| Modification Notes |
Myosin XVIIIa, also designated MYO18A, MAJN, MYSPDZ, surfactant protein A receptor (SPR210) or TGF∫1-induced antiapoptotic factor 1, is a TGF∫1-induced antiapoptotic factor known to inhibit the cytotoxic effects of TNFå on mouse fibroblasts. Two isoforms of mouse Myosin XVIIIa, designated MysPDZ å and MysPDZ∫, have been identified. MysPDZå consists of a KE-rich region, an N-terminal PDZ domain, and a prevalent myosin homologous head region, neck (with one IQ motif) and coiled-coil tail. The MysPDZ∫ isoform lacks the KE-rich region and PDZ domain. MysPDZå is present in most tissues and is known to co-localize with the ER-Golgi complex and with membrane ruffles and filopodia. MysPDZ∫ is expressed specifically in hematopoietic tissues and cell lines and shows dispersed localization in the cytoplasm. |