Chapter 4: Q33. (page 96)
Draw the structure of the dipeptide β-alanylhistidine, also known as carnosine.
Short Answer
The structure of dipeptide carnosine is as shown.
Chapter 4: Q33. (page 96)
Draw the structure of the dipeptide β-alanylhistidine, also known as carnosine.
The structure of dipeptide carnosine is as shown.
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Get started for freeThe bacterially produced antibiotic gramicidin A forms channels in cell membranes that allow the free diffusion of andions, thereby killing the cell. This peptide consists of a sequence ofand-amino acids. The sequence of a segment of five amino acids in gramicidin A is. Complete the Fischer projection below by adding the correct group to each vertical bond
Indicate whether the following familiar objects are chiral or nonchiral: (a) a glove; (b) a tennis ball; (c) a screw; (d) this page; (e) a snowflake; (f) a spiral staircase; and (g) a shoe.
Draw the structure of Lys and Ala linked by an Isopeptide bond.
Draw the four stereoisomers of threonine as Fischer projections.
Some bacteria produce poly-γ-glutamic acid, a polymer in which the amino group of each glutamate residue is condensed with the γ-carboxylate group of the adjacent residue. Draw the repeating structure of this polymer.
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