Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g12780	Catalyzes the interconversion between UDP-glucose and UDP- galactose and the interconversion between UDP-arabinose and UDP-xylose.	Distinct properties of the five UDP-D-glucose/UDP-D-galactose 4-epimerase isoforms of Arabidopsis thaliana.; 2006; DOI: 10.1074/jbc.m512727200; PMID: 16644739; https://pubmed.ncbi.nlm.nih.gov/16644739/ | UDP-glucose 4-epimerase isoforms UGE2 and UGE4 cooperate in providing UDP-galactose for cell wall biosynthesis and growth of Arabidopsis thaliana.; 2007; DOI: 10.1105/tpc.106.049619; PMID: 17496119; https://pubmed.ncbi.nlm.nih.gov/17496119/ | Bifunctional cytosolic UDP-glucose 4-epimerases catalyse the interconversion between UDP-D-xylose and UDP-L-arabinose in plants.; 2009; DOI: 10.1042/bj20091025; PMID: 19754426; https://pubmed.ncbi.nlm.nih.gov/19754426/
Arabidopsis	At1g63180	Catalyzes the interconversion between UDP-glucose and UDP-galactose and the interconversion between UDP-arabinose and UDP-xylose.	Distinct properties of the five UDP-D-glucose/UDP-D-galactose 4-epimerase isoforms of Arabidopsis thaliana.; 2006; DOI: 10.1074/jbc.m512727200; PMID: 16644739; https://pubmed.ncbi.nlm.nih.gov/16644739/ | UDP-glucose 4-epimerase isoforms UGE2 and UGE4 cooperate in providing UDP-galactose for cell wall biosynthesis and growth of Arabidopsis thaliana.; 2007; DOI: 10.1105/tpc.106.049619; PMID: 17496119; https://pubmed.ncbi.nlm.nih.gov/17496119/ | Bifunctional cytosolic UDP-glucose 4-epimerases catalyse the interconversion between UDP-D-xylose and UDP-L-arabinose in plants.; 2009; DOI: 10.1042/bj20091025; PMID: 19754426; https://pubmed.ncbi.nlm.nih.gov/19754426/