関連する実験動画

Updated: May 9, 2026

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
10:49

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy

Published on: March 5, 2017

コレステロールのヒドロキシル群の方向性は,その膜動態と細胞内輸送に影響する

Line Lauritsen, Amanda Therese Pauli, Miklas P W Larsen

    bioRxiv : the preprint server for biology
    |February 12, 2026
    PubMed
    まとめ

    コレステロール コレステロール

    さらに関連する動画

    Enrichment of Mammalian Tissues and Xenopus Oocytes with Cholesterol10:12

    Enrichment of Mammalian Tissues and Xenopus Oocytes with Cholesterol

    Published on: March 25, 2020

    Simple, Affordable, and Modular Patterning of Cells using DNA08:59

    Simple, Affordable, and Modular Patterning of Cells using DNA

    Published on: February 24, 2021

    関連する概念動画

    Membrane Fluidity01:23

    Membrane Fluidity

    Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
    Membrane Fluidity01:26

    Membrane Fluidity

    Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
    Mosaic nature of the membrane
    The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...
    Fluid Mosaic Model01:19

    Fluid Mosaic Model

    Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich with the analogy of...
    Asymmetric Lipid Bilayer01:35

    Asymmetric Lipid Bilayer

    Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
    What are Lipids?01:31

    What are Lipids?

    Lipids function as structural components of cellular membranes, in addition to acting as energy reservoirs and signaling molecules. They are thus crucial to all living organisms.  The three biologically important classes of lipids are triglycerides, phospholipids, and steroids.
    Non-Polar and Hydrophobic Characteristics of Lipids
    Lipids are a structurally and functionally diverse group of hydrocarbons—compounds consisting of carbon and hydrogen atoms. The carbon-carbon and carbon-hydrogen bonds...
    Cholesterol: Significance and Regulation01:29

    Cholesterol: Significance and Regulation

    Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
    Considering cholesterol and...