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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 3.1.8.1

Accepted Name
Aryldialkylphosphatase.
Alternative Name(s)
A-esterase.
Aryltriphosphatase.
Paraoxon hydrolase.
Paraoxonase.
Phosphotriesterase.
Reaction catalysed
An aryl dialkyl phosphate + H(2)O <=> dialkyl phosphate + an aryl alcohol
Cofactor(s)
Divalent cation.
Comment(s)
  • Acts on organophosphorus compounds (such as paraoxon) including esters of phosphonic and phosphinic acids.
  • Inhibited by chelating agents.
  • Previously regarded as identical with EC 3.1.1.2.
Cross-references
PROSITEPDOC01026
BRENDA3.1.8.1
EC2PDB3.1.8.1
ExplorEnz3.1.8.1
PRIAM enzyme-specific profiles3.1.8.1
KEGG Ligand Database for Enzyme Nomenclature3.1.8.1
IUBMB Enzyme Nomenclature3.1.8.1
IntEnz3.1.8.1
MEDLINEFind literature relating to 3.1.8.1
MetaCyc3.1.8.1
UniProtKB/Swiss-Prot
B5BLW5, ARE_SULSF;  P0A434, OPD_BREDI;  P0A433, OPD_SPHSA;  
Q44238, PEPQ_ALTSX;  Q97VT7, PHP_SULSO;  P27169, PON1_HUMAN;  
P52430, PON1_MOUSE;  P27170, PON1_RABIT;  P55159, PON1_RAT;  
Q90952, PON2_CHICK;  Q91090, PON2_MELGA;  Q15166, PON3_HUMAN;  
Q62087, PON3_MOUSE;  Q9BGN0, PON3_RABIT;  Q68FP2, PON3_RAT;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.1.8.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.1.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.-.-.-