aspartate + tRNA(Asp) + ATP => Asp-tRNA(Asp) + AMP + pyrophosphate

Stable Identifier
Reaction [transition]
Homo sapiens
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DARS2 (mitochondrial aspartyl tRNA synthetase) catalyzes the reaction of aspartate, mitochondrial tRNA(Asp), and ATP to form Asp tRNA(Asp), AMP, and pyrophosphate. The enzyme, a class II tRNA synthetase, is a homodimer (Bonnefond et al. 2005). Homozygosity for DARS2 mutations is associated with leukoencephalopathy with brainstem and spinal cord involvement plus lactate elevation (Scheper et al 2007).

Literature References
PubMed ID Title Journal Year
15779907 Toward the full set of human mitochondrial aminoacyl-tRNA synthetases: characterization of AspRS and TyrRS

Bonnefond, L, Fender, A, Rudinger-Thirion, J, Giege, R, Florentz, C, Sissler, M

Biochemistry 2005
17384640 Mitochondrial aspartyl-tRNA synthetase deficiency causes leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation

Scheper, GC, van der Klok, T, van Andel, RJ, van Berkel, CG, Sissler, M, Smet, J, Muravina, TI, Serkov, SV, Uziel, G, Bugiani, M, Schiffmann, R, Krageloh-Mann, I, Smeitink, JA, Florentz, C, Van Coster, R, Pronk, JC, van der Knaap, MS

Nat Genet 2007
Catalyst Activity

aspartate-tRNA ligase activity of DARS2 dimer [mitochondrial matrix]

Orthologous Events
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