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Protein Expression and Purification Series - Bio-Rad

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CHAPTER 2<br />

FOCUS QUESTIONS<br />

<strong>Protein</strong> <strong>Expression</strong> <strong>and</strong> <strong>Purification</strong> <strong>Series</strong><br />

Focus Questions for <strong>Protein</strong> <strong>Expression</strong><br />

1. What is a recombinant protein, <strong>and</strong> why would it be used instead of a native protein?<br />

2. Name at least one pro <strong>and</strong> one con of using eukaryotic cells to produce a recombinant protein. When<br />

would you choose to use eukaryotic cells to produce a recombinant protein?<br />

3. Name at least one pro <strong>and</strong> one con of using prokaryotic cells to produce a recombinant protein. When<br />

would you choose to use prokaryotic cells to produce a recombinant protein?<br />

4. What are three considerations for recombinant protein gene design?<br />

5. What is the log phase of a cell culture, <strong>and</strong> why is it important to recombinant protein production?<br />

6. Why are subcultures prepared when trying to produce recombinant proteins?<br />

7. What is the purpose of adding glucose to culture media for lac operon systems?<br />

50 Chapter 2: Focus Questions

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