Description
| Product Name: | Human KARS Recombinant Protein |
| Product Code: | RPPB1855 |
| Size: | 20µg |
| Species: | Human |
| Target: | KARS |
| Synonyms: | Lysine--tRNA ligase, Lysyl-tRNA synthetase, LysRS, KARS, KIAA0070, KRS, KARS2, CMTRIB. |
| Source: | Escherichia Coli |
| Physical Appearance: | Sterile Filtered colorless solution. |
| Formulation: | KARS protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH8.0), 20% glycerol, 0.1M NaCl and 1mM DTT. |
| Stability: | Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles. |
| Purity: | Greater than 95.0% as determined by SDS-PAGE. |
| Amino Acid Sequence: | MGSSHHHHHH SSGLVPRGSH MGSGVGPEEE SVDPNQYYKI RSQAIHQLKV NGEDPYPHKF HVDISLTDFI QKYSHLQPGD HLTDITLKVA GRIHAKRASG GKLIFYDLRG EGVKLQVMAN SRNYKSEEEF IHINNKLRRG DIIGVQGNPG KTKKGELSII PYEITLLSPC LHMLPHLHFG LKDKETRYRQ RYLDLILNDF VRQKFIIRSK IITYIRSFLD ELGFLEIETP MMNIIPGGAV AKPFITYHNE LDMNLYMRIA PELYHKMLVV GGIDRVYEIG RQFRNEGIDL THNPEFTTCE FYMAYADYHD LMEITEKMVS GMVKHITGSY KVTYHPDGPE GQAYDVDFTP PFRRINMVEE LEKALGMKLP ETNLFETEET RKILDDICVA KAVECPPPRT TARLLDKLVG EFLEVTCINP TFICDHPQIM SPLAKWHRSK EGLTERFELF VMKKEICNAY TELNDPMRQR QLFEEQAKAK AAGDDEAMFI DENFCTALEY GLPPTAGWGM GIDRVAMFLT DSNNIKEVLL FPAMKPEDKK ENVATTDTLE STTVGTSV |
Lysyl-tRNA synthetase (KARS) is a member of the class-II aminoacyl-tRNA synthetase family. KARS exists as both mitochondrial and cytoplasmic isoforms produced by alternative splicing, and believed to have a role in autoimmune diseases, such as polymyositis or dermatomyositis. The KARS protein functions to catalyze the aminoacylation of tRNAs by their corresponding amino acids, so linking amino acids with tRNA-contained nucleotide triplets.
KARS Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 558 amino acids (63-597 a.a.) and having a molecular mass of 63.7kDa.KARS is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
| UniProt Protein Function: | KARS: Catalyzes the specific attachment of an amino acid to its cognate tRNA in a 2 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. When secreted, acts as a signaling molecule that induces immune response through the activation of monocyte/macrophages. Catalyzes the synthesis of diadenosine oligophosphate (Ap4A), a signaling molecule involved in the activation of MITF transcriptional activity. Interacts with HIV-1 virus GAG protein, facilitating the selective packaging of tRNA(3)(Lys), the primer for reverse transcription initiation. Homodimer; also part of a multisubunit complex that groups AIMP1, AIMP2, EEF1A1 and tRNA ligases for Arg, Asp, Glu, Gln, Ile, Leu, Lys, Met and Pro. Interacts with AIMP2 (via N- terminus) and MITF. Interacts directly with HIV-1 virus GAG protein. Up-regulated by DARS and EEF1A1, but not by AIMP2. Belongs to the class-II aminoacyl-tRNA synthetase family. 2 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Mitochondrial; EC 6.1.1.6; Translation; Ligase Chromosomal Location of Human Ortholog: 16q23.1 Cellular Component: cytoplasm; cytosol; microtubule cytoskeleton; mitochondrial matrix; mitochondrion Molecular Function:lysine-tRNA ligase activity; protein binding Biological Process: lysyl-tRNA aminoacylation; tRNA aminoacylation for protein translation Disease: Charcot-marie-tooth Disease, Recessive Intermediate B; Deafness, Autosomal Recessive 89 |
| NCBI Summary: | Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. Lysyl-tRNA synthetase is a homodimer localized to the cytoplasm which belongs to the class II family of tRNA synthetases. It has been shown to be a target of autoantibodies in the human autoimmune diseases, polymyositis or dermatomyositis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008] |
| UniProt Code: | Q15046 |
| NCBI GenInfo Identifier: | 20178333 |
| NCBI Gene ID: | 3735 |
| NCBI Accession: | Q15046.3 |
| UniProt Secondary Accession: | Q15046,O14946, Q96J25, Q9HB23, A8MSK1, D3DUK4, |
| UniProt Related Accession: | Q15046 |
| Molecular Weight: | 71,497 Da |
| NCBI Full Name: | Lysine--tRNA ligase |
| NCBI Synonym Full Names: | lysyl-tRNA synthetase |
| NCBI Official Symbol: | KARS�� |
| NCBI Official Synonym Symbols: | KRS; KARS1; KARS2; CMTRIB; DFNB89�� |
| NCBI Protein Information: | lysine--tRNA ligase |
| UniProt Protein Name: | Lysine--tRNA ligase |
| UniProt Synonym Protein Names: | Lysyl-tRNA synthetase; LysRS |
| UniProt Gene Name: | KARS�� |
| UniProt Entry Name: | SYK_HUMAN |
