41 5-dehydro-4-deoxyglucarate dehydratase
EC 4.2.1.42 galactarate dehydratase
EC 4.2.1.43 2-dehydro-3-deoxy-L-arabinonate dehydratase
EC 4.2.1.44 myo-inosose-2 dehydratase
EC 4.2.1.45 CDP-glucose 4,6-dehydratase
EC 4.2.1.46 dTDP-glucose 4,6-dehydratase
EC 4.2.1.47 GDP-mannose 4,6-dehydratase
EC 4.2.1.48 D-glutamate cyclase
EC 4.2.1.49 urocanate hydratase
EC 4.2.1.50 pyrazolylalanine synthase
EC 4.2.1.51 prephenate dehydratase
EC 4.2.1.52 now EC 4.3.3.7
EC 4.2.1.53 oleate hydratase
EC 4.2.1.54 lactoyl-CoA dehydratase
EC 4.2.1.55 3-hydroxybutyryl-CoA dehydratase
EC 4.2.1.56 itaconyl-CoA hydratase
EC 4.2.1.57 isohexenylglutaconyl-CoA hydratase
EC 4.2.1.58 deleted now covered by EC 4.2.1.59
EC 4.2.1.59 3-hydroxyacyl-[acyl-carrier-protein] dehydratase
EC 4.2.1.60 deleted now covered by EC 4.2.1.59
EC 4.2.1.61 deleted now covered by EC 4.2.1.59
EC 4.2.1.62 5α-hydroxysteroid dehydratase
EC 4.2.1.63 now EC 3.3.2.3
EC 4.2.1.64 now EC 3.3.2.3
EC 4.2.1.65 3-cyanoalanine hydratase
EC 4.2.1.66 cyanide hydratase
EC 4.2.1.67 D-fuconate dehydratase
EC 4.2.1.68 L-fuconate dehydratase
EC 4.2.1.69 cyanamide hydratase
EC 4.2.1.70 pseudouridylate synthase
EC 4.2.1.71 identical to EC 4.2.1.27
EC 4.2.1.72 now EC 4.1.1.78
EC 4.2.1.73 protoaphin-aglucone dehydratase (cyclizing)
EC 4.2.1.74 medium-chain-enoyl-CoA hydratase
EC 4.2.1.75 uroporphyrinogen-III synthase
EC 4.2.1.76 UDP-glucose 4,6-dehydratase
EC 4.2.1.77 now EC 3.5.99.14
EC 4.2.1.79 2-methylcitrate dehydratase
EC 4.2.1.80 2-oxopent-4-enoate hydratase
EC 4.2.1.81 D(–)-tartrate dehydratase
EC 4.2.1.82 xylonate dehydratase
EC 4.2.1.83 4-oxalmesaconate hydratase
EC 4.2.1.84 nitrile hydratase
EC 4.2.1.85 dimethylmaleate hydratase
EC 4.2.1.86 deleted, identical to EC 4.2.1.98
EC 4.2.1.87 octopamine dehydratase
EC 4.2.1.88 synephrine dehydratase
EC 4.2.1.89 deleted, due to EC 2.8.3.21 and EC 4.2.1.119
EC 4.2.1.90 L-rhamnonate dehydratase
EC 4.2.1.91 arogenate dehydratase
EC 4.2.1.92 hydroperoxide dehydratase
EC 4.2.1.93 ATP-dependent NAD(P)H-hydrate dehydratase
EC 4.2.1.94 scytalone dehydratase
EC 4.2.1.95 kievitone hydratase
EC 4.2.1.96 4a-hydroxytetrahydrobiopterin dehydratase
EC 4.2.1.97 phaseollidin hydratase
EC 4.2.1.98 16α-hydroxyprogesterone dehydratase
EC 4.2.1.99 2-methylisocitrate dehydratase
EC 4.2.1.100 cyclohexa-1,5-dienecarbonyl-CoA hydratase
EC 4.2.1.101 now EC 4.1.2.61
EC 4.2.1.102 now EC 4.2.1.100
EC 4.2.1.103 cyclohexyl-isocyanide hydratase
EC 4.2.1.104 cyanase
EC 4.2.1.105 2-hydroxyisoflavanone dehydratase
EC 4.2.1.106 bile-acid 7α-dehydratase
EC 4.2.1.107 3α,7α,12αtrihydroxy-5β-cholest-24-enoyl-CoA dehydratase
EC 4.2.1.108 ectoine synthase
EC 4.2.1.109 methylthioribulose 1-phosphate dehydratase
EC 4.2.1.110 aldos-2-ulose dehydratase
EC 4.2.1.111 1,5-anhydro-D-fructose dehydratase
EC 4.2.1.112 acetylene hydratase
EC 4.2.1.113 o-succinylbenzoate synthase
EC 4.2.1.114 methanogen homoaconitase
EC 4.2.1.115 UDP-N-acetylglucosamine 4,6-dehydratase (inverting)
EC 4.2.1.116 3-hydroxypropionyl-CoA dehydratase
EC 4.2.1.117 2-methylcitrate dehydratase (2-methyl-trans-aconitate forming)
EC 4.2.1.118 3-dehydroshikimate dehydratase
EC 4.2.1.119 enoyl-CoA hydratase 2
EC 4.2.1.120 4-hydroxybutanoyl-CoA dehydratase
EC 4.2.1.121 colneleate synthase
EC 4.2.1.122 tryptophan synthase (indole-salvaging)
EC 4.2.1.123 tetrahymanol synthase
EC 4.2.1.124 arabidiol synthase
EC 4.2.1.125 dammarenediol II synthase
EC 4.2.1.126 N-acetylmuramic acid 6-phosphate etherase
EC 4.2.1.127 linalool dehydratase
EC 4.2.1.128 lupan-3β,20-diol synthase
EC 4.2.1.129 squalene—hopanol cyclase
EC 4.2.1.130 D-lactate dehydratase
EC 4.2.1.131 carotenoid 1,2-hydratase
EC 4.2.1.132 2-hydroxyhexa-2,4-dienoate hydratase
EC 4.2.1.133 copal-8-ol diphosphate hydratase
EC 4.2.1.134 very-long-chain (3R)-3-hydroxyacyl-CoA dehydratase
EC 4.2.1.135 UDP-N-acetylglucosamine 4,6-dehydratase (configuration-retaining)
EC 4.2.1.136 ADP-dependent NAD(P)H-hydrate dehydratase
EC 4.2.1.137 sporulenol synthase
EC 4.2.1.138 (+)-caryolan-1-ol synthase
EC 4.2.1.139 pterocarpan synthase
EC 4.2.1.140 gluconate/galactonate dehydratase
EC 4.2.1.141 2-dehydro-3-deoxy-D-arabinonate dehydratase
EC 4.2.1.142 5'-oxoaverantin cyclase
EC 4.2.1.143 versicolorin B synthase
EC 4.2.1.144 3-amino-5-hydroxybenzoate synthase
EC 4.2.1.145 capreomycidine synthase
EC 4.2.1.146 L-galactonate dehydratase
EC 4.2.1.147 5,6,7,8-tetrahydromethanopterin hydro-lyase
EC 4.2.1.148 2-methylfumaryl-CoA hydratase
EC 4.2.1.149 crotonobetainyl-CoA hydratase
EC 4.2.1.150 short-chain-enoyl-CoA hydratase
EC 4.2.1.151 chorismate dehydratase
EC 4.2.1.152 hydroperoxy icosatetraenoate dehydratase
EC 4.2.1.153 3-methylfumaryl-CoA hydratase
EC 4.2.1.154 tetracenomycin F2 cyclase
EC 4.2.1.155 methylthioacryloyl-CoA hydratase
EC 4.2.1.156 L-talarate dehydratase
EC 4.2.1.157 (R)-2-hydroxyisocaproyl-CoA dehydratase
EC 4.2.1.158 galactarate dehydratase (D-threo-forming)
EC 4.2.1.159 dTDP-4-dehydro-6-deoxy-α-D-glucopyranose 2,3-dehydratase
EC 4.2.1.160 2,5-diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one isomerase/dehydratase
EC 4.2.1.161 bisanhydrobacterioruberin hydratase
EC 4.2.1.162 6-deoxy-6-sulfo-D-gluconate dehydratase
EC 4.2.1.163 2-oxo-hept-4-ene-1,7-dioate hydratase
EC 4.2.1.164 dTDP-4-dehydro-2,6-dideoxy-D-glucose 3-dehydratase
EC 4.2.1.165 chlorophyllide a 3¹-hydratase
EC 4.2.1.166 phosphinomethylmalate isomerase
EC 4.2.1.167 (R)-2-hydroxyglutaryl-CoA dehydratase
EC 4.2.1.168 GDP-4-dehydro-6-deoxy-α-D-mannose 3-dehydratase
EC 4.2.1.169 3-vinyl bacteriochlorophyllide d 3¹-hydratase
EC 4.2.1.170 2-(ω-methylthio)alkylmalate dehydratase
EC 4.2.1.171 cis-L-3-hydroxyproline dehydratase
EC 4.2.1.172 trans-4-hydroxy-L-proline dehydratase
EC 4.2.1.173 ent-8α-hydroxylabd-13-en-15-yl diphosphate synthase
EC 4.2.1.174 peregrinol diphosphate synthase
EC 4.2.1.175 (R)-3-(aryl)lactoyl-CoA dehydratase
EC 4.2.1.176 L-lyxonate dehydratase
EC 4.2.1.177 (2S)-3-sulfopropanediol dehydratase
EC 4.2.1.178 difructose-dianhydride-III synthase
EC 4.2.1.179 difructose-anhydride-I synthase
EC 4.2.1.180 (E)-benzylidenesuccinyl-CoA hydratase
EC 4.2.1.181 3-carboxymethyl-3-hydroxy-acyl-[acp] dehydratase
EC 4.2.1.182 phosphomevalonate dehydratase
EC 4.2.1.183 etheroleic acid synthase