Name: Human KARS Recombinant Protein (His Tag)

Synonyms: Lysine–tRNA Ligase;Lysyl-tRNA Synthetase;LysRS;KARS;KIAA0070

Expression host: HEK293 Cells

Sequence: Ala2-Val597

Accesstion: Q15046

Species: Human

Mol_Mass: 69.1 kDa

AP_Mol_Mass: 70-90 kDa

Tag: C-His

Purity: > 95 % as determined by reducing SDS-PAGE.


Storage: Store at

Shipping: This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at

Formulation: Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 100mM NaCl, 1mM DTT, 20% Glycerol, pH 8.0.

Reconstitution: Not Applicable

Background: Lysine-tRNA ligase, also known as Lysyl-tRNA synthetase, LysRS, KARS and KIAA0070, belongs to the class-II aminoacyl-tRNA synthetase family. The N-terminal cytoplasmic domain (1-65) is a functional tRNA-binding domain, which is required for nuclear localization, is involved in the interaction with DARS, but has a repulsive role in the binding to EEF1A1. A central domain (208-259) is involved in homodimerization and is required for interaction with HIV-1 GAG and incorporation into virions. KARS catalyzes the specific attachment of an amino acid to its cognate tRNA in a two step reaction: the amino acid (AA) is first activated by ATP to form AA-AMP and then transferred to the acceptor end of the tRNA. Defects in KARS are the cause of Charcot-Marie-Tooth disease recessive intermediate type B (CMTRIB).

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