The mitotic apparatus-associated 51-kDa protein from sea urchin eggs is a GTP-binding protein and is immunologically related to yeast polypeptide elongation factor 1α. - Ohta, ,K.,.; Toriyama, ,M.,.; Miyazaki, ,M.,.; Murofushi, ,H.,.; Hosoda, ,S.,.; Endo, ,S.,.; and Sakai, ,H.. (J. Biol. Chem., 1990)