dentify the primary structure of a hexapeptide containing five different amino acids if the following smaller peptides are among the partial hydrolysis products: Gly-Cys, Ala-Ser, Ala-Gly, and Cys-Val-Ala

Draw the R groups for the following amino acids: Glycine Alanine Proline

draw disaccharide as Haworth projection: (shown in image) -is this drawing a reducing sugar? Briefly explain

Draw tripeptide Lys-Thr-Glu at pH 7.4 and circle the six atoms that are restricted in the same plane.

Consider the peptide Trp-Arg-Glu-Cys-Gly-Tyr. For the drawings requested below,  please show them in zig-zag style, from amino to carboxy terminus, with correct  stereochemistry Draw the predominant form at pH = 2  Draw the predominant form at pH = 5  Draw the predominant form at pH = 7  Draw the predominant form at pH = 12

What fragments can be generated in the decapeptide Gly-Lys-Ala-Met-Gly-Gly-Phe-Tyr-Trp-Ala if is subjected to: (a) trypsin, (b) chymotrypsin, and (c) cyanogen bromide.

Based on your knowledge of the natural amino acids, what would you expect pKa of the sidechain of beta-(aminomethyl)succinic acid to be? Draw an appropriate titration curve for beta-(aminomethyl)succinic acid, labeling the axes, indicating the equivalence points and the pKavalues, and use a drawing to show the protonated/deprotonated forms.

Draw the Fischer projections representing the L forms of the following amino acids at pH higher than their isoelectric point. a) cysteine b) alanine