EF1A interacting with nucleocapsid protein of transmissible gastroenteritis coronavirus and plays a role in virus replication

Vet Microbiol. 2014 Aug 27;172(3-4):443-8. doi: 10.1016/j.vetmic.2014.05.034. Epub 2014 Jun 9.


Transmissible gastroenteritis coronavirus (TGEV) is an enteropathogenic coronavirus that causes diarrhea in pigs, which is correlated with high morbidity and mortality in suckling piglets. Using the method of GST pull-down with the nucleocapsid (N), N protein was found to interact with swine testes (ST) cells elongation factor 1-alpha (EF1A), an essential component of the translational machinery with an important role in cells. In vitro and in virus-infected cells interaction was then confirmed by co-precipitation. Knockdown of EF1A impairs N protein proliferation and TGEV replication in host cell. It was demonstrated that EF1A plays a role in TGEV replication. The present study thus provides a protein-related information that should be useful for underlying mechanism of coronavirus replication.

Keywords: EF1A; Nucleocapsid; Transmissible gastroenteritis coronavirus.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cells, Cultured
  • Coronavirus / metabolism*
  • Gastroenteritis, Transmissible, of Swine / virology*
  • Gene Expression Regulation
  • Male
  • Nucleocapsid Proteins / metabolism*
  • Peptide Elongation Factor 1 / genetics
  • Peptide Elongation Factor 1 / metabolism*
  • Swine
  • Testis / cytology
  • Testis / metabolism
  • Transmissible gastroenteritis virus
  • Virus Replication / physiology*


  • Nucleocapsid Proteins
  • Peptide Elongation Factor 1