Chapter 25, Problem 66PP

Interpretation Introduction

Interpretation:

Bond-line structure of Methionine enkephalin needs to be drawn.

Concept introduction:

Bond-line structure is the representation of organic structural formulas in a shorthand manner.  In this case only the bond between carbon and other atoms are shown except hydrogen.  It is understood that all the remaining valency to be filled by hydrogen.  Apart from carbon atoms the other atoms are shown along with hydrogen.  For drawing a peptide sequence in bond-line structure the steps need to be followed are,

• Draw the peptide with correct number of residues
• The side chain associated with the residue has to be identified
• Assign proper configuration for the residues