Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g60410	E3 SUMO protein ligase involved in regulation processes.	The Arabidopsis SUMO E3 ligase SIZ1 controls phosphate deficiency responses.; 2005; DOI: 10.1073/pnas.0500778102; PMID: 15894620; https://pubmed.ncbi.nlm.nih.gov/15894620/ | SIZ1 small ubiquitin-like modifier E3 ligase facilitates basal thermotolerance in Arabidopsis independent of salicylic acid.; 2006; DOI: 10.1104/pp.106.088831; PMID: 17041025; https://pubmed.ncbi.nlm.nih.gov/17041025/ | Salicylic acid-mediated innate immunity in Arabidopsis is regulated by SIZ1 SUMO E3 ligase.; 2007; DOI: 10.1111/j.1365-313x.2006.02947.x; PMID: 17163880; https://pubmed.ncbi.nlm.nih.gov/17163880/ | SIZ1-mediated sumoylation of ICE1 controls CBF3/DREB1A expression and freezing tolerance in Arabidopsis.; 2007; DOI: 10.1105/tpc.106.048397; PMID: 17416732; https://pubmed.ncbi.nlm.nih.gov/17416732/ | Genetic analysis of SUMOylation in Arabidopsis: conjugation of SUMO1 and SUMO2 to nuclear proteins is essential.; 2007; DOI: 10.1104/pp.107.102285; PMID: 17644626; https://pubmed.ncbi.nlm.nih.gov/17644626/ | The Arabidopsis E3 SUMO ligase SIZ1 regulates plant growth and drought responses.; 2007; DOI: 10.1105/tpc.106.049981; PMID: 17905899; https://pubmed.ncbi.nlm.nih.gov/17905899/ | The PHD domain of plant PIAS proteins mediates sumoylation of bromodomain GTE proteins.; 2008; DOI: 10.1074/jbc.m708176200; PMID: 18502747; https://pubmed.ncbi.nlm.nih.gov/18502747/ | Sumoylation of ABI5 by the Arabidopsis SUMO E3 ligase SIZ1 negatively regulates abscisic acid signaling.; 2009; DOI: 10.1073/pnas.0811088106; PMID: 19276109; https://pubmed.ncbi.nlm.nih.gov/19276109/ | SUMOylation represses SnRK1 signaling in Arabidopsis.; 2016; DOI: 10.1111/tpj.13096; PMID: 26662259; https://pubmed.ncbi.nlm.nih.gov/26662259/
Rice	Os03g0719100	Probable SUMO E3 ligase that may regulate Pi starvation responses.	No verified direct reference in this release
Rice	Os05g0125000	Probable SUMO E3 ligase that may regulate Pi starvation responses.	No verified direct reference in this release