Lipid

Lipid and Polysaccharide Antigens Lipid Antigens Lipid antigens are presented to T cells by cell-surface molecules designated CD1 ("cluster of differentiation" 1). Antigen-presenting cells express several different forms of CD1 at their surface.

lipid fats and similar fatlike chemical compounds, that are insoluble in water but soluble in certain organic compounds Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

Lipids play diverse and important roles in nutrition and health. Many lipids are absolutely essential for life.

lipid noun A fatty or waxy organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent (e.g water).

Search for lipid in these other databases too Definition of lipid : A small water-insoluble biomolecule generally containing fatty acids, sterols, or isoprenoid compounds.

The process whereby free radicals "steal" electrons from the lipids in our cell membranes, resulting in cell damage and increased production of free radicals. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Lipid bilayer (Redirected from Phospholipid bilayer) A DPPC bilayer simulation Color scheme: PO4 = green, N(CH3)3 = violet, water = blue, terminal CH3 = yellow, O = red, glycol C = brown, chain C = grey ...

lipid Definition of lipid Generic term for fatty acids and other fat-containing molecules; fat.

Inositol lipids and TRPC channel activation James W. Jr, Putney1 National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC 27709 U.S.A.

Lipids are compounds that are insoluble in water but soluble in nonpolar solvents. Some lipids function in long-term energy storage. One gram of fat stores more than twice as much energy as one gram of carbohydrate.

lipids One of the four classes of organic macromolecules. Lipids function in the long-term storage of biochemical energy, insulation, structure and control.

Lipid bilayers are not permeable to: ions such as K+, Na+, Ca2+ (called cations because when subjected to an electric field they migrate toward the cathode [the negatively-charged electrode]) ...

lipid (lih-pid) [Gk. lipos, fat] One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water. lipoprotein ...

lipids -- a class of biochemical compounds which includes fats, oils, and waxes. luciferase -- enzyme which activates luciferin to produce bioluminescence. luciferin -- compound whose activated form emits light.

lipid (Gr. lipos, fat) Any of a group of fats or fat-like compounds insoluble in water and soluble in fat solvents.

Lipids are the best energy storage molecules for their weight. The breakdown of fatty acids produces both energy and metabolic water, hence the camel stores lipids in his/her hump. Waxes contain fatty acids, also. Sterols are another kind of lipid.

lipid A fat, oil, or fatlike compound that usually has fatty acids in its molecular structure. An organic compound consisting mainly of carbon and hydrogen atoms linked by nonpolar covalent bonds.

The lipid binding properties of apolipoprotein (apo) AIMilano, a molecular variant of human apolipoprotein AI, characterized by the Arg173----Cys substitution, was investigated by the use of dimyristoylphosphatidylcholine liposomes.

glycolipid - membrane lipid molecule with a short carbohydrate chain attached to a hydrophobic tail. glycolysis - the degradation of carbohydrates in a sequence of enzymatically catalyzed steps.

Phospholipid. A class of lipid molecules in which a phos- phate group is linked to glycerol and two fatty acyl groups. A chief component of biological membranes. (See Inositol phospholipid.) ...

ionophore - lipid soluble substance that forms a channel or acts as a carrier in a lipid bilayer membrane to allow specific ions can move across the membrane. A23187 is an example of a calcium ionophore.

1950: The Role of Lipids and Lipoproteins in Atherosclerosis by J.W. Gofman, F. Lindgren, H. Elliot, H. W. Mantz, J. Hewitt, B. Strisower, and V. Herring, Science, (February 17th issue). Over 530 citations. (LBNL) ...

Inositol lipid. A membrane-anchored phospholipid that transduces hormonal signals by stimulating the release of any of several chemical messengers. (See Phospholipid.) Insertion mutations.

carotenoids Lipid-soluble photosynthetic pigments made up of isoprene units. cata- down catabolism The phase of intermediary metabolism concerned with the energy-yielding degradation of nutrient molecules.

Biochemical Society Symposia vol 75: Biochemical Society Annual Symposium - Structure and Function in Cell Adhesion Biochemical Society Symposia vol 74: The Cell Biology of Inositol Lipids and Phosphates Biochemical Society Symposia vol 73: ...

The neuron, like all cells, possesses a cell membrane that is mostly lipid. Ions like sodium and potassium cannot cross the lipid membrane on their own.

Lipid a group of hydrophobic molecules such as fats‚ oils‚ and waxes (lipo = fat)    Lithosphere the rocky layers that make up the Earth's crust (litho = stone; sphere = a ball)    Littoral Zone zone of emergent vegetation in a lake or ocean ...

- Large, complex molecules, such as proteins, nucleic acids, lipids and carbohydrates, that are produced only by living organisms. Biological molecules are often referred to as macromolecules or biopolymers. Bioprocessing ...

Liposome: Mocroscopic particle of lipid (fat or oil). Locus: In genetics the place on a chromosome which is occupied by a gene. Plural: loci. M ...

Allelopathy: The influence exerted by a living plant on other plants nearby or microorganisms through production of chemicals. These include 1) carbohydrates and lipids, 2) alkaloids, 3) other nitrogen-containing compounds, 4) flavonoid phenolics and ...

Proteins may be modified in a wide variety of ways, including phosphorylation (addition or a phosphate group), adenylation (addition of an adenine group), glycosylation (addition of a sugar group), acylation (addition of a lipid group), ...

A variant of magnetic resonance imaging that generates individual nuclear magnetic resonance spectra from a grid of subvolumes in an object. In addition to the more conventional water and lipid magnetic resonance images, ...

Anchor Sequence: A hydrophobic amino acid sequence which fixes a segment of a newly synthesized, translocating protein within the lipid bilayer membrane of the endoplasmic reticulum.

Plasma membrane - outer membrane of cells composed of proteins and a phospholipid bi-layer that controls cellular traffic ...

See also: Protein, Trans, Proteins, Cells, Cell