Total Price: $0.00
Contact Information
Recombinant Human KARS Protein (His Tag)
SKU: PKSH032720-50
Recombinant Human KARS Protein (His Tag)
| SKU # | PKSH032720 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | KARS, KIAA0070, LysRS, Lysine--tRNA Ligase, Lysyl-tRNA Synthetase |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Ala2-Val597 |
| Accession | Q15046 |
| Calculated Molecular Weight | 69.1 kDa |
| Observed Molecular Weight | 70-90 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles. |
| Shipping | This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C. |
| 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).