Recombinant Human KARS Protein (His Tag)

Specifications

Catalog number

PKSH032720-01

Size / count

10 µg

Dry ice

No

Hazardous

No

Discontinued

No

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) .

Abbreviation

KARS

Synonyms

KARS; KIAA0070; LysRS; Lysine--tRNA Ligase; Lysyl-tRNA Synthetase

UniProt

Q15046

Accession Number

Q15046

Expression System

HEK293 Cells

Tag

C-His

Sequence

Ala2-Val597

Field of Research

Epigenetics and nuclear signal

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 95 % as determined by reducing SDS-PAGE.

Bioactivity

Not validated for activity

Reconstitution

Not Applicable

Shipping Conditions

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.

Storage Conditions

Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.

Calculated Molecular Weight

69.1 kDa

Observed Molecular Weight

70-90 kDa

Formulation

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

Species

Human