Asparagine--tRNA ligase, cytoplasmic

Definition

Catalyzes the attachment of asparagine to tRNA(Asn) in a two-step reaction: asparagine is first activated by ATP to form Asn-AMP and then transferred to the acceptor end of tRNA(Asn). In addition to its essential role in protein synthesis, acts as a signaling molecule that induced migration of CCR3-expressing cells. Has an essential role in the development of the cerebral cortex, being required for proper proliferation of radial glial cells.

References:

[1]. Lu Wang, et al. Loss of NARS1 impairs progenitor proliferation in cortical brain organoids and leads to microcephaly. Nat Commun. 2020 Aug 12;11(1):4038. [Content Brief]

[2]. Joon Sung Park, et al. Unique N-terminal extension domain of human asparaginyl-tRNA synthetase elicits CCR3-mediated chemokine activity. Int J Biol Macromol. 2018 Dec;120(Pt A):835-845. [Content Brief]

[3]. M Beaulande, et al. Human cytosolic asparaginyl-tRNA synthetase: cDNA sequence, functional expression in Escherichia coli and characterization as human autoantigen. Nucleic Acids Res. 1998 Jan 15;26(2):521-4. [Content Brief]

[4]. Andreea Manole, et al. De Novo and Bi-allelic Pathogenic Variants in NARS1 Cause Neurodevelopmental Delay Due to Toxic Gain-of-Function and Partial Loss-of-Function Effects. Am J Hum Genet. 2020 Aug 6;107(2):311-324. [Content Brief]

[5]. O M Zack Howard, et al. Histidyl-tRNA synthetase and asparaginyl-tRNA synthetase, autoantigens in myositis, activate chemokine receptors on T lymphocytes and immature dendritic cells. J Exp Med. 2002 Sep 16;196(6):781-91. [Content Brief]

生物医学辞典

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