isoelectric focusing


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Related to isoelectric focusing: isoelectric point

focusing

 [fo´kus-ing]
the act of converging at a point.
isoelectric focusing electrophoresis in which the protein mixture is subjected to an electric field in a gel medium in which a pH gradient has been established; each protein then migrates until it reaches the site at which the pH is equal to its isoelectric point.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

i·so·e·lec·tric fo·cus·ing

electrophoresis of small molecules or macromolecules in a pH gradient.
Farlex Partner Medical Dictionary © Farlex 2012

isoelectric focusing

the separation of molecules by differences in their charge, each molecule migrating to the point in a PH gradient where it has no net charge.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
Ehrhardt, "Improved staining of proteins in polyacrylamide gels including isoelectric focusing gels with clear background at nanogram sensitivity using Coomassie Brilliant Blue G-250 and R-250," Electrophoresis, vol.
Characterization of affinity-purified isoforms of Acinetobacter calcoaceticus Y1 glutathione transferases
The protein fractions showing considerable variations were subjected to isoelectric focusing. High molecular weight protein fraction of 270 kDa was resolved into two bands corresponding to isoelectric points 5.9 and 6.1(Fig.
ELECTROPHORESIS OF HUMAN SERUM PROTEINS FOLLOWING MYOCARDIAL INFARCTION
Isoelectric focusing of human hemoglobin: its application to screening, to the characterization of 70 variants, and to the study of modified fractions of normal hemoglobins.
Determinacion de la prevalencia de la hemoglobina S, C, D y G en recien nacidos de Buenaventura, Colombia
Protein mapping by combined isoelectric focusing and electrophoresis of mouse tissues.
Introduction to proteomics
We fractionated cells by preparative isoelectric focusing in a pH gradient of 3-10 and bioassayed the resultant fractions in test diets to determine their effects on egg produc tion.
Improved fecundity in the predator Orius insidiosus (Hemiptera: Anthocoridae) with a partially purified nutritional factor from an insect cell line
The new system, which fully automates all processes from isoelectric focusing to polyacrylamide gel electrophoresis to detection, can perform two-dimensional electrophoresis of proteins in about one hour.
National Institute of Advanced Industrial Science and Technology (AIST), Others Co-develop High-speed Fully Automated 2-D Electrophoresis System for Protein Analysis
This protein was found to be present in numerous cell cultures so I purified to homogeneity by preparative isoelectric focusing and SDS polyacrylamide gel electrophoresis this protein from human embryonic kidney cells (i.e., HEK293).
Comparison of the levels of the spicing factor PSF in individuals with dystonia
Isoelectric focusing was performed in vertical slab gels.
Biochemical differences between trail mucus and adhesive mucus from marsh periwinkle snails
The technique gives simultaneous focusing and separation of differently charged analytes in a manner analogous to isoelectric focusing of proteins, but is much simpler to implement than isoelectric focusing and has the additional advantage of working with any charged analyte, rather than just proteins.
Temperature gradient focusing in microfluidic channels. (General Developments)
Isoelectric focusing (IEF) in agarose gels revealed species-specific protein profiles in the ten control species.
Biochemical identification of shark fins and fillets from the coastal fisheries in New Zealand
High resolution of peroxidase-indoleacetic acid oxidase isoenzymes from horseradish by isoelectric focusing. Plant Physiology 60:787-93.
Accumulation of a Basic Peroxidase Isoenzyme in Leaves of Arabidopsis thaliana Following Inoculation with Pseudomonas syringae pv. syringae or Wounding

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