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What does OAP stand for?

OAP stands for of intramembrane particles

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Gap junctions appear as plaques of tightly packed intramembrane particles in freeze-fracture electron microscopy. For comparison, the intramembrane particles of the adjacent plasma membrane (labelled M in the picture) are less densly packed. Gap junctions are involved in cell-cell communication.
Gap junctions appear as plaques of tightly packed intramembrane particles in freeze-fracture electron microscopy. For comparison, the intramembrane particles of the adjacent plasma membrane (labelled M in the picture) are less densly packed. In thin sections gap junctions are seen as close apposition of the adjacent membranes with a 2 nm gap between them. Electron dense stains can permeate this type of junction, unlike tight junctions.
In non-growing systems such an insertion is temporary in that the inserted membrane is eventually removed. Turnover results indicate that the removed membrane is not destroyed but recycled within the cell and reused. In some systems exocytosis occurs over the entire plasmalemma, while in others it is restricted to discrete regions, characterized by peculiar morphology and composition. Thus the fusion of the two membranes is probably preceded by a recognition step. Structural specializations were detected in interacting granule and plasma membranes by freeze-fracture and surface labelling techniques: arrays of intramembrane particles.
F. , Rodriguez P. , Romero P. (2004). Differences in intramembrane particles distribution in young and old human erythrocytes. Cell Biol Int 28(6):423-31. 9) Cordero J. F. , Romero P. (2002).
The polyaspartic acid stabilized ACC is drawn into the membrane pores by capillary action, and the single-crystal nature of the nanowires is attributed to the limited contact of the intramembrane ACC particle with the bulk solution. The reaction environment then supports transformation to a single-crystal product.
Similarly, the drug has been shown to modulate T lymphocyte and natural killer cell cytotoxicity, T8 suppressor and T4 helper cell functions and also to increase the number of IgG and complement surface markers. Isoprinosine increases cytokine IL-1 production and enhances IL-2 production, upregulating the expression of the IL-2 receptor in vitro. It significantly increases endogenous IFN -γ secretion and decreases the IL-4 production in vivo. It has also been shown to potentiate neutrophil, monocyte and macrophage chemotaxis and phagocytosis. In vivo, inosine acedoben dimepranol enhances potentiation of depressed lymphocytic mRNA protein synthesis and translational ability while inhibiting viral RNA synthesis achieved by yet-to-be-clarified degrees of (1) incorporation of inosine-mediated orotic acid into polyribosomes; (2) inhibition of polyadenylic acid attachment to viral messenger RNA and (3) molecular reorganisation of lymphocyte intramembrane plasma particles.