Aminoacyl-tRNA Synthetase Cofactor, p43, is a Novel Cytokine and an Immune Modulator: Implications for Autoimmune Diseases and Bacterial Infections

  • Kim, Sung-Hoon (Center for ARS Network, College of Pharmacy, Seoul National University)
  • Published : 2003.04.01

Abstract

p43 is a protein with complex biological activities. It is first found as a protein associated with macromolecular tRNA synthetase complex. Within this complex, p43 specifically interacts with arginyl-tRNA synthetase to help the substrate tRNA binding to the enzyme. It is also necessary for the cellular stability of arginyl-tRNA synthetase and the molecular association of a few complex-forming tRNA synthetases. (omitted)

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