Aminoacyl-tRNA hydrolase

In enzymology, an aminoacyl-tRNA hydrolase (EC 3.1.1.29) is an enzyme that catalyzes the chemical reaction

N-Substituted aminoacyl-tRNA + H2O N-substituted amino acid + tRNA
aminoacyl-tRNA hydrolase
Identifiers
EC number3.1.1.29
CAS number9054-98-2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

Thus, the two substrates of this enzyme are N-Substituted aminoacyl-tRNA and H2O, whereas its two products are N-substituted amino acid and tRNA.

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is aminoacyl-tRNA aminoacylhydrolase. Other names in common use include aminoacyl-transfer ribonucleate hydrolase, N-substituted aminoacyl transfer RNA hydrolase, and peptidyl-tRNA hydrolase.

Structural studies

As of late 2007, 9 structures have been solved for this class of enzymes, with PDB accession codes 1RYB, 1WN2, 1XTY, 2D3K, 2E1B, 2PTH, 2Z2I, 2Z2J, and 2Z2K.

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References

    • Jost JP, Bock RM (1969). "Enzymatic hydrolysis of N-substituted aminoacyl transfer ribonucleic acid in yeast". J. Biol. Chem. 244 (21): 5866–73. PMID 4981785.


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