1.   In addition the diversity of cell surface Markers provides a means of privacy and defense.

2.   In contrast to the surface of a synthetic polymer, however, the epithelial cell surface is highly complex and organised.

3.   The generally rather low concentrations of material measured in our extracts are consistent with material passing direct to the cell surface without residence in storage granules.

4.   The specificity of the antibodies was further confirmed by immunoprecipitation of integrin chains from cell lysates after l-lactoperoxidase cell surface labelling with the indicated antibodies.

5.   This also implies that the Eb message or protein is the limiting factor in the expression of the E beta heterodimer on the cell surface of these mice.

6.   In previous work, using Ea transgenic mice or recombinant mice strains, the presence of AbetaE mixed isotype molecules at the cell surface was shown.

7.   As a pioneer in glycobiology, the study of carbohydrate-containing molecules, he identified a whole family of core proteins with sugars attached to the cell surfaces.

8.   Distinguishing them from other cells required finding markers on their cell surface for which an immune-based tag could be developed.

9.   Five groups simultaneously discovered last spring that HIV uses a protein on the cell surface to slip into cells.

10.   Gallo said recent research indicates that the chemokines prevent HIV from entering immune cells by interfering with a receptor on the cell surface.