Tested for in situ hybridization.
| Accession no. | pB-880 | 
| Full name (Alm et al.) | - | 
| Categories | eukaryotes | 
| Specificity | nearly all Eukarya | 
| Taxonomy | Eukaryota; cellular organisms | 
| Sequence | 5'-GGC ACC AGA CTK GYC CTC-3' | 
| Length [nt] | 18 | 
| G+C content [%] | 61 | 
| Target rRNA | 18S | 
| Position | 503-520 | 
| Formamide | 20-50 | 
| Check specificity/coverage | SILVA TestProbe | 
| References | Extremely acidophilic protists from acid mine drainage host Rickettsiales-lineage endosymbionts that have intervening sequences in their 16S rRNA genes. Baker BJ, Hugenholtz P, Dawson SC, Banfield JF. Applied and environmental microbiology. 2003. Pubmed: 12957940 | 
| Remarks | To be used in concert with EUKb1193 and EUKb310 for broad specificity of eucaryal domain, named EUK-mix |