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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 SDS-PAGE Electrophoresis<br />

1. What are four ways to quantify the amount of protein in a sample?<br />

2. What does primary (1°), secondary (2°), tertiary (3°), <strong>and</strong> quaternary (4°) protein structure refer to?<br />

3. Describe SDS-PAGE analysis. Why would you use SDS-PAGE to analyze your samples?<br />

4. What are BME <strong>and</strong> DTT <strong>and</strong> what do they do to a protein?<br />

5. Describe the components <strong>and</strong> function of each component in Laemmli sample buffer.<br />

54 Chapter 2: Focus Questions

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