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Topic: Gel electrophoresis

Related Topics

Electrophoresis

Agarose gel electrophoresis

DNA electrophoresis

Protein electrophoresis

Serum protein electrophoresis

Polymerase chain reaction

Western blot

Molecular biology

Capillary electrophoresis

Electrofocusing

Sodium dodecyl sulfate

Gel permeation chromatography

DNA testing

DNA replication

DNA

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	Gel electrophoresis, high speed gel 6 minutes
		Gel electrophoresis is a daily operation in many labs.
		Gel electrophoresis is a technique used to separate molecules based on their size and charge, according to the following equation where v = the rate (velocity) of migration, E is the strength of the electrical field, z is the charge on the molecule and f is the frictional force on the molecule
		In zonal gel electrophoresis, cations in solution migrate toward either the cathode of gel electrophoresis (negatively charged) whereas anions migrate toward the anode of gel electrophoresis (positively charged) when an electrical field is applied.
	www.6mgel.com /gel_electrophoresis.htm (958 words)

	Syngene, Proteomics - 2d gel analysis software, 2d imaging, 2d gel generation, gel image capture, Sypro Ruby imaging, ...
		Syngene has a range of products for 2D protein gel generation, image capture and analysis.
		Impressive 2D gel analysis software for the analysis of post-electrophoretically stained gels and for multiplexed gels
		Advanced 2D imaging workstations for capturing all visible and fluorescent 2D gels
	www.2dymension.com (95 words)

	Gel Electrophoresis of DNA (Site not responding. Last check: 2007-10-12)
		Electrophoresis is a technique used in the laboratory that results in the separation of charged molecules.
		You may be wondering what exactly a gel is, and what it has to do with agarose.
		You have now digested a piece of DNA with Restriction Enzymes, separated the digested fragments by Agarose Gel Electrophoresis on a gel you poured, and analyzed and documented your results.
	www.life.uiuc.edu /molbio/geldigest/electro.html (390 words)

	Reference.com/Encyclopedia/Gel electrophoresis
		In most cases the gel is a crosslinked polymer whose composition and porosity is chosen based on the weight and composition of the target of the analysis.
		Gel electrophoresis is used in forensics, molecular biology, genetics, microbiology and biochemistry.
		Gel electrophoresis of large DNA or RNA is usually done by agarose gel electrophoresis.
	www.reference.com /browse/wiki/Gel_electrophoresis (1052 words)

	Gel electrophoresis
		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 electrophoresis is usually performed for analytical purposes, but may be used as a preparative technique to partially purify molecules prior to use of other methods such as mass spectrometry, PCR, cloning, DNA sequencing, or immuno-blotting for further characterization.
		Gel electrophoresis of proteins is usually done in an SDS polyacrylamide gel (SDS-PAGE), by native gel electrophoresis, or by 2-D electrophoresis.
	www.ibpassociation.org /encyclopedia/Chemistry/Gel_electrophoresis.php (787 words)

	Gel Electrophoresis K-12 Experiments for Lesson Plans & Science Fair Projects
		Gel Electrophoresis of DNA - University of Illinois
		In most cases the gel is a crosslinked polymer whose composition and porosity is chosen based on the weight and composition of the target of the analysis.
		Gel electrophoresis of proteins is usually done in an SDS polyacrylamide gel (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis), by native gel electrophoresis, or by 2-D electrophoresis.
	www.juliantrubin.com /encyclopedia/biochemistry/gelelectrophoresis.html (892 words)

	Gel Electrophoresis
		The definition of Gel Electrophoresis is electrophoresis performed in silica gel, a porous inert medium.
		Electrophoresis is a process in which colloidal particles or macromolecules (nucleic acids or proteins) with a net electric charge migrate in a solution under the influence of an electric current (also known as cataphoresis or kataphoresis).
		When proteins or DNA are mixed together with a buffer solution and applied to a gel, the electrical current from one electrode rebuffs the molecules while the other electrode simultaneously attracts the molecules.
	www.iscid.org /encyclopedia/Gel_Electrophoresis (245 words)

	Gel electrophoresis
		Although the gels had the same thickness, results also indicate that the "special" NuSieve agarose is more transparent than the regular agarose.
		Agarose gels can be run at various voltages, depending on the separation desired and the available time.
		Whereas non-denaturing PAA gels work very well for non-polymorphic loci, unusual bands appear when microsatellites are separated on this type of gels.
	info.med.yale.edu /genetics/ward/tavi/p15.html (1013 words)

	Agarose Gel Electrophoresis of DNA
		To pour a gel, agarose powder is mixed with electrophoresis buffer to the desired concentration, then heated in a microwave oven until completely melted.
		It is often incorporated into the gel so that staining occurs during electrophoresis, but the gel can also be stained after electrophoresis by soaking in a dilute solution of ethidium bromide.
		Isolation of DNA from Agarose and Polyacrilamide Gels
	arbl.cvmbs.colostate.edu /hbooks/genetics/biotech/gels/agardna.html (1131 words)

	genome.gov \| Gel Electrophoresis
		Gels containing DNA fragments are typically stained with a DNA sensitive dye such as ethidium bromide or bromophenol blue.
		Gels can be made ahead of time and stored under damp towels in a sealed container at 4-C. Weigh out 1.2 grams agarose (for a 0.8% gel).
		While the gel is still liquid, use a pipet tip to move large bubbles or solid debris to the sides or end of the tray.
	www.genome.gov /11511439 (1992 words)

	Agarose gel electrophoresis (Site not responding. Last check: 2007-10-12)
		Agarose gel electrophoresis (2) is employed to check the progression of a restriction enzyme digestion, to quickly determine the yield and purity of a DNA isolation or PCR reaction, and to size fractionate DNA molecules, which then could be eluted from the gel.
		Although 0.7% agarose gels typically are used, in cases where the accurate size fractionation of DNA molecules smaller than 1 kb is required, a 1, 1.5, or 2% agarose gel is prepared, depending on the expected size(s) of the fragment(s).
		Agarose gels are submerged in electrophoresis buffer in a horizontal electrophoresis apparatus.
	mycoplasmas.vm.iastate.edu /lab_site/methods/DNA/agarosegel2.html (497 words)

	Thermo Scientific - Proteomics - Gel Electrophoresis Introduction
		Gel electrophoresis is used extensively by biologists to separate and quantify biopolymers (e.g.
		Separation of ions by electrophoresis exploits the fact that the rate of motion of charged particles in any particular applied electric field is directly proportional to their charge and inversely proportional to their size and the viscosity of the medium.
		In gel electrophoresis the medium is typically polyacrylamide or agarose, a viscous media that is required to minimize diffusion of the constituent ions.
	www.thermo.com /com/cda/resources/resources_detail/1,,35,00.html (762 words)

	Gel electrophoresis Summary
		Gel electrophoresis is often followed by staining or blotting procedures used to identify the separated molecules.
		The parameters that determine the migration rate of these molecules through the meshwork are the strength of the electric field, the composition of the gel support or matrix, the composition of the liquid buffer solution the gel sits in, and the size, shape, charge, and chemical composition of the molecules being separated.
		Gel electrophoresis is used in molecular biology, genetics, microbiology and biochemistry:
	www.bookrags.com /Gel_electrophoresis (2611 words)

	Proteomics - Gel Electrophoresis of Proteins
		Gel electrophoresis is a technique in which charged molecules, such as protein or DNA, are separated according to physical properties as they are forced through a gel by an electrical current.
		Gels with a low percentage of acrylamide are typically used to resolve large proteins and high percentage gels are used to resolve small proteins.
		The resolving gel may consist of a constant acrylamide concentration or a gradient of acrylamide concentration (high percentage of acrylamide at the bottom of the gel and low percentage at the top).
	www.piercenet.com /Proteomics/browse.cfm?fldID=21518847-2D72-475F-A5B9-B236EC5B641E (1947 words)

	Biopharmaceutical chromatography & electrophoresis glossary
		Electrophoresis in which a second perpendicular electrophoretic transport is performed on the separate components resulting from the first electrophoresis.
		These nested fragments are separated by gel electrophoresis, in which the DNA pieces are added to a gelatinous solution, allowing the fragments to work their way down through the gel.
		Electrophoresis in which a pH gradient is established in a gel medium and proteins migrate until they reach the site (or focus) at which the pH is equal to their isoelectric point.
	www.genomicglossaries.com /content/chromatography_glossary.asp (2004 words)

	Agarose gel electrophoresis
		Gel electrophoresis is primarily used to separate proteins –; the chemicals that make up cell and organ structure, as well as carry out reactions like breaking down food and fighting off diseases – according to their size, electric charge, and other physical properties.
		The identification of proteins in a person’s blood, urine or CSF sample is particularly useful to those in the medical field, as the clinical data obtained from gel electrophoresis helps identify and diagnose disease and abnormalities.
		Gel electrophoresis can be performed primarily using one of two materials as the gel base, agarose or polyacrylamide.
	www.sebia-usa.com /siteMap/agarose-gel.html (281 words)

	MMIA
		Gel electrophoresis is a technique used to separate DNA fragments based on size, yielding a unique “fingerprint.” At this workstation you will learn these techniques and how they are applied.
		The gel is placed inside the electrophoresis chamber containing the buffer solution and DNA is then loaded into the wells.
		Gel electrophoresis is a technique used to separate DNA fragments based on size, yielding a unique “fingerprint.” Because the DNA is too large to fit through the pores of the agarose gel, the DNA must be digested, or cut into smaller fragments, using a restriction enzyme.
	www.iupui.edu /~wellsctr/MMIA/htm/gelelectro.htm (675 words)

	MMIA
		Gel electrophoresis is a technique used to separate DNA fragments based on size, yielding a unique “fingerprint.” At this workstation you will learn these techniques and how they are applied.
		The gel is placed inside the electrophoresis chamber containing the buffer solution and DNA is then loaded into the wells.
		Gel electrophoresis is a technique used to separate DNA fragments based on size, yielding a unique “fingerprint.” Because the DNA is too large to fit through the pores of the agarose gel, the DNA must be digested, or cut into smaller fragments, using a restriction enzyme.
	www.wellscenter.iupui.edu /MMIA/htm/gelelectro.htm (675 words)

	Protein Gel Electrophoresis Tips and Troubleshooting Guide
		The stacking gel length should be 1 cm from the well bottom to the top of the separating gel for proper stacking of the protein sample.
		When doing protein renaturation or sequencing applications, leave gel for at least 5 hours post-polymerization to allow the ammonium persulfate and the TEMED to react with the gel components which reduces their chance of reacting with the amino-terminal end of the peptide.
		The high electrical power used in gel electrophoresis is very dangerous as such one should never disconnect the electrodes before first turning off the power supply.
	members.tripod.com /~Aldrin/index-3.html (1881 words)

	Gel Electrophoresis
		The gel that is used for electrophoresis is a many-molecule sugar polymer that is cross-linked with itself to formulate something that resembles a spider web at the microscopic level, while it resembles Jell-O in an overall sense.
		After heating, the solution is poured into a gel casting apparatus to polymerize, or "gel." A casting apparatus consists of a tray to hold everything, a support tray, and a comb.
		Because the gel is susceptible to breakage when handled, the support tray must be lifted out of the tray by pushing up from the hold in the tray.
	www.louisville.edu /~jdgamb01/CapstoneGelE.html (816 words)

	Electrophoresis acivity
		Gel electrophoresis is used to analyze DNA or proteins.
		Next, current is applied to the gel, and the electrically charged constituents of the sample migrate through the gel towards the edge away from the wells.
		In the version of the electrophoresis activity shown here, the goal is to determine which of the proteins (hemoglobin, actin, and myosin) are present in liver and muscle tissue samples.
	www.msu.edu /~russellr/portfolio/electrophoresis/electrophoresis.html (401 words)

	Parasitology: 2D electrophoresis for proteomics tutorial
		2D gel electrophoresis is generally used as a component of proteomics and is the step used for the isolation of proteins for further characterisation by mass spectroscopy (see our on-line tutorial on protein identification).
		Protein carbamylation results in bands of spots across the gel caused by charge change to a particular protein, these are termed carbamylation trains and result from the modification of the peptide amino terminus or the side chains of lysine or arginine by isocyanic acid.
		We run 1mm thick gels and have no problems, the 0.5mm thick ones might prove difficult, not only for getting the strips in between the plates, but also the mechanical integrity of the gel might not be strong enough.
	www.aber.ac.uk /parasitology/Proteome/Tut_2D.html (6174 words)

	Gel Electrophoresis
		These fragments can be separated in a gel on the bases on their electric charge and size.
		The negatively charged DNA fragments are repelled by the negative electrode and attracted to the positive electrode.
		The samples are run at the same time, in the same gel.
	www.tvdsb.on.ca /westmin/science/sbioac/genetics/Electro.htm (117 words)

	Agarose gel electrophoresis
		An electric current is used to move the DNA molecules across an agarose gel, which is a polysaccharide matrix that functions as a sort of sieve to help "catch" the molecules as they are transported by the electric current.
		In addition to its usefulness in research techniques, agarose gel electrophoresis is a common forensic technique and is used in DNA fingerprinting.
		Unknown DNA samples are typically run on the same gel with a "ladder." A ladder is a sample of DNA where the sizes of the bands are known.
	lifesciences.asu.edu /resources/mamajis/agarose/agarose.html (461 words)

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