Transforming growth factor-alpha (TGFa), a member of the endothelial growth
factor (EGF) family of mitogens, was previously thought to exist solely in neoplastic
cells and the quickly dividing cells of a developing fetus. Since then, TGFa...
The prophage of bacteriophage P1 is a unit copy plasmid, stable in Escherichia coli during cell division due to its partition system. The active P1 partition system consists of two genes, parA and parB, and a cis-site, parS. ParS contains all of...
