enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Lipid bilayer - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer

    Integral membrane proteins function when incorporated into a lipid bilayer, and they are held tightly to the lipid bilayer with the help of an annular lipid shell. Because bilayers define the boundaries of the cell and its compartments, these membrane proteins are involved in many intra- and inter-cellular signaling processes.

  3. Membrane models - Wikipedia

    en.wikipedia.org/wiki/Membrane_models

    Building on the fluid mosaic model, a framework called the proteolipid code was proposed in order to explain membrane organization. [8] The proteolipid code relies on the concept of a zone, which is a functional region of membrane that is assembled and stabilized with both protein and lipid dependency.

  4. Model lipid bilayer - Wikipedia

    en.wikipedia.org/wiki/Model_lipid_bilayer

    A model lipid bilayer is any bilayer assembled in vitro, as opposed to the bilayer of natural cell membranes or covering various sub-cellular structures like the nucleus. They are used to study the fundamental properties of biological membranes in a simplified and well-controlled environment, and increasingly in bottom-up synthetic biology for ...

  5. Fluid mosaic model - Wikipedia

    en.wikipedia.org/wiki/Fluid_mosaic_model

    Fluid mosaic model of a cell membrane. The fluid mosaic model explains various characteristics regarding the structure of functional cell membranes.According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.

  6. Membrane lipid - Wikipedia

    en.wikipedia.org/wiki/Membrane_lipid

    Membrane lipids are a group of compounds (structurally similar to fats and oils) which form the lipid bilayer of the cell membrane. The three major classes of membrane lipids are phospholipids, glycolipids, and cholesterol. Lipids are amphiphilic: they have one end that is soluble in water ('polar') and an ending that is soluble in fat ...

  7. Liquid ordered phase - Wikipedia

    en.wikipedia.org/wiki/Liquid_ordered_phase

    Regarding biological membranes, the liquid ordered phase is a liquid crystalline phase of a lipid bilayer, and is of significant biological importance. It occurs in many lipid mixtures combining cholesterol with a phospholipid and/or sphingolipids e.g. sphingomyelin. This phase has been related to lipid rafts that may exist in plasma membranes.

  8. Lipid bilayer mechanics - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer_mechanics

    Schematic showing two possible conformations of the lipids at the edge of a pore. In the top image the lipids have not rearranged, so the pore wall is hydrophobic. In the bottom image some of the lipid heads have bent over, so the pore wall is hydrophilic. Edge energy is the energy per unit length of a free edge contacting water.

  9. Lipid bilayer characterization - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer_characterization

    Natural lipids do not fluoresce, so it is always necessary to include a dye molecule in order to study lipid bilayers with fluorescence microscopy. To some extent, the addition of the dye molecule always changes the system, and in some cases it can be difficult to say whether the observed effect is due to the lipids, the dye or, most commonly ...