Glycoproteins
Glycoproteins have carbohydrate attached to them.
The attachment is a covalent linkage to: ...
Glycoproteins are proteins that contain oligosaccharide chains (glycans) covalently attached to their polypeptide. The carbohydrate is attached to the protein in a cotranslational or posttranslational modification.
glycoprotein -- a membrane-bound protein which has attached branching carbohydrates. These may function in cell-cell recognition, such as in human blood groups and immune system response, as well as in resisting compression of cells.
glycoproteins Polysaccharides formed of sugars linked to proteins. On the outer surface of a membrane, they act as receptors for molecular signals originating outside the cell. PICTURE ...
glycoprotein
[Gk. glykys, sweet + proteios, primary]
A protein with covalently attached carbohydrate.
Golgi apparatus ...
Glycoproteins Proteins that have a specific carbohydrate moiety attached.
Glycosaminoglycan A heteropolysaccharide made of repeating disaccharide units and containing the amino sugar glucosamine or galactosamine.
Glycoprotein
A protein with covalently linked sugar residues. The sugars may be bound to OH side chains of the polypeptide (O-linked) or to the amide nitrogen of asparagine side chains (N-linked) ...
glycoprotein - any protein with one or more covalently linked oligosaccharide chains. Included most secreted proteins and most proteins exposed on the outer surface of the plasma membrane.
glycoprotein A protein with attached sugars.
glycoside Physiologically active compound in plants that always contains a sugar group, although the active part of the molecule may differ.
GLYCOPROTEIN - A glycosylated protein.
GLYCOSYLATION - The covalent addition of sugar moities to N or O atoms present in the side chains of certain amino acids of certain proteins, ...
variable surface glycoprotein
(Science: protein) One of a battery of antigenicdeterminants expressed by a microorganism to elude immune detection.
A surface feature of a microorganism or macromolecule, such as a glycoprotein, that elicits an immune response. Antigenic switching.
(ii) Pseudoglycoprotein: some questions arise regarding the biologically active glycoproteins, e.g.: is a carbohydrate or peptide fragment responsible for the activity? We have proposed the approach that promotes to answer this and other questions.
as a boundary or border for the cytoplasm; c) regulates passage of material in and out of the cell; d) functions in the recognition of self
Which of these materials is not a major component of the plasma membrane? a) phospholipids; b) glycoproteins; ...
Marjorie Smith and I have developed procedures for the PCR amplification, cloning, and Baculovirus expression of human HLA glycoproteins.
These proteins, called glycoproteins, are important in many cell processes, including binding by receptors and eliciting an immune response. Glycoproteins are often specific cell markers.
Two different varieties of glycoprotein spike are embedded in the envelope. Approximately 80 percent of the spikes are hemagglutinin, a trimeric protein that functions in the attachment of the virus to a host cell.
These include the pregnancy-specific glycoprotein family (PSG), multiple zinc finger families (ZNF), olfactory receptors (OLFR) and cytochrome P-450s (CYP).
For example, carbohydrates are put on some of the proteins, and then afterwards these glycoproteins--meaning they have carbohydrate as well as protein on them, these glycoproteins move out of the Golgi to the rest of the cell.
The protein is then called a glycoprotein and the lipid is called a glycolipid. They are signals, sort of like "zip codes." They are recognition sites for molecules (hormones), foreign organisms (bacteria, viruses) and other cells.
For example, the glycoprotein hormone alpha subunit is produced only in certain cell types of the anterior pituitary and placenta, not in lungs or skin; thus expression of the glycoprotein hormone alpha-chain gene is said to be tissue-specific.
These glycolipids and glycoproteins often function as cell identification markers, allowing cells to identify other cells.
histocompatibility antigens - cell surface glycoproteins that differ from individual to individual; their recognition as foreign by a host organism is responsible for rejection of grafted foreign tissue.
Toothpick fragments represent carbohydrates, glycoproteins, and glycolipids.
The living ingredient of the cell is the cytoplasm.
prokaryotic cell, nucleoid, cell wall, plasma membrane, cytoplasmic membrane, ribosome, glycoprotein, flagella, pili
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interactions of the proteins do not have to rely only on the sidechains of amino acids themselves. By various posttranslational modifications other chains can be attached to the proteins, forming hydrophobic lipoproteins or hydrophilic glycoproteins.
The component of connective tissue surrounding cells and made up of the amorphous ground substance and fibrous proteins (mainly collagen fibres). The amorphous ground substance consists primarily of glycoproteins and proteoglycans.
 See also: Protein, Proteins, Cells, Cell, Trans
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