Discuss and compare the potential contributions for tertiary structure in a protein for the side chain of histidine at each of the following pH values: pH 3, pH 7 and pH 10. (pKa of R group = 6.5). Mathematically describe (show work) and use a full paragraph when discussing each pH (reminder: grammar and spelling will be graded.

PLEASE have the following and help D:. What i need for the chosen of 2/3 choices.  2)   Illustrate detailed chemical scheme for how you will functionalize your biomolecule to the surface of the sensor (e.g. if you wanted to functionalize a protein to a gold SPR chip, you should could show the assembly of an amine-terminated SAM, followed by carbodiimide coupling of. the protein). These schemes should be drawn using a chemical illustration software package (ChemDraw / ChemSketch).Your chemical schemes should be as detailed as necessary to accurately depict the chemical design of your system, DO NOT INCLUDE a step-wise mechanism, it is not necessary. You should include at least one literature reference to support your conjugation strategy.3)  Include an illustration of the functional sensor, and describe whether the sensor is label-free or not, what signal is observed, and how you would detect the interaction (i.e. if a labeled antibody is required, you should describe what label would…

You have a peptide that has the following amino acid sequence: GPMG Draw the structure of the polypeptide's most protonated form, and its charge. Then draw the structures of the increasingly deprotonated forms, along with their charges. Use the information from these structures to calculate the pl (isoelectric point) of the peptide using the pKa values provided in the table below. Write the pl as x.yz, for example, 7.62 or 3.09. Group Terminal a carboxyl group Aspartic acid Glutamic acid Histidine Terminal a-amino group Cysteine Lysine Tyrosine Arginine Acid EM 2-0" + H -N H H N-H H N-H T Base 1 1. تر H -5 H H O™ N-H Typical pK, 3.1 4.1 6.0 8.0 8.3 10.8 10.9 12.5