In opposition to cortex thymic nurse cells, medullary thymic nurse cells contain semimature T lymphocytes within their caveoles, whose internal membrane surface expresses cytokeratin 5 (K5), and tissue-specific and tissue-restricted peptides.
Current evidence indicates that TLR9 is surface expressed on the membrane of immune effector cells, yet intracellular signaling may occur only after the TLR9 CpG sequence has been internalized.
Omp18 (HP1125), located on bacteria's outer membrane surfaces, is expressed by all known H. pylori strains and can react specifically with sera from all H. pylori-infected patients.
Furthermore, cell incubation with D609 induced a striking retardation in the reexpression of "new" HER2 molecules on the membrane surface, because newly expressed receptor molecules were still below detection level at 24 to 48 hours (panels m and n, green), suggesting a long-lasting block of receptor recruitment to the cell surface.
These biochemical data indicate that NPC1L1 exists as a predominantly cell surface membrane expressed protein, consistent with its proposed role as the putative intestinal sterol transporter.
The pattern of embryo spontaneous activity was different from the adult's; its characteristic was decided by receptors or channels expressed in membrane surface during embryonic period.
Interaction of the folic acid-conjugated GM with the folate receptors expressed on the membrane surface of the KB cells might have contributed to the improved internalization of GF into the cells, through receptor-mediated endocytosis [27].
Presepsin is a glycoprotein expressed on the membrane surface of monocytes and macrophages and serves as a receptor for lipopolysaccharides (LPSs) and LPS-binding proteins (LPBs).
Cluster of differentiation 14 (CD14) is a glycoprotein expressed on the membrane surface of monocytes and macrophages and serves as a receptor for lipopolysaccharides (LPSs) and LPS-binding proteins (LPBs).
Cluster of differentiation 14 (CD14) is a glycoprotein expressed on the membrane surface of monocytes and macrophages and serves as a receptor for complexes of lipopolysaccharides (LPSs) and LPS-binding proteins (LPBs).
