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pICalculax — Isoelectric point (pI) predictor for chemically modified peptides and proteins; SWISS-2DPAGE Archived 2016-12-10 at the Wayback Machine — a database of isoelectric points coming from two-dimensional polyacrylamide gel electrophoresis (~ 2,000 proteins) PIP-DB — a Protein Isoelectric Point database (~ 5,000 proteins)
Isoelectric focusing (IEF), also known as electrofocusing, is a technique for separating different molecules by differences in their isoelectric point (pI). [ 1 ] [ 2 ] It is a type of zone electrophoresis usually performed on proteins in a gel that takes advantage of the fact that overall charge on the molecule of interest is a function of the ...
Printing quality is highly influenced by the various treatments and methods used in creating paper and enhancing the paper surface. Consumers are most concerned with the paper-ink interactions which vary for certain types of paper due to different chemical properties of the surface. [8] Inkjet paper is the most commercially used type of paper.
Isoelectric may refer to: Isoelectric point, the pH at which a particular molecule carries no net electrical charge; Isoelectric focusing, a technique for separating different molecules by differences in their isoelectric point; Isoelectric line representing the absence of electrical activity on an electrocardiogram
The isoelectric point is the pH at which a compound - in this case a protein - has no net charge. A protein's isoelectric point or PI can be determined using the pKa of the side chains, if the amino (positive chain) is able to cancel out the carboxyl (negative) chain, the protein would be at its PI.
Most commonly found are calcium lactate crystals, especially on younger cheese, on the surface, and on cheddar. Depending on the cheese and its age, these crystals can consist of either or both enantiomers. [1] For grana padano, grainy amino acid crystals inside the cheese consisting mainly of tyrosine and of leucine and isoleucine have been ...
The pzc is the same as the isoelectric point (iep) if there is no adsorption of other ions than the potential determining H + /OH − at the surface [clarification needed]. [8] This is often the case for pure ("pristine surface") oxides in suspension in water. In the presence of specific adsorption, pzc and isoelectric point generally have ...
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