The isoelectric point, pI, of the protein horse liver alcohol dehydrogenase is 6.8 , while that of aldolase is 6.1 . What is the net charge of horse liver alcohol dehydrogenase at pH 5.1 ?| What is the net charge of aldolase at pH 6.7 ? The isoelectric point of serine is 5.68 ; valine , 5.96 . During paper electrophoresis at pH 7.3 , toward which electrode does serine migrate? During paper electrophoresis at pH 6.5 , toward which electrode does valine migrate?

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