Draw the linear fisher projections of D-ribarnic acid, L-xyluronic acid, D-arabinuronic acid, L-gluconate, D-mannarate, L-idarate and D-galacturonate, and D-lyxonate
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- Draw the following compounds: a. α- and β-anomers of D-galactose b. aldonic acid, uronic acid, and aldaric acid derivatives of galactose c. galactitol d. δ-lactone of galactonic acidCalculate the number of possible pentapeptides that contain one residueeach of Ala, Gly, His, Lys, and Val.Show the steps involved in a Merrifield synthesis of Phe-Ala-Val.
- Draw the structures for nordihydrocapsaicin, capsaicin, and dihydrocapsaicin. How are they structurally related? a. How do their side chain structures differ in terms of carbon chain length and degree of unsaturation? b. What portion of the capsainoid molecular structure contributes the most to its hydrophobicity?From the peptide chain: Met-Tyr-Phe-Arg-Ile-Glu-Asn-Asp-Ser, draw the structure of the product formed when reacted with ElastaseWhat modified sugars makeup heparin, hyaluronate, and chondroitin-6-sulfate?
- Draw the structure of the pentapeptide Gln-Trp-His-Glu-Tyr that would predominate in acqueous solution at pH=10.3. (Relevant pKa values are: 2.2,4.3,6.0,9.8 and 10.1)Draw the tetrapeptide Met-Ile-Lys-Glu at a ph of 12?Identify the structure of the predominant form of the pentapeptide at pH = 12 if there is a pentapeptide Ile-Lys-Asp-Phe-Gly