Calculate the pi for the tripeptide e-r-h and draw its, Ask an Expert

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Calculate the pI for the tripeptide E-R-H and draw its predominant chemical structure at its pI, including the predominant + and - charges present. Assume the N-terminal amino group has a pKa of 10.0 and the C-terminal carboxylic group a pKa of 3.4. Assume the pKas for the amino acid side chains are as given in Table 4.1 in the Garrett and Grisham text.

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