| Type: | Family | Name: | Bystin |
| Description: | Trophinin and tastin form a cell adhesion molecule complex that potentially mediates an initial attachment of the blastocyst to uterine epithelial cells at the time of implantation. Trophinin and tastinbind to an intermediary cytoplasmic protein called bystin. Bystin may be involved in implantation and trophoblast invasion because bystin is found with trophinin and tastin in the cells at human implantation sites and also in the intermediate trophoblasts atinvasion front in the placenta from early pregnancy []. This family also includes theSaccharomyces cerevisiaeprotein ENP1. ENP1 is an essential protein in S. cerevisiae and is localised in the nucleus[]. It is thought that ENP1 plays a direct role in the early steps of rRNA processingas enp1 defective S. cerevisiae cannot synthesise 20S pre-rRNA and hence 18S rRNA, which leads to reduced formation of 40S ribosomal subunits[]. | Short Name: | Bystin |
