This entry represents a domain that can be found at the C terminus f fungal proteins such as meiotic expression up-regulated protein 26 from Schizosaccharomyces pombe [1], Ecm8 from Saccharomyces cerevisiae and Rua1 from Ustilago maydis. Rua1 is a transcription factor and part of the gene cluster that mediates the biosynthesis of the glycolipid biosurfactant ustilagic acid (UA) [2,3].

1: Comprehensive isolation of meiosis-specific genes identifies novel proteins and unusual non-coding transcripts in Schizosaccharomyces pombe. Watanabe T, Miyashita K, Saito TT, Yoneki T, Kakihara Y, Nabeshima K, Kishi YA, Shimoda C, Nojima H; Nucleic Acids Res. 2001;29:2327-2337. PMID:11376151

2: A biosynthetic gene cluster for a secreted cellobiose lipid with antifungal activity from Ustilago maydis. Teichmann B, Linne U, Hewald S, Marahiel MA, Bolker M; Mol Microbiol. 2007;66:525-533. PMID:17850255

3: Activation of the ustilagic acid biosynthesis gene cluster in Ustilago maydis by the C2H2 zinc finger transcription factor Rua1. Teichmann B, Liu L, Schink KO, Bolker M; Appl Environ Microbiol. 2010;76:2633-2640. PMID:20173069