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isoelectric |
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isoelectric /iso·elec·tric/ (i″so-e-lek´trik) showing no variation in electric potential. isoelectric [ī′sō·ilek′trik] Etymology: Gk, isos + electron, amber pertaining to the electric baseline of an electrocardiogram, which is the period between the end of the T wave and the beginning of the P wave. isoelectric showing no variation in electric potential. isoelectric focusing an electrophoretic method for separating proteins in gels which depends on the fact that the net charge on the protein varies with the pH of the surrounding medium. At the isoelectric point the protein has no net charge and will not therefore migrate further in an electric field. The polyacrylamide gel is cast in a narrow tube that provides a pH gradient from top to bottom. isoelectric period the moment in muscular contraction when no deflection of the galvanometer is produced. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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coli CO subjected to isoelectric focusing analysis showed 3 [beta]-lactamase activities with pI values of 5. The ST segment was measured at J plus 60 ms, with the PR interval used as the isoelectric reference point. Before the first-dimension isoelectric focusing (IEF), a 50-lag aliquot from each of the three labeling mixes (see above) was combined with rehydration buffer [containing 7 M urea, 4% (w/v) CHAPS, 1% (w/v) DTT, and 0. |
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