Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g54490	Possesses 5'->3' exoribonuclease activity.	AtXRN4 degrades mRNA in Arabidopsis and its substrates include selected miRNA targets.; 2004; DOI: 10.1016/j.molcel.2004.06.006; PMID: 15260969; https://pubmed.ncbi.nlm.nih.gov/15260969/ | A link between mRNA turnover and RNA interference in Arabidopsis.; 2004; DOI: 10.1126/science.1101092; PMID: 15528448; https://pubmed.ncbi.nlm.nih.gov/15528448/ | ETHYLENE-INSENSITIVE5 encodes a 5'-->3' exoribonuclease required for regulation of the EIN3-targeting F-box proteins EBF1/2.; 2006; DOI: 10.1073/pnas.0605528103; PMID: 16920797; https://pubmed.ncbi.nlm.nih.gov/16920797/ | The exoribonuclease XRN4 is a component of the ethylene response pathway in Arabidopsis.; 2006; DOI: 10.1105/tpc.106.046508; PMID: 17085683; https://pubmed.ncbi.nlm.nih.gov/17085683/
Arabidopsis	UniProt: Q9FQ02	Possesses 5'->3' exoribonuclease activity.	No verified direct reference in this release
Arabidopsis	At1g75660	Possesses 5'->3' exoribonuclease activity.	Arabidopsis FIERY1, XRN2, and XRN3 are endogenous RNA silencing suppressors.; 2007; DOI: 10.1105/tpc.107.055319; PMID: 17993620; https://pubmed.ncbi.nlm.nih.gov/17993620/ | Arabidopsis thaliana XRN2 is required for primary cleavage in the pre-ribosomal RNA.; 2010; DOI: 10.1093/nar/gkq172; PMID: 20338880; https://pubmed.ncbi.nlm.nih.gov/20338880/