isoelectric

isoelectric
Of equal electrical potential. Cf.:i. point. SYN: isopotential.
- i. focusing electrophoresis of small molecules or macromolecules in a pH gradient.

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iso·elec·tric .ī-sō-i-'lek-trik adj
1) having or representing the same or connecting points with the same electrical potential <an \isoelectric electroencephalogram> <\isoelectric maps of the body surface>
2) being the pH at which the electrolyte will not migrate in an electrical field <proteins migrating through a gel to a location with pH of their \isoelectric point>

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iso·elec·tric (i″so-e-lekґtrik) [iso- + electric] showing no variation in electric potential.

Medical dictionary. 2011.

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Look at other dictionaries:

  • isoelectric — ISOELÉCTRIC, Ă adj. v. izoelectric. Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • isoelectric — adjective Etymology: International Scientific Vocabulary Date: 1877 1. having or representing zero difference of electric potential 2. being the pH at which the electrolyte will not migrate in an electric field < the isoelectric point of a… …   New Collegiate Dictionary

  • Isoelectric focusing — (IEF), also known as electrofocusing, is a technique for separating different molecules by their electric charge differences. It is a type of zone electrophoresis, usually performed in a gel, that takes advantage of the fact that a molecule s… …   Wikipedia

  • isoelectric focusing — n an electrophoretic technique for separating proteins by causing them to migrate under the influence of an electric field through a medium (as a gel) having a pH gradient to locations with pH values corresponding to their isoelectric points * *… …   Medical dictionary

  • isoelectric focusing — isoelectric focusing. См. изоэлектрическое фокусирование. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • isoelectric point — isoelectric point. См. изоэлектрическая точка. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • isoelectric point — [ī΄sōē lek′trikpoint, ī΄səə lek′trik] n. the point, or pH value, at which a substance is neutral or has zero electric potential …   English World dictionary

  • Isoelectric point — The isoelectric point (pI) is the pH at which a particular molecule or surface carries no net electrical charge. Amphoteric molecules called zwitterions contain both positive and negative charges depending on the functional groups present in the… …   Wikipedia

  • isoelectric point — noun : the point or narrow range on a pH scale at which the concentration of anionic part of an ampholyte equals that of the cationic part : the pH at which the ampholyte will not migrate in an electrical field the isoelectric points of most… …   Useful english dictionary

  • isoelectric focusing — Electrophoresis in a stabilized pH gradient. High resolution method for separating molecules, especially proteins, that carry both positive and negative charges. Molecules migrate to the pH corresponding to their isoelectric point. The gradient… …   Dictionary of molecular biology

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