The GLEYA domain is related to lectin-like binding domains found in the S. cerevisiae Flo proteins and the C. glabrata Epa proteins [1]. It is a carbohydrate-binding domain that is found in fungal adhesins (also referred to as agglutinins or flocculins) [2]. Adhesins with a GLEYA domain possess a typical N-terminal signal peptide and a domain of conserved sequence repeats, but lack glycosylphosphatidylinositol (GPI) anchor attachment signals [3]. They contain a conserved motif G(M/L)(E/A/N/Q)YA, hence the name GLEYA. Based on sequence homology, it is suggested that the GLEYA domain would predominantly contain beta sheets [1]. The GLEYA domain is also found in S. pombe protein Swiss:Q92344, thought to be a kinetochore portein (Sim4 complex subunit), however no direct evidence for kinetochore association has been found [4]. Furthermore, a global protein localisation study in S. pombe identified it as a secreted protein localized to the Golgi complex [5].

1: Molecular phylogenetics of ascomycotal adhesins-A novel family of putative cell-surface adhesive proteins in fission yeasts. Linder T, Gustafsson CM; Fungal Genet Biol. 2007; [Epub ahead of print] PMID:17870620

2: Proteome of the nematode-trapping cells of the fungus Monacrosporium haptotylum. Andersson KM, Meerupati T, Levander F, Friman E, Ahren D, Tunlid A; Appl Environ Microbiol. 2013;79:4993-5004. PMID:23770896

3: A novel lily anther-specific gene encodes adhesin-like proteins associated with exine formation during anther development. Liu MC, Yang CS, Yeh FL, Wei CH, Jane WN, Chung MC, Wang CS; J Exp Bot. 2014;65:2023-2037. PMID:24591055

4: Molecular analysis of kinetochore architecture in fission yeast. Liu X, McLeod I, Anderson S, Yates JR 3rd, He X; EMBO J. 2005;24:2919-2930. PMID:16079914

5: Parallel profiling of fission yeast deletion mutants for proliferation and for lifespan during long-term quiescence. Sideri T, Rallis C, Bitton DA, Lages BM, Suo F, Rodriguez-Lopez M, Du LL, Bahler J; G3 (Bethesda). 2014;5:145-155. PMID:25452419