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The log of the molecular weights of proteins can be plotted against the relative mobility on SDS-PAGE. Using this plot, the r

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Answer #1

The relative mobility of a protein on SDS-PAGE is dependent on its size and molecular weight.

If molecular weight of a protein is very higher than the other proteins in the loaded wells, then it's relative mobility will be very lesser than the remaining proteins in the SDS PAGE.

From the given scatter plot, the circled protein's log value of its molecular weight is 4.7.

Then the molecular weight of circular protein is 50,118.8 daltons, because the log value of 50,118.8 is 4.7.

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