KARS Protein, Human (HEK293, His)
Based on 1 Customer Validation
The KARS protein promotes attachment of amino acids to its cognate tRNA through a two-step reaction, inducing immune responses through monocyte/macrophage activation. In microbial infections, it interacts with the HIV-1 GAG protein to enable selective tRNA(3)(Lys) packaging to initiate reverse transcription. KARS Protein, Human (HEK293, His) is the recombinant human-derived KARS protein, expressed by HEK293 , with C-6*His labeled tag.
- Species: Human
- Source: HEK293
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Storage:Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
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Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
The KARS protein promotes attachment of amino acids to its cognate tRNA through a two-step reaction, inducing immune responses through monocyte/macrophage activation. In microbial infections, it interacts with the HIV-1 GAG protein to enable selective tRNA(3)(Lys) packaging to initiate reverse transcription. KARS Protein, Human (HEK293, His) is the recombinant human-derived KARS protein, expressed by HEK293 , with C-6*His labeled tag.
Background
KARS protein is responsible for catalyzing the specific attachment of an amino acid to its cognate tRNA through a two-step reaction: the amino acid is initially activated by ATP to form AA-AMP and then transferred to the acceptor end of the tRNA. In addition to its role in protein synthesis, when secreted, KARS acts as a signaling molecule, inducing immune responses by activating monocyte/macrophages. Furthermore, KARS plays a crucial role in synthesizing the signaling molecule diadenosine tetraphosphate (Ap4A), leading to the disruption of the complex between HINT1 and MITF and the subsequent activation of MITF transcriptional activity. In the context of microbial infection, KARS interacts with the HIV-1 virus GAG protein, facilitating the selective packaging of tRNA(3)(Lys), which serves as the primer for reverse transcription initiation.
Verified Bioactivity
The enzyme activity of this recombinant protein is testing in progress, we cannot offer a guarantee yet.
MCE Validation Data
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Purity - SDS-PAGE
Purity - SDS-PAGE
Technical Parameters
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Species Human
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Source HEK293
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Tag C-6*His
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Accession
Q15046-1 (A2-V597)
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Molecular Construction
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N-term
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KARS (A2-V597)
Accession # Q15046-1 -
6*His
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C-term
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Protein Length
Full Length of Isoform-1
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Synonyms
KARS1; LysRS; Prev. KARS; KIAA0070; Prev. DFNB89; CMTRIB; Lysyl-TRNA Synthetase; DEAPLE; Lysine--TRNA Ligase; LEPID; KARS2; KRS; Lysine TRNA Ligase; Lysyl-TRNA Synthetase 1; Deafness, Autosomal Recessive 89
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AA Sequence
AAVQAAEVKVDGSEPKLSKNELKRRLKAEKKVAEKEAKQKELSEKQLSQATAAATNHTTDNGVGPEEESVDPNQYYKIRSQAIHQLKVNGEDPYPHKFHVDISLTDFIQKYSHLQPGDHLTDITLKVAGRIHAKRASGGKLIFYDLRGEGVKLQVMANSRNYKSEEEFIHINNKLRRGDIIGVQGNPGKTKKGELSIIPYEITLLSPCLHMLPHLHFGLKDKETRYRQRYLDLILNDFVRQKFIIRSKIITYIRSFLDELGFLEIETPMMNIIPGGAVAKPFITYHNELDMNLYMRIAPELYHKMLVVGGIDRVYEIGRQFRNEGIDLTHNPEFTTCEFYMAYADYHDLMEITEKMVSGMVKHITGSYKVTYHPDGPEGQAYDVDFTPPFRRINMVEELEKALGMKLPETNLFETEETRKILDDICVAKAVECPPPRTTARLLDKLVGEFLEVTCINPTFICDHPQIMSPLAKWHRSKEGLTERFELFVMKKEICNAYTELNDPMRQRQLFEEQAKAKAAGDDEAMFIDENFCTALEYGLPPTAGWGMGIDRVAMFLTDSNNIKEVLLFPAMKPEDKKENVATTDTLESTTVGTSV
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Predicted Molecular Mass
69.1 kDa
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Molecular Weight
Approximately 70-90 kDa, based on SDS-PAGE under reducing conditions.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Solution
Supplied as a 0.22 μm filtered solution of 20 mM Tris-HCl, 100 mM NaCl, 1 mM DTT, 20% glycerol, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.
<1 EU/μg, determined by LAL method.
Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Shipping with dry ice.
Documentation
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Data Sheet (239 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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