Receptor cells and organs
The cells and organs that receive internal and external stimuli are called receptors. These receptors vary in complexity from single cells to complex organs.
Receptor may refer to:
In telecommunication, a receiver.
In physiology, a sensory receptor is any structure which, on receiving environmental stimuli, produces an informative nerve impulse.
Receptor (biochemistry)
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receptors, insulin
cell surface proteins that bind insulin and trigger intracellular changes which influence the behaviour of cells.
T-Cell Receptors for Antigen (TCRs)
alpha/beta (αβ) T cells
The antigen receptor on most T cells is made up of two transmembrane polypeptides designated alpha and beta (thus forming a heterodimer).
Receptors that have binding sites for the steroid androgen. Androgen receptors are altered in people with spinobulbar muscular atrophy (SBMA).
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The IP3 receptor/Ca2+ channel and its cellular function
Katsuhiko Mikoshiba1 ...
receptor potential
An initial response of a receptor cell to a stimulus, consisting of a change in voltage across the receptor membrane proportional to the stimulus strength.
receptor Protein on or protruding from the cell surface to which select chemicals can bind. The opiate receptor in brain cells allows both the natural chemical as well as foreign (opiate) chemicals to bind.
Receptor tyrosine kinases Transmembrane receptor proteins that, when bound to the appropriate signal molecules, display intracellular protein kinase activity, phosphorylating proteins at tyrosine residues.
Photoreceptor body part or sensory neurons which are sensitive to light
(photo = light) ...
T-Cell Receptors
Koop and Hood sequenced and analyzed nearly 100 kb of contiguous sequence from nonvariable regions of the TCRa complexes in the human and mouse genomes.
Receptors are proteins with specific binding sites for signaling molecules called ligands. Membrane soluble ligands include steroid hormones (estrogen) which bind to cytoplasmic receptors.
receptor-mediated endocytosis The type of endocytosis that involves a specific receptor on the plasma membrane that recognizes an extracellular molecule and binds with it.
Receptors enable cells to detect hormones and a variety of other chemicals in their environment. The binding of a molecule and a receptor initiates a chemical change within the cell.
Receptors are parts of the nervous system that sense changes in the internal or external environments.
receptor - protein that binds to specific extracellular signaling molecule (ligand) and initiates a response in the cell.
HIV Receptors
Still one: The two distinct co-receptors on the surface of T cells are CXCR4 and CCR5, both requiring CD4 for the entry of the HIV virus.
CRP
Catabolite receptor protein, also called CAP or catabolite activator protein. The interaction of CRP with cAMP modulates many aspects of catabolite repression in enteric bacteria.
A serum protein that stimulates cell division when it binds to its cell-surface receptor. Growth phase (curve). The characteristic periods in the growth of a bacterial culture, as indicated by the shape of a graph of viable cell number versus time.
On the far left of the figure, receptor mediated endocytosis, which is the most specifically-targeted form of the endocytic process, is presented.
If I've been at all clear, you'll see that once an animal has different photoreceptor classes the rest of the nervous system is already prepared to take advantage of them. An interesting case study in this regard is new world monkeys.
On the surface membrane of all living cells are complex protein structures called "receptors". A receptor is often compared to a lock into which a specific key or "ligand" will fit.
Apoptosis is often induced by activation of death receptors (DR) belonging to the tumor necrosis factor receptor (TNFR) family. Examples are Fas (CD95), TNFR-1 and TNFR-related apoptosis-mediated protein (TRAMP).
conservative or cut and paste: the transposable element is cut from the donor DNA and paste to the new location in the receptor DNA.
GRE: Glucocorticoid Response Element: A binding site in a promoter to which the activated glucocorticoid receptor can bind. The glucocorticoid receptor is essentially a transcription factor which is activated only in the presence of glucocorticoids.
The optic nerve is peculiar in that its fibers and ganglion cells are probably third in the series of neurons from the receptors to the brain.
Receptors within your nose detect and transmit smells to your brain, while your taste buds detect and transmit flavors to your brain. Much of what we think we are tasting is actually smell. Try an experiment.
part of the inner ear containing the receptors for body balance. The semi-circular canals lead to and from the utricle.
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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And in the process of expanding the HIV virus in these T cells, the T cells become dysfunctional as more and more and more pick up the virus through their receptors.
A term introduced by Stephenson (1956) to describe the way in which agonists vary in the response they produce even when they occupy the same number of receptors.
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Growth factor. A serum protein that stimulates cell division when it binds to its cell-surface receptor.
Proteins have many different functions: structure(collagen); movement (actin and myosin); catalysis (enzymes); transport (hemoglobin); regulation of cellular processes (insulin); and response to the stimuli (receptor proteins on surface of all ...
zona reaction - in mammals, modification of the zona pellucida that blocks polyspermy; enzymes released by cortical granules digest sperm receptor proteins ZP2 and ZP3 so that they can no longer bind sperm.
compound eye -- Found in many but not all arthropods, a compound eye is composed of a large number of small, closely packed simple eyes (ommatidia), each with its own lens and nerve receptors.
TRANSGENIC - An animal (usually a mouse) or plant into which a foreign gene has been introduced in the germ line. An example: transgenic mice expressing the human receptor for poliovirus are susceptible to human polioviruses.
Research program included projects on microbial molecular biology, molecular population genetics and brain receptor molecular biology.
 See also: Trans, Protein, Cell, Cells, Proteins
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