Draw the structure of the NDPH peptide at pH 2, with the prolyl peptide bond in the cis configuration, and all other peptide bonds in the trans configuration.
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Draw the structure of the NDPH peptide at pH 2, with the prolyl peptide bond in the cis configuration, and all other peptide bonds in the trans configuration.
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- Draw the structure of the following peptide as it would be at pH = 7. Does the molecule have a net charge at that pH? ExplainMet-Ser-Glu-Ala-Lys-Lys-GluDraw the structure of a dipeptide containing the amino acidsalanine and tyrosine and outline the peptide bond.The oligopeptide isolated from the brain of an animal has the sequence glu-his-tri-ser-tyr-gly-leu-arg-pro-gly. Determine the total charge of the molecule at pH 3.0; 5.5; 11.0. In which pH range there is the isoelectric point of the peptide?
- Draw the structure of Lys and Ala linked by an isopeptide bond.The peptide KNYPEH N-terminal amino group has a pKa of 8.6 and the C-terminal carboxylate group has a pKa of 4.5. What is the net charge of this peptide at a pH of 1, 7, and 15?Draw a peptide containing ELPT amino acids at pH 7 and label the phi and psi bonds. What is the isometric point of the peptide?