Table 1 Summary of RNA and DNA viruses and ligand recognition by PRRs

From: Intracellular sensing of viral genomes and viral evasion

PRR

Agonist

Representative virus

RIG-I

5' ppp dsRNA

short dsRNA

5' ppp ssRNA

AU-rich 3' UTR

RNase L cleavage products

Circular viral RNA

pU/UC HCV genomic RNA

SeV, NDV, RSV, MV, VSV, IAV, EBOV, JEV, HCV, WNV, DENV, Rotavirus, Vaccinia virus, Adenovirus, Rift Valley fever virus, Lassa virus, Nipha virus, Rabies virus, Influenza B virus

MDA5

Long dsRNA

RNase L cleavage products

AU-rich motifs

ECMV, MV, WNV, SeV, DENV, MHV, HCV, PIV5, EV, Murine norovirus-1, Rabies virus, Saffold virus, Rotavirus, Adenoviruses, Theiler’s virus

LGP2

dsRNA

ECMV, VSV, HCV, Poliovirus

cGAS

RNA:DNA intermediate

dsDNA

ssDNA

Mitochondrial DNA

HSV-1, MHV68, Adenovirus

IFI16

dsDNA

ssDNA

HSV-1, HCMV, KSHV, EBV

AIM2

dsDNA

MCMV, Vaccina virus

  1. dsRNA double-stranded RNA, ssRNA single-stranded RNA, UTR untranslated region, dsDNA double-stranded DNA, ssDNA single-stranded DNA