 antigen.
Process that occurs during the morula stage of embryogenesis in which blastomeres increase their cell-cell contact area and develop gap junctions. In mice compaction occurs ...
Relatively small plant cell, with little or no vacuole, found adjacent to a phloem sieve tube and originating with the latter from a common mother cell. Thought to be involved ...
In the insect wing, for example, there are two compartments, anterior and posterior, each containing several clones, but clones do not cross the boundary. It seems from studies ...
(1) Bacterial cells with enhanced ability to take up exogenous DNA and thus to be transformed. Competence can arise naturally in some bacteria ( Pneumococcus, Bacillus and ...
Inhibitor that occupies the active site of an enzyme or the binding site of a receptor and prevents the normal substrate or ligand from binding. At sufficiently high ...
A heat-labile system of enzymes in plasma associated with response to injury. Activation of the complement cascade occurs through two convergent pathways. In the classical ...
Binding of complement as a result of its interaction with immune complexes (the classical pathway) or particular surfaces (alternative pathway).
complementary base pairs
The crucial property of DNA is that the two strands are complementary: Guanine and cytosine are complementary and pair up through their hydrogen bonds, as are adenine and ...
The ability of a mutant chromosome to restore normal function to a cell that has a mutation in the homologous chromosome when a hybrid or heterokaryon is formed - the ...
Nerve-terminal syntaxin-binding proteins.
See concanavalin A.
Con A receptors
A common misuse of the term receptor. Con A binds to the mannose residues of many different glycoproteins and glycolipids and the binding is therefore not to a specific site. ...
Non-haem iron-binding protein found in chicken plasma and egg white.
Class of small peptides (17-21 residues) from Conus spp. that inhibit NMDA class of glutamate receptors.
(= Con A)
A lectin isolated from the jack bean, Canavalia ensiformis.
Two or more identical linear molecular units covalently linked in tandem. Especially used of nucleic acid molecules and of units in artificial polymers.
Vacuole formed from the cis face of the Golgi apparatus by the fusion of smaller vacuoles. Within the condensing vacuole the contents are concentrated and may become ...
A mutation that is only expressed under certain environmental conditions, for example temperature-sensitive mutants.
Cell culture medium that has already been partially used by cells. Although depleted of some components, it is enriched with cell-derived material, probably including small ...
A cell culture in which all the cells are in contact and thus the entire surface of the culture vessel is covered. It is also often used with the implication that the cells ...
A system of (usually) epifluorescence light microscopy in which a fine laser beam of light is scanned over the object through the objective lens. The technique is particularly ...
Alteration in the shape -usually the tertiary structure of a protein - as a result of alteration in the environment (pH, temperature, ionic strength) or the binding of a ligand ...
Asexual spore of fungus, borne at the tip of a specialized hypha (conidiophore).
Union between two gametes or between two cells leading to the transfer of genetic material. In eukaryotes the classic examples are in Paramecium and Spirogyra. Conjugation ...
Uncontrolled secretion of aldosterone usually by an adrenal adenoma.
Cell surface protein (70 kD) from mouse fibrosarcoma cells that binds laminin and actin.
Rather general term for mesodermally derived tissue that may be more or less specialized. Cartilage and bone are specialized connective tissue, as is blood, but the term is ...
connective tissue diseases
A group of diseases including rheumatoid arthritis, systemic lupus erythematosus, rheumatic fever, scleroderma and others, that are sometimes referred to as rheumatic ...