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EC 3.1.1.77 Details
EC number
3.1.1.77
Accepted name
acyloxyacyl hydrolase
Reaction
3-(acyloxy)acyl group of bacterial toxin + H2O = 3-hydroxyacyl group of bacterial toxin + a fatty acid
CAS registry number
110277-64-0
Comment
The substrate is lipid A on the reducing end of the toxic lipopolysaccharide (LPS) of Salmonella typhimurium and related organisms. It consists of diglucosamine, β-D-GlcN-(1→ 6)-D-GlcN, attached by glycosylation on O-6 of its non-reducing residue, phosphorylated on O-4 of this residue and on O-1 of its potentially reducing residue. Both residues carry 3-(acyloxy)acyl groups on N-2 and O-3. The enzyme from human leucocytes detoxifies the lipid by hydrolysing the secondary acyl groups from O-3 of the 3-hydroxyacyl groups on the disaccharide (LPS). It also possesses a wide range of phospholipase and acyltransferase activities [e.g. EC 3.1.1.4 (phospholipase A2), EC 3.1.1.5 (lysophospholipase), EC 3.1.1.32 (phospholipase A1) and EC 3.1.1.52 (phosphatidylinositol deacylase)], hydrolysing diacylglycerol and phosphatidyl compounds, but not triacylglycerols. It has a preference for saturated C12-C16 acyl groups.
History
created 2001
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EC Tree
1 Oxidoreductases
2 Transferases
3 Hydrolases
3.1 Acting on ester bonds
3.1.1 Carboxylic-ester hydrolases
3.1.1.1 carboxylesterase
3.1.1.2 arylesterase
3.1.1.3 triacylglycerol lipase
3.1.1.4 phospholipase A2
3.1.1.5 lysophospholipase
3.1.1.6 acetylesterase
3.1.1.7 acetylcholinesterase
3.1.1.8 cholinesterase
3.1.1.9 created 1961, deleted 1972
3.1.1.10 tropinesterase
3.1.1.11 pectinesterase
3.1.1.12 created 1961, deleted 1972
3.1.1.13 sterol esterase
3.1.1.14 chlorophyllase
3.1.1.15 L-arabinonolactonase
3.1.1.16 created 1961, deleted 1972
3.1.1.17 gluconolactonase
3.1.1.18 created 1961, deleted 1982
3.1.1.19 uronolactonase
3.1.1.20 tannase
3.1.1.21 retinyl-palmitate esterase
3.1.1.22 hydroxybutyrate-dimer hydrolase
3.1.1.23 acylglycerol lipase
3.1.1.24 3-oxoadipate enol-lactonase
3.1.1.25 1,4-lactonase
3.1.1.26 galactolipase
3.1.1.27 4-pyridoxolactonase
3.1.1.28 acylcarnitine hydrolase
3.1.1.29 aminoacyl-tRNA hydrolase
3.1.1.30 D-arabinonolactonase
3.1.1.31 6-phosphogluconolactonase
3.1.1.32 phospholipase A1
3.1.1.33 6-acetylglucose deacetylase
3.1.1.34 lipoprotein lipase
3.1.1.35 dihydrocoumarin hydrolase
3.1.1.36 limonin-D-ring-lactonase
3.1.1.37 steroid-lactonase
3.1.1.38 triacetate-lactonase
3.1.1.39 actinomycin lactonase
3.1.1.40 orsellinate-depside hydrolase
3.1.1.41 cephalosporin-C deacetylase
3.1.1.42 chlorogenate hydrolase
3.1.1.43 α-amino-acid esterase
3.1.1.44 4-methyloxaloacetate esterase
3.1.1.45 carboxymethylenebutenolidase
3.1.1.46 deoxylimonate A-ring-lactonase
3.1.1.47 1-alkyl-2-acetylglycerophosphocholine esterase
3.1.1.48 fusarinine-C ornithinesterase
3.1.1.49 sinapine esterase
3.1.1.50 wax-ester hydrolase
3.1.1.51 phorbol-diester hydrolase
3.1.1.52 phosphatidylinositol deacylase
3.1.1.53 sialate O-acetylesterase
3.1.1.54 acetoxybutynylbithiophene deacetylase
3.1.1.55 acetylsalicylate deacetylase
3.1.1.56 methylumbelliferyl-acetate deacetylase
3.1.1.57 2-pyrone-4,6-dicarboxylate lactonase
3.1.1.58 N-acetylgalactosaminoglycan deacetylase
3.1.1.59 juvenile-hormone esterase
3.1.1.60 bis(2-ethylhexyl)phthalate esterase
3.1.1.61 protein-glutamate methylesterase
3.1.1.62 created 1989, deleted 1992
3.1.1.63 11-cis-retinyl-palmitate hydrolase
3.1.1.64 retinoid isomerohydrolase
3.1.1.65 L-rhamnono-1,4-lactonase
3.1.1.66 5-(3,4-diacetoxybut-1-ynyl)-2,2′-bithiophene deacetylase
3.1.1.67 fatty-acyl-ethyl-ester synthase
3.1.1.68 xylono-1,4-lactonase
3.1.1.69 created 1992, deleted 2002
3.1.1.70 cetraxate benzylesterase
3.1.1.71 acetylalkylglycerol acetylhydrolase
3.1.1.72 acetylxylan esterase
3.1.1.73 feruloyl esterase
3.1.1.74 cutinase
3.1.1.75 poly(3-hydroxybutyrate) depolymerase
3.1.1.76 poly(3-hydroxyoctanoate) depolymerase
3.1.1.77 acyloxyacyl hydrolase
3.1.1.78 polyneuridine-aldehyde esterase
3.1.1.79 hormone-sensitive lipase
3.1.1.80 acetylajmaline esterase
3.1.1.81 quorum-quenching N-acyl-homoserine lactonase
3.1.1.82 pheophorbidase
3.1.1.83 monoterpene ε-lactone hydrolase
3.1.1.84 cocaine esterase
3.1.1.85 pimelyl-[acyl-carrier protein] methyl ester esterase
3.1.1.86 rhamnogalacturonan acetylesterase
3.1.1.87 fumonisin B1 esterase
3.1.1.88 pyrethroid hydrolase
3.1.1.89 protein phosphatase methylesterase-1
3.1.1.90 all-trans-retinyl ester 13-cis isomerohydrolase
3.1.1.91 2-oxo-3-(5-oxofuran-2-ylidene)propanoate lactonase
3.1.1.92 4-sulfomuconolactone hydrolase
3.1.1.93 mycophenolic acid acyl-glucuronide esterase
3.1.1.94 versiconal hemiacetal acetate esterase
3.1.1.95 aclacinomycin methylesterase
3.1.1.96 D-aminoacyl-tRNA deacylase
3.1.1.97 methylated diphthine methylhydrolase
3.1.1.98 [Wnt protein] O-palmitoleoyl-L-serine hydrolase
3.1.1.99 6-deoxy-6-sulfogluconolactonase
3.1.1.100 chlorophyllide a hydrolase
3.1.1.101 poly(ethylene terephthalate) hydrolase
3.1.1.102 mono(ethylene terephthalate) hydrolase
3.1.1.103 teichoic acid D-alanine hydrolase
3.1.1.104 5-phospho-D-xylono-1,4-lactonase
3.1.1.105 3-O-acetylpapaveroxine carboxylesterase
3.1.1.106 O-acetyl-ADP-ribose deacetylase
3.1.1.107 apo-salmochelin esterase
3.1.1.108 iron(III)-enterobactin esterase
3.1.1.109 iron(III)-salmochelin esterase
3.1.1.110 xylono-1,5-lactonase
3.1.1.111 phosphatidylserine sn-1 acylhydrolase
3.1.1.112 isoamyl acetate esterase
3.1.1.113 ethyl acetate hydrolase
3.1.1.114 methyl acetate hydrolase
3.1.1.115 D-apionolactonase
3.1.1.116 sn-1-specific diacylglycerol lipase
3.1.1.117 (4-O-methyl)-D-glucuronate—lignin esterase
3.1.1.118 phospholipid sn-1 acylhydrolase
3.1.1.119 exo-acting protein-α-N-acetylgalactosaminidase
3.1.2 Thioester hydrolases
3.1.2.1 acetyl-CoA hydrolase
3.1.2.2 palmitoyl-CoA hydrolase
3.1.2.3 succinyl-CoA hydrolase
3.1.2.4 3-hydroxyisobutyryl-CoA hydrolase
3.1.2.5 hydroxymethylglutaryl-CoA hydrolase
3.1.2.6 hydroxyacylglutathione hydrolase
3.1.2.7 glutathione thiolesterase
3.1.2.8 created 1961, deleted 1978
3.1.2.9 created 1961, deleted 1964
3.1.2.10 formyl-CoA hydrolase
3.1.2.11 acetoacetyl-CoA hydrolase
3.1.2.12 S-formylglutathione hydrolase
3.1.2.13 S-succinylglutathione hydrolase
3.1.2.14 oleoyl-[acyl-carrier-protein] hydrolase
3.1.2.15 ubiquitin thiolesterase
3.1.2.16 citrate-lyase deacetylase
3.1.2.17 (S)-methylmalonyl-CoA hydrolase
3.1.2.18 ADP-dependent short-chain-acyl-CoA hydrolase
3.1.2.19 ADP-dependent medium-chain-acyl-CoA hydrolase
3.1.2.20 acyl-CoA hydrolase
3.1.2.21 dodecanoyl-[acyl-carrier-protein] hydrolase
3.1.2.22 palmitoyl[protein] hydrolase
3.1.2.23 4-hydroxybenzoyl-CoA thioesterase
3.1.2.24 created 2000, deleted 2005
3.1.2.25 phenylacetyl-CoA hydrolase
3.1.2.26 bile-acid-CoA hydrolase
3.1.2.27 choloyl-CoA hydrolase
3.1.2.28 1,4-dihydroxy-2-naphthoyl-CoA hydrolase
3.1.2.29 fluoroacetyl-CoA thioesterase
3.1.2.30 (3S)-malyl-CoA thioesterase
3.1.2.31 dihydromonacolin L-[lovastatin nonaketide synthase] thioesterase
3.1.2.32 2-aminobenzoylacetyl-CoA thioesterase
3.1.3 Phosphoric-monoester hydrolases
3.1.4 Phosphoric-diester hydrolases
3.1.5 Triphosphoric-monoester hydrolases
3.1.6 Sulfuric-ester hydrolases
3.1.7 Diphosphoric-monoester hydrolases
3.1.8 Phosphoric-triester hydrolases
3.1.11 Exodeoxyribonucleases producing 5′-phosphomonoesters
3.1.12 Exodeoxyribonucleases producing 3′-phosphomonoesters
3.1.13 Exoribonucleases producing 5′-phosphomonoesters
3.1.14 Exoribonucleases producing 3'-phosphomonoesters
3.1.15 Exonucleases that are active with either ribo- or deoxyribonucleic acids and produce 5'-phosphomonoesters
3.1.16 Exonucleases that are active with either ribo- or deoxyribonucleic acids and produce 3'-phosphomonoesters
3.1.21 Endodeoxyribonucleases producing 5'-phosphomonoesters
3.1.22 Endodeoxyribonucleases producing 3'-phosphomonoesters
3.1.23 Site-specific endodeoxyribonucleases: cleavage is sequence specific (deleted sub-subclass)
3.1.24 Site specific endodeoxyribonucleases: cleavage is not sequence specific (deleted sub-subclass)
3.1.25 Site-specific endodeoxyribonucleases that are specific for altered bases
3.1.26 Endoribonucleases producing 5'-phosphomonoesters
3.1.27 Endoribonucleases producing 3'-phosphomonoesters
3.1.30 Endoribonucleases that are active with either ribo- or deoxyribonucleic acids and produce 5'-phosphomonoesters
3.1.31 Endoribonucleases that are active with either ribo- or deoxyribonucleic acids and produce 3'-phosphomonoesters
3.2 Glycosylases
3.3 Acting on ether bonds
3.4 Acting on peptide bonds (peptidases)
3.5 Acting on carbon-nitrogen bonds, other than peptide bonds
3.6 Acting on acid anhydrides
3.7 Acting on carbon-carbon bonds
3.8 Acting on halide bonds
3.9 Acting on phosphorus-nitrogen bonds
3.10 Acting on sulfur-nitrogen bonds
3.11 Acting on carbon-phosphorus bonds
3.12 Acting on sulfur-sulfur bonds
3.13 Acting on carbon-sulfur bonds
4 Lyases
5 Isomerases
6 Ligases
7 Translocases