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Mutational studies were previously carried out at the omega site intact cells (Micanovic, R., L. Gerber, J. Berger, K. Kodukula, and S. Udenfriend. 1990. Proc. Natl. Acad. Sci. USA. 87:157-161;(More)
Many proteins are now known to be anchored to the plasma membrane by a phosphatidylinositol-glycan (PI-G) moiety that is attached to their COOH termini. Placental alkaline phosphatase (PLAP) has been(More)
Secreted proteins are processed from a nascent form that contains an NH2-terminal signal peptide. During processing, the latter is cleaved by a specific NH2-terminal signal peptidase. The nascent(More)
Nascent proteins destined to be processed to a glycosylphosphatidylinositol (GPI)-anchored membrane form contain NH2-terminal and COOH-terminal signal peptides. The first directs a nascent protein(More)
Nascent translation products of PI-G-anchored membrane proteins contain both NH2- and COOH-terminal signal sequences of approximately 15-30 residues that are removed during processing. Removal of the(More)