When Will a Protein Have a Net Negative Charge

question 70

Multiple Choice

When will a protein have a net negative charge?

• A) always
• B) never
• C) when the pH is above its isoelectric point
• D) when the pH is below its isoelectric point

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Definitions:

Ppm

Stands for "parts per million," a unit of concentration often used in chemistry and environmental science to describe small amounts of a substance in a larger matrix.

NMR Data

Refers to the information obtained from Nuclear Magnetic Resonance spectroscopy, which is used to determine molecular structure and dynamics.

Triplet

A signal in NMR spectroscopy that is split into three peaks, suggesting an atom's hydrogen atoms are coupled to two equivalent neighboring hydrogens.

Broad Singlet

A NMR signal appearing as a single peak but broader than typical singlets, often resulting from molecules with rapid internal motion.