Aspartate-tRNA Ligase

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In enzymology, an aspartate-tRNA ligase (EC is an enzyme that catalyzes the chemical reaction ATP + L-aspartate + tRNAAsp ⇌ {\displaystyle \rightleftharpoons } AMP + diphosphate + L-aspartyl-tRNAAsp The 3 substrates of this enzyme are ATP, L-aspartate, and tRNA(Asp), whereas its 3 products are AMP, diphosphate, and L-aspartyl-tRNA(Asp). This enzyme belongs to the family of ligases, to be specific those forming carbon-oxygen bonds in aminoacyl-tRNA and related compounds. The systematic name of this enzyme class is L-aspartate:tRNAAsp ligase (AMP-forming). Other names in common use include aspartyl-tRNA synthetase, aspartyl ribonucleic synthetase, aspartyl-transfer RNA synthetase, aspartic acid translase, aspartyl-transfer ribonucleic acid synthetase, and aspartyl ribonucleate synthetase. This enzyme participates in alanine and aspartate metabolism and aminoacyl-trna biosynthesis.
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Aspartate-tRNA ligase
L-aspartate:tRNAAsp ligase (AMP-forming)
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