Lysyl-tRNA synthetase (Protein name
), SYK_HUMAN from NCBI database.
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Gene name:
KARS(KIAA0070);
Protein name:
Lysyl-tRNA synthetase;
Alternative:
Lysine--tRNA ligase(LysRS);
Organism:
Human (Homo sapiens).
General Annotation
Sub Unit:
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.
Function:
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.
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Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM CYTOPLASMIC)
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Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM MITOCHONDRIAL);SUBCELLULAR LOCATION;VARIANT SER-595
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Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM CYTOPLASMIC);VARIANT SER-595
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Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM CYTOPLASMIC)
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Cited for: PROTEIN SEQUENCE OF 2-10; 112-127; 142-148; 231-241; 306-314 AND 486-492;CLEAVAGE OF INITIATOR METHIONINE;ACETYLATION AT ALA-2;IDENTIFICATION BY MASS SPECTROMETRY (ISOFORM CYTOPLASMIC)
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Cited for: SUBCELLULAR LOCATION;MUTAGENESIS OF 1-MET--GLY-65;INTERACTION WITH AIMP2 AND HIV-1 GAG
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Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT ALA-2;IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
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Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-88 AND LYS-141;IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
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Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT ALA-2;IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
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Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT ALA-2;IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
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Cited for: X-RAY CRYSTALLOGRAPHY (2.31 ANGSTROMS) OF 70-581 IN COMPLEX WITH SUBSTRATE AND ATP
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Cited for: VARIANTS CMTRIB HIS-105 AND MET-274;VARIANT SER-595