Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g39740	Uridylates small RNAs to trigger their degradation.	Uridylation of miRNAs by hen1 suppressor1 in Arabidopsis.; 2012; DOI: 10.1016/j.cub.2012.02.052; PMID: 22464191; https://pubmed.ncbi.nlm.nih.gov/22464191/ | The Arabidopsis nucleotidyl transferase HESO1 uridylates unmethylated small RNAs to trigger their degradation.; 2012; DOI: 10.1016/j.cub.2012.02.051; PMID: 22464194; https://pubmed.ncbi.nlm.nih.gov/22464194/ | Methylation protects microRNAs from an AGO1-associated activity that uridylates 5' RNA fragments generated by AGO1 cleavage.; 2014; DOI: 10.1073/pnas.1405083111; PMID: 24733911; https://pubmed.ncbi.nlm.nih.gov/24733911/ | Synergistic and independent actions of multiple terminal nucleotidyl transferases in the 3' tailing of small RNAs in Arabidopsis.; 2015; DOI: 10.1371/journal.pgen.1005091; PMID: 25928341; https://pubmed.ncbi.nlm.nih.gov/25928341/ | Distinct and cooperative activities of HESO1 and URT1 nucleotidyl transferases in microRNA turnover in Arabidopsis.; 2015; DOI: 10.1371/journal.pgen.1005119; PMID: 25928405; https://pubmed.ncbi.nlm.nih.gov/25928405/