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- Table of Contents
Facts about Lysine--tRNA ligase.
Catalyzes the synthesis of this signaling molecule diadenosine tetraphosphate (Ap4A), and thus mediates disturbance of the complex between HINT1 and MITF and the concomitant activation of MITF transcriptional activity (PubMed:5338216, PubMed:14975237, PubMed:19524539, PubMed:23159739). .
Human | |
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Gene Name: | KARS1 |
Uniprot: | Q15046 |
Entrez: | 3735 |
Belongs to: |
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class-II aminoacyl-tRNA synthetase family |
Lysine--tRNA ligase
Mass (kDA):
68.048 kDA
Human | |
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Location: | 16q23.1 |
Sequence: | 16; NC_000016.10 (75627724..75647687, complement) |
[Isoform Cytoplasmic]: Cytoplasm, cytosol. Cytoplasm. Nucleus. Cell membrane; Peripheral membrane protein. Secreted. Secretion is induced by TNF-alpha (PubMed:15851690). Cytosolic in quiescent mast cells. Translocates into the nucleus in response to mast cell activation by immunoglobulin E (PubMed:23159739).; [Isoform Mitochondrial]: Mitochondrion.
PMID: 9278442 by Shiba K., et al. Human lysyl-tRNA synthetase accepts nucleotide 73 variants and rescues Escherichia coli double-defective mutant.
PMID: 10952987 by Tolkunova E., et al. The human lysyl-tRNA synthetase gene encodes both the cytoplasmic and mitochondrial enzymes by means of an unusual alternative splicing of the primary transcript.