The observation that proline residues are never found in short alpha-helices. Introduction: The alpha helix is the common motif within the protein’s secondary structure, and it is the right hand-spiral conformation within which every backbone N-H group gives a hydrogen bond towards a backbone C=O group of an amino acid situated 3 or 4 residues prior along protein sequence.

Question

Want to see the full answer?

Answer 1

Question

Chapter 9, Problem 15P

Interpretation Introduction

To explain:

The observation that proline residues are never found in short alpha-helices.

Introduction:

The alpha helix is the common motif within the protein’s secondary structure, and it is the right hand-spiral conformation within which every backbone N-H group gives a hydrogen bond towards a backbone C=O group of an amino acid situated 3 or 4 residues prior along protein sequence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

carbons in each of the structures below. For instance, the central carbon of chloromethylbutane (pictured 3. A chiral carbon is a carbon that is single-bonded to four different types of groups. Identify the chiral above) is a chiral carbon. (Can you see how the groups attached to it are all chemically different?) In each of the chiral molecules below, identify all the carbons that are chiral carbons by drawing a circle around each one of them. (a) the carbohydrate glucose H O (b) the carbohydrate fructose CH₂OH 1C H-C-OH 3 HO-C-H 4 H-C-OH 5 H-C-OH 6CH₂OH D-Glucose (linear form) (c) the amino acid leucine O O H3C. HO H H- -OH CH 3 NH2 H- -OH CH₂OH OH

We always include controls in the Annexin-V-GFP/Propidium Iodide flow cytometric assay to study apoptosis. List four types of controls in this assay. Why do we need these controls? Explain your answers. After the flow assay, if we like to examine the morphology of the viable, early apoptotic and late apoptotic cells by confocal microscopy, what can we do and what are the expected results?

3. (2 points) Your lab partner accidentally used a pen instead of a pencil to mark the baseline and label the lanes of their TLC plate. Briefly (1-2 sentences for each point) describe (a) what would happen to the ink when you develop the TLC plate; and (b) how this would affect the experiment. 1