| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
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| IEF | International Eye Foundation; isoelectric focusing |
| IEI | isoelectric interval |
| IEP | immunoelectrophoresis; individualized education program; isoelectric point |
| IP | icterus praecox; imaging plate; immune precipitate; immunoblastic plasma; immunoperoxidase technique... |
| CIEF | Capillary isoelectric focusing |
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| IF | Isoelectric focusing |
| PAGIEF | Polyacrylamide gel isoelectric focusing |
| I.E.P. | isoelectric point |
| I.P. | isoelectric point |
| isoelectric | Of equal electrical potential. Compare: isoelectric point. Synonym: isopotential. Isoelectric focusing, electrophoresis of small molecules or macromolecules in a pH gradient. (05 Mar 2000) |
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| isoelectric focusing | <technique> Electrophoresis in a stabilised 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 is produced by electrophoresis of amphiphiles, heterogenous molecules giving a continuum of isoelectric points. Resolution is determined by the number of amphiphile species and the evenness of distribution of their isoelectric points. (18 Nov 1997) |
| isoelectric line | The baseline of the electrocardiogram. (05 Mar 2000) |
| isoelectric period | The period occurring in the electrocardiogram between the end of the S wave and the beginning of the T wave during which electrical forces are acting in directions such as to neutralise each other so that there is no difference in potential under the two electrodes. (05 Mar 2000) |
| isoelectric point | <biochemistry> The pH at which a protein carries no net charge. Below the isoelectric point proteins carry a net positive charge, above it a net negative charge. Due to a preponderance of weakly acid residues in almost all proteins, they are nearly all negatively charged at neutral pH. The isoelectric point is of significance in protein purification because it is the pH at which solubility is often minimal and at which mobility in an electrofocusing system is zero (and therefore the point at which the protein will accumulate). (18 Nov 1997) |
| isoelectric zone | The range of H-ion concentration (pH) over which isoelectric precipitation occurs. (05 Mar 2000) |
Synonyms : Focusing, Isoelectric
Synonyms : Isoelectric Points, Point, Isoelectric, Points, Isoelectric
| isoelectric focusing |
Isoelectric focusing is a method of separating proteins based on their relative content of acidic and basic residues. This content is represented by a value known as an isoelectric point, or pI. Proteins are introduced into a gel (composed of polyacrylamide, starch, agarose, etc.) which has an established pH gradient or is capable of establishing such a gradient after applying an electrical current. ...
Ãâó: en.wikipedia.org/wiki/Isoelectric_focusing
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| isoelectric point |
The isoelectric point (or pI) of a protein is the pH at which the protein has an equal number of positive and negative charges.
Ãâó: www.nature.com/nrmicro/journal/v2/n6/glossary/nrmi...
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| isoelectric point |
pH at which an amphoteric molecule has a net charge equal to zero
Ãâó: www.inproteomics.com/nwgloshi.html
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| isoelectric |
showing no variation in electric potential.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| isoelectric f. |
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 (or focus) at which the pH is equal to its isoelectric point. Called also electrofocusing.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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