What Technique Can Clarify the Dynamic Events That Occur as a Protein

question 78

Multiple Choice

What technique can clarify the dynamic events that occur as a protein functions by introducing into the protein chemical groups (called nitroxides) that contain an unpaired electron? The properties of these nitroxides are sensitive to the distance that separates them and the unpaired electron produces a characteristic spectrum that can be monitored by the technique in question.The technique yields information about the distance between selected protein residues.

• A)site-directed mutagenesis
• B)site-directed amenuensis
• C)hydropathy plots
• D)electron paramagnetic resonance (EPR)spectroscopy
• E)infrared spectroscopy

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Definitions:

Cost of merchandise sold

The total cost incurred by a company to sell its merchandise during a specific period, including the cost of the goods themselves plus any additional costs related to their sale.

Perpetual inventory system

A method of accounting for inventory that records the sale or purchase of inventory immediately through the use of computerized point-of-sale systems and enterprise asset management software.

LIFO cost method

An inventory costing method that assumes the last items purchased or produced are the first ones sold, impacting the cost of goods sold and inventory valuation.

Gross profit

The difference between revenue and the cost of goods sold before accounting for certain other costs like operating expenses.