Gel electrophoresis apparatus - An agarose gel is placed in this buffer-filled box and electrical current is applied via the power supply to the rear. The negative terminal is at the far end (black wire), so DNA migrates toward the camera.
Gel
jelly like material formed by the coagulation of a colloidal liquid. Many gels have a fibrous matrix and fluid filled interstices: gels are viscoelastic rather than simply viscous and can resist some mechanical stress without deformation.
Gel electrophoresis is a group of techniques used by scientists to separate molecules based on physical characteristics such as size, shape, or isoelectric point.
Gel shift assay
Also called band shift or electrophoretic mobility shift is a method for detecting DNA-binding proteins.
Gel Blotting
Gel blotting is a technique for visualizing a particular subset of macromolecules — proteins, or fragments of DNA or RNA — initially present in a complex mixture. The steps: ...
Upon electrical stimulation, smaller fragments of a molecule will move faster through the gel than larger fragments. The process is typically done to separate DNA fragments after the DNA has been cut with restriction enzymes.
Gel electrophoresis
The process of separating charged species by subjecting them to a voltage gradient. A gel (made of agarose or polyacrylamide) provides mechanical support and prevents mixing of the molecules being separated.
gel electrophoresis
(jell eh-lek-troh-for-ee-sis)
The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring their rate of movement through an electrical field in a gel.
gene ...
Gel: A dense net work of fine particles dispersed with water (Jell-O is a gel). Used to separate different-sized strands of DNA.
Gene: The fundamental unit of heredity.
gel stage - phenological descriptor for seed developmental stage between liquid endosperm and dough ...
Gel electrophoresis See: electrophoresis
Gene The fundamental physical and functional unit of heredity.
Gel-filtration chromatography A separation technique based on size differences. A sample is applied to a column consisting of porous beads.
Agarose gel electrophoresis. A matrix composed of a highly purified form of agar that is used to separate larger DNA and RNA molecules ranging 20,000 nucleotides. (See Electrophoresis.) ...
Gel electrophoresis
- Technique for separtaing nucleic acid molecules on the basis of their movement through a gel matrix under the influence of an electric field
Gene ...
gel That state of a colloidal system in which the solid particles form the continuous phase and the fluid medium the discontinuous phase.
Gel-filled silica capillaries used to separate fragments for DNA sequencing.
GEL SHIFT - A method by which the interaction of a nucleic acid (DNA or RNA) with a protein is detected.
Gel electrophoresis: A method to analyze the size of DNA (or RNA) fragments. In the presence of an electric field, larger fragments of DNA move through a gel slower than smaller ones.
2D Gel Electrophoresis to Identify Cellular Proteins
While computer-based methods are powerful, they can only predict the function of proteins for which some information is already available.
Agar gel immunodiffusion test (AGIDT)
A method of detecting antigen or antibody by the observation of specific insoluble antigen/antibody precipitation products after diffusion of reagents through an agar gel.
Thermal gel gradient electrophoresis (TGGE)
A method for separating DNA fragments according to their mobilities under increasingly heat-denaturing conditions. See also DGGE, SSCP and heteroduplex analysis.
Agarose gel electrophoresis
Following DNA digestion, the resulting DNA fragments are separated by size via electrophoresis in agarose gels. During electrophoresis, DNAs which are negatively charged migrate toward the positive electrode.
mesoglea A gel-like matrix that occurs between the outer and inner epithelial layers in cnidarians.
mesophyll Layer of leaf tissue between the epidermis layers; literally meaning "middle of the leaf". PICTURE ...
Pulsed field gel electrophoresis A technique of electrophoresis which is able to resolve very large DNA molecules by periodic alterations of the direction of the applied electric field.
cytoplasm - gel-like substance in which all cellular components outside the nucleus are immersed.
cytoskeleton - protein lattice structure which gives shape to our cells.
TGGE
See thermal gel gradient electrophoresis
Related Terms:
Thermal gel gradient electrophoresis (TGGE) ...
Southern BlotDNA blot taken from an electrophoresis gel. The original blot type named after its originator Ed Southern, ...
Denaturing gradient gel electrophoresis (DGGE)
Denaturing high-performance liquid chromatography (DHPLC)
dendrites
Denhardt's solution
denominator element
density
density-gradient centrifugation
dentate nucleus ...
So typically you would isolate a population of RNA from some cell sample or tissue sample, and then you would electrophoretically allow the RNA to migrate down a gel.
Both the variant AIMilano and normal AI are incorporated to the same extent in stable complexes isolated by gel filtration, showing similar dimensions and stoichiometries.
The current forces the molecules through pores in a thin layer of gel, a firm jelly-like substance. The gel can be made so that its pores are just the right dimensions for separating molecules within a specific range of sizes and shapes.
It is a gel-like matrix composed of water, enzymes, nutrients, wastes, and gases and contains cell structures such as ribosomes, a chromosome, and plasmids. The cell envelope encases the cytoplasm and all its components.
Autoradiography A technique that uses X-ray film to visualize radioactively labeled molecules or fragments of molecules; used in analyzing length and number of DNA fragments after they are separated by gel electrophoresis.
connective tissue Animal tissue composed of cells embedded in a matrix (gel, elastic fibers, liquid, or inorganic minerals).
the differential movement of molecules through a gel under the influence of an electric field
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
...
The DNA is digested using restriction enzymes and separated using gel electrophoresis as described above.
The fragments on the gelatin are transferred to a filter by blotting.
The PCR product is then digested with a restriction enzyme and the products separated on an agarose gel.
 See also: DNA, Electrophoresis, Sequence, Protein, Trans
|
