SAPLINGPLUS FOR PRINCIPLES OF BIOCHEMIS
SAPLINGPLUS FOR PRINCIPLES OF BIOCHEMIS
7th Edition
ISBN: 9781319424572
Author: nelson
Publisher: MAC HIGHER
Question
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Chapter 3, Problem 1P
Summary Introduction

To determine: Whether the given Citrulline structure is L-amino acid or D-amino acid.

Introduction: Isomers are the compounds that have similar molecular formula, but different structural formula. L-form (levorotatory) and D-form (dextrorotatory) are optical isomers or stereoisomers. They have the same chemical structure, but their spatial arrangement is different.

Expert Solution & Answer
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Answer to Problem 1P

Correct answer: The given structure of Citrulline is in L-conformation.

Explanation of Solution

Explanation:

In D-Citrulline, the amino group (-NH2) present on the penultimate carbon is on the right side. In L-Citrulline, the amino group (-NH2) present on the penultimate carbon is on the left side. In the given case, the amino group is present on the left side and thus, the given structure is L-conformation of Citrulline.

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