The MCE apparatus is a unique instrument that
provides a means of determining the charge, electrophoretic mobility
and diffusion coefficient of macromolecules under a variety of
conditions. The charge of a molecule is a fundamental property that is
inextricably linked to its structure, solubility and interactions. MCE
is a primary method for measuring this charge directly and routinely,
without comparison to standards. Experiments under both steady state
electrophoresis and mobility electrophoresis can be performed.
Presentation
(pdf): The importance of accurately measuring protein valence.
Applications:
Quality control and analysis.
Cataloging and characterization of charge on macromolecules.
Determining the size, shape and hydration of macromolecules.
Academic and industrial uses: 1) Detecting isozyme variants; 2)
Measuring effects of different buffer conditions on ion binding; 3)
Investigating charge variations of DNA; 4) Study of drug-DNA and
protein-protein interactions.
Sample Preparation:
For information specific to your application, contact:
Susan Chase, Supervisor, CAMIS Laboratory Technical Services
E-mail: sfchase@cisunix.unh.edu
Tel: (603) 862-1639
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Key features of the MCE:
Small sample sizes (2-100 μg).
Does not require a standard.
Buffer can be changed without disrupting the sample.
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