Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g32070	Protein acetyltransferase with dual specificity triggering both N-alpha-acetylation (NTA), with a preference for alanine, serine, threonine, methionine and to a lower extent valine as substrates (can also use glycine and leucine), and epsilon-lysine acetylation (KA) of several plastid proteins.	Cloning of Arabidopsis serotonin N-acetyltransferase and its role with caffeic acid O-methyltransferase in the biosynthesis of melatonin in vitro despite their different subcellular localizations.; 2014; DOI: 10.1111/jpi.12181; PMID: 25250906; https://pubmed.ncbi.nlm.nih.gov/25250906/ | Melatonin Improved Anthocyanin Accumulation by Regulating Gene Expressions and Resulted in High Reactive Oxygen Species Scavenging Capacity in Cabbage.; 2016; DOI: 10.3389/fpls.2016.00197; PMID: 27047496; https://pubmed.ncbi.nlm.nih.gov/27047496/ | Melatonin induction and its role in high light stress tolerance in Arabidopsis thaliana.; 2018; DOI: 10.1111/jpi.12504; PMID: 29770489; https://pubmed.ncbi.nlm.nih.gov/29770489/ | Chloroplast Acetyltransferase NSI Is Required for State Transitions in Arabidopsis thaliana.; 2018; DOI: 10.1105/tpc.18.00155; PMID: 29967049; https://pubmed.ncbi.nlm.nih.gov/29967049/ | Daily rhythms of phytomelatonin signaling modulate diurnal stomatal closure via regulating reactive oxygen species dynamics in Arabidopsis.; 2020; DOI: 10.1111/jpi.12640; PMID: 32064655; https://pubmed.ncbi.nlm.nih.gov/32064655/ | Melatonin Represses Oil and Anthocyanin Accumulation in Seeds.; 2020; DOI: 10.1104/pp.20.00117; PMID: 32354877; https://pubmed.ncbi.nlm.nih.gov/32354877/ | Melatonin Regulates Chloroplast Protein Quality Control via a Mitogen-Activated Protein Kinase Signaling Pathway.; 2021; DOI: 10.3390/antiox10040511; PMID: 33806011; https://pubmed.ncbi.nlm.nih.gov/33806011/ | Melatonin inhibits seed germination by crosstalk with abscisic acid, gibberellin, and auxin in Arabidopsis.; 2021; DOI: 10.1111/jpi.12736; PMID: 33811388; https://pubmed.ncbi.nlm.nih.gov/33811388/ | CAND2/PMTR1 Is Required for Melatonin-Conferred Osmotic Stress Tolerance in Arabidopsis.; 2021; DOI: 10.3390/ijms22084014; PMID: 33924609; https://pubmed.ncbi.nlm.nih.gov/33924609/ | Roles of Endogenous Melatonin in Resistance to  Botrytis cinerea  Infection in an  Arabidopsis  Model.; 2021; DOI: 10.3389/fpls.2021.683228; PMID: 34234798; https://pubmed.ncbi.nlm.nih.gov/34234798/ | H2S aids osmotic stress resistance by S-sulfhydration of melatonin production-related enzymes in Arabidopsis thaliana.; 2022; DOI: 10.1007/s00299-021-02813-2; PMID: 34812898; https://pubmed.ncbi.nlm.nih.gov/34812898/
Rice	UniProt: A2Y5T7	Catalyzes the N-acetylation of serotonin into N-acetylserotonin, the penultimate step in the synthesis of melatonin.	No verified direct reference in this release
Rice	Os05g0481000	Catalyzes the N-acetylation of serotonin into N- acetylserotonin, the penultimate step in the synthesis of melatonin.	Molecular cloning of rice serotonin N-acetyltransferase, the penultimate gene in plant melatonin biosynthesis.; 2013; DOI: 10.1111/jpi.12011; PMID: 22998587; https://pubmed.ncbi.nlm.nih.gov/22998587/ | Cellular localization and kinetics of the rice melatonin biosynthetic enzymes SNAT and ASMT.; 2014; DOI: 10.1111/jpi.12103; PMID: 24134674; https://pubmed.ncbi.nlm.nih.gov/24134674/ | Cloning and characterization of the serotonin N-acetyltransferase-2 gene (SNAT2) in rice (Oryza sativa).; 2016; DOI: 10.1111/jpi.12339; PMID: 27121038; https://pubmed.ncbi.nlm.nih.gov/27121038/ | Overexpression of rice serotonin N-acetyltransferase 1 in transgenic rice plants confers resistance to cadmium and senescence and increases grain yield.; 2017; DOI: 10.1111/jpi.12392; PMID: 28118490; https://pubmed.ncbi.nlm.nih.gov/28118490/